TA− Free-Air Temperature − °C
15
22
Ground Current − µA
VI= 4.3 V
C
O
= 4.7 µF
60
21
20
19
18
17
16
I
O
= 0 mA
I
O
= 100 mA
80 100 120 14040200−20−40−60
3
2
4
5
DBV PACKAGE
(TOP VIEW)
1
IN
GND
EN
OUT
NC/FB
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
Ultralow-Power 100-mA Low-Dropout Linear Regulators
Check for Samples: TPS76901-Q1,TPS76912-Q1,TPS76915-Q1,TPS76918-Q1,TPS76925-Q1,TPS76927-Q1,TPS76928-
Q1,TPS76930-Q1,TPS76933-Q1,TPS76950-Q1
1FEATURES
• Qualified for Automotive Applications
• 100-mA Low-Dropout Regulator
• Available in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-
V, 3-V, 3.3-V and 5-V Fixed-Output and
Adjustable Versions
• Only 17-µA Quiescent Current at 100 mA
• 1-µA Quiescent Current in Standby Mode
• Dropout Voltage Typically 71 mV at 100 mA
• Over Current Limitation
•−40°C to 125°C Operating Junction
Temperature Range
• 5-Pin SOT-23 (DBV) Package
DESCRIPTION
The TPS769xx-Q1 family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage,
ultralow-power operation, and miniaturized packaging. These regulators feature low-dropout voltages and
ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-pin small outline integrated-
circuit SOT-23 package, the TPS769xx-Q1 series devices are ideal for micropower operations and where board
space is at a premium.
A combination of new circuit design and process innovation has enabled the usual PNP pass transistor to be
replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the
dropout voltage is very low, typically 71 mV at 100 mA of load current (TPS76950-Q1), and is directly
proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current
is ultralow (28 μA maximum) and is stable over the entire range of output load current (0 mA to 100 mA). The
ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery
operating life, making this device suitable for use in automotive applications.
The TPS769xx-Q1 devices also feature a logic-enabled sleep mode to shut down the regulator, reducing
quiescent current to 1 μA typical at TJ= 25°C. The TPS769xx-Q1 devices are offered in 1.2-V, 1.5-V, 1.8-V, 2.5-
V, 2.7-V, 2.8-V, 3-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the
range of 1.2 V to 5.5 V).
1Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright © 2001–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
TPS76901-Q1
OUT
IN
FB
GND
EN
VREF
TPS769xx-Q1
OUT
IN
GND
EN
VREF
Current Limit
/ Thermal
Protection
Current Limit
/ Thermal
Protection
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
ORDERING INFORMATION(1)
TJVOLTAGE PACKAGE(2) ORDERABLE PART NUMBER SYMBOL
Variable 1.2 V PCFQ
TPS76901QDBVTQ1(3) TPS76901QDBVRQ1(4)
to 5.5 V
1.2 V TPS76912QDBVTQ1 TPS76912QDBVRQ1 PCGQ
1.5 V TPS76915QDBVTQ1 TPS76915QDBVRQ1 PCHQ
1.8 V TPS76918QDBVTQ1 TPS76918QDBVRQ1 PCIQ
2.5 V TPS76925QDBVTQ1 TPS76925QDBVRQ1 PCJQ
–40°C to 125°C SOT-23 (DBV)
2.7 V TPS76927QDBVTQ1 TPS76927QDBVRQ1 PCKQ
2.8 V TPS76928QDBVTQ1 TPS76928QDBVRQ1 PCLQ
3 V TPS76930QDBVTQ1 TPS76930QDBVRQ1 PCMQ
3.3 V TPS76933QDBVTQ1 TPS76933QDBVRQ1 PCNQ
5 V TPS76950QDBVTQ1 TPS76950QDBVRQ1 PCOQ
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(3) The DBVT indicates a tape and reel of 250 parts.
(4) The DBVR indicates a tape and reel of 3000 parts.
FUNCTIONAL BLOCK DIAGRAM
2Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
PIN FUNCTIONS
TERMINAL I/O DESCRIPTION
NAME NO.
GND 2 Ground
EN 3 I Enable input
FB 4 I Feedback voltage (TPS76901-Q1 only)
IN 1 I Input supply voltage
NC 4 No connection (Fixed options only)
OUT 5 O Regulated output voltage
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted) VALUE UNIT
Input voltage range(2) –0.3 to 13.5 V
Voltage range at EN –0.3 to VI+ 0.3 V
Voltage on OUT, FB 7 V
Peak output current Internally Limited
ESD rating, HBM 2 kV
Continuous total power dissipation See Dissipation Rating Table
TJOperating virtual junction temperature range –40 to 150 °C
Tstg Storage temperature range –65 to 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values are with respect to network ground terminal.
DISSIPATION RATINGS TA≤25°C TA= 70°C TA= 85°C
DERATING FACTOR
BOARD PACKAGE RθJC RθJA POWER POWER POWER
ABOVE TA= 25°C RATING RATING RATING
Low K(1) DBV 65.8 °C/W 259 °C/W 3.9 mW/°C 386 mW 212 mW 154 mW
High K(2) DBV 65.8 °C/W 180 °C/W 5.6 mW/°C 555 mW 305 mW 222 mW
(1) The JEDEC Low K (1s) board design used to derive this data was a 3 inch x 3 inch, two layer board with 2 ounce copper traces on top
of the board.
(2) The JEDEC High K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and
ground planes and 2 ounce copper traces on top and bottom of the board.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT
Input voltage, VI(1) 2.7 10 V
Output voltage range, VO1.2 5.5 V
Continuous output current, IO(2) 0 100 mA
Operating junction temperature, TJ−40 125 °C
(1) To calculate the minimum input voltage for your maximum output current, use the following formula: VI(min) = VO(max) + VDO
(max load)
(2) Continuous output current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that
the device operate under conditions beyond those specified in this table for extended periods of time.
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
O lmax O
V (V (V 1V))
Line Reg. (mV) (% / V) 1000
100
- +
= ´ ´
O lmax
V (V 2.7 V)
Line Reg. (mV) (% / V) 1000
100
-
= ´ ´
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
ELECTRICAL CHARACTERISTICS
over recommended operating free-air temperature range, VI= VO(typ) + 1 V, IO= 100 mA, EN = 0 V, Co= 4.7 µF (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
1.2 V ≤VO≤5.5 V, TJ= 25°C VO
TPS76901-Q1 1.2 V ≤VO≤5.5 V, TJ= –40°C to 125°C 0.97 VO1.03 VO
TJ= 25°C, 2.7 V < VIN < 10 V 1.224
TPS76912-Q1 TJ= –40°C to 125°C, 2.7 V < VIN < 10 V 1.187 1.261
TJ= 25°C, 2.7 V < VIN < 10 V 1.5
TPS76915-Q1 TJ= –40°C to 125°C, 2.7 V < VIN < 10 V 1.455 1.545
TJ= 25°C, 2.8 V < VIN < 10 V 1.8
TPS76918-Q1 TJ= –40°C to 125°C, 2.8 V < VIN < 10 V 1.746 1.854
TJ= 25°C, 3.5 V < VIN < 10 V 2.5
TPS76925-Q1
Output voltage TJ= –40°C to 125°C, 3.5 V < VIN < 10 V 2.425 2.575
(10 ∝A to 100 mA V
TJ= 25°C, 3.7 V < VIN < 10 V 2.7
load)(1) TPS76927-Q1 TJ= –40°C to 125°C, 3.7 V < VIN < 10 V 2.619 2.781
TJ= 25°C, 3.8 V < VIN < 10 V 2.8
TPS76928-Q1 TJ= –40°C to 125°C, 3.8 V < VIN < 10 V 2.716 2.884
TJ= 25°C, 4 V < VIN < 10 V 3
TPS76930-Q1 TJ= –40°C to 125°C, 4 V < VIN < 10 V 2.910 3.090
TJ= 25°C, 4.3 V < VIN < 10 V 3.3
TPS76933-Q1 TJ= –40°C to 125°C, 4.3 V < VIN < 10 V 3.201 3.399
TJ= 25°C, 6 V < VIN < 10 V 5
TPS76950-Q1 TJ=−40°C to 125°C, 6 V < VIN < 10 V 4.850 5.150
EN = 0 V, 0 mA < IO< 100 mA, TJ= 25°C 17
Quiescent current µA
(GND current)(1)(2) EN = 0 V, IO= 100 mA, TJ= –40°C to 125°C 28
Load regulation EN = 0 V, IO= 0 to 100 mA, TJ= 25°C 12 mV
VO+ 1 V < VI≤10 V, TJ= 25°C(1) 0.04
Output voltage line regulation %/V
(∆VO/VO)(2) VO+ 1 V < VI≤10 V, TJ= –40°C to 125°C(1) 0.1
Output noise voltage BW = 300 Hz to 50 kHz, Co= 10 ∝F, TJ= 25°C 190 µVrms
Output current limit VO= 0 V(1) 350 750 mA
EN = VI, 2.7 < VI< 10 V 1 µA
Standby current TJ=−40°C to 125°C 2 µA
FB input current FB = 1.224 V (TPS76901-Q1) –1 1 µA
High level enable input voltage 2.7 V < VI< 10 V 1.7 V
Low level enable input voltage 2.7 V < VI< 10 V 0.9 V
Power supply ripple rejection f = 1 kHz, Co= 10 ∝F, TJ= 25°C 60 dB
EN = 0 V –1 0 1 µA
Input current (EN) EN = VI–1 1 µA
(1) Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. The maximum IN voltage is 10 V, minimum output current
is 10 µA, and maximum output current is 100 mA.
(2) If VO≤1.8 V then VImin = 2.7 V, VImax = 10 V:
If VO≥2.5 V then VImin = VO+ 1 V, VImax = 10 V:
4Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
ELECTRICAL CHARACTERISTICS (continued)
over recommended operating free-air temperature range, VI= VO(typ) + 1 V, IO= 100 mA, EN = 0 V, Co= 4.7 µF (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IO= 50 mA, TJ= 25°C 60
IO= 50 mA, TJ= –40°C to 125°C 125
TPS76928-Q1 IO= 100 mA, TJ= 25°C 122
IO= 100 mA, TJ= –40°C to 125°C 245
IO= 50 mA, TJ= 25°C 57
IO= 50 mA, TJ= –40°C to 125°C 115
TPS76930-Q1 IO= 100 mA, TJ= 25°C 115
IO= 100 mA, TJ= –40°C to 125°C 230
Dropout voltage(3) mV
IO= 50 mA, TJ= 25°C 48
IO= 50 mA, TJ= –40°C to 125°C 100
TPS76933-Q1 IO= 100 mA, TJ= 25°C 98
IO= 100 mA, TJ= –40°C to 125°C 200
IO= 50 mA, TJ= 25°C 35
IO= 50 mA, TJ= –40°C to 125°C 85
TPS76950-Q1 IO= 100 mA, TJ= 25°C 71
IO= 100 mA, TJ= –40°C to 125°C 170
(3) The IN voltage equals VO(typ) −100 mV; the TPS76901-Q1 output voltage is set to 3.3 V nominal with an external resistor divider.
TPS76912-Q1, TPS76915-Q1, TPS76918-Q1, TPS76925-Q1, and TPS76927-Q1 dropout voltage is limited by input voltage range
limitations.
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
IO− Output Current − mA
− Output Voltage − V
VO
3.280
3.274
3.270
3.278
3.276
3.272
3.284
3.282
VI= 4.3 V
C
O= 4.7 µF
TA= 25 °C
0 20 40 60 80 100
T
A
− Free-Air Temperature −°C
1.486
1.480
1.488
1.484
1.496
−60
1.492
1.494
− Output Voltage − V
VO
1.490
1.482
60
IO= 1 mA VI= 2.7 V
CO
= 4.7 µF
I
O
= 100 mA
−40 −20 0 20 40 80 100 120 140
100
2.496
2.488
2.482
2.494
2.490
2.486
2.498
0
− Output Voltage − V
V
O
2.492
2.484
VI= 3.5 V
C
O
= 4.7
µF
T
A
= 25
°C
IO− Output Current − mA
20 40 60 80
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
TYPICAL CHARACTERISTICS
SPACE SPACE
SPACE SPACE
TPS76925-Q1 OUTPUT VOLTAGE TPS76915-Q1 OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT OUTPUT CURRENT
Figure 1. Figure 2.
SPACE SPACE
SPACE SPACE
TPS76933-Q1 OUTPUT VOLTAGE TPS76915-Q1 OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT FREE-AIR TEMPERATURE
Figure 3. Figure 4.
6Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
−60 −20
TA− Free-Air Temperature − °C
15
22
Ground Current − µA
VI= 4.3 V
CO= 4.7 µF
−40 60
21
20
19
18
17
16
IO= 0 mA
IO= 100 mA
0 20 40 80 100 120 140
f − Frequency − Hz
CO= 10 µF
IO= 1 mA
VI= 4.3 V
0
1.6
1
2
0.2
1.4
0.4
1.8
0.6
1.2
0.8
100
CO= 4.7 µF
IO= 1 mA
CO= 4.7 µF
IO= 100 mA
CO= 10 µF
IO= 100 mA
µV Hz
Output Spectral Noise Density −
1k 10k 100k
TA
− Free-Air Temperature −
°C
2.476
2.492
2.486
2.496
− Output Voltage − V
V
O
2.478
2.490
2.480
2.494
2.482
−40 60
IO= 1 mA
I
O= 100 mA
VI= 3.5 V
CO= 4.7 µF
2.488
2.484
−60 −20 0 4020 80 100 120 140
TA− Free-Air Temperature − °C
3.265
3.260
3.255
3.270
3.285
3.275
3.280
− Output Voltage − V
VO
−40 60
IO= 100 mA
VI= 4.3 V
CO= 4.7 µF
IO= 1 mA
−20−60 0 20 40 80 100 120 140
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
TYPICAL CHARACTERISTICS (continued)
SPACE SPACE
SPACE SPACE
TPS76925-Q1 OUTPUT VOLTAGE TPS76933-Q1 OUTPUT VOLTAGE
vs vs
FREE-AIR TEMPERATURE FREE-AIR TEMPERATURE
Figure 5. Figure 6.
SPACE SPACE
SPACE SPACE
TPS76933-Q1 GROUND CURRENT TPS76933-Q1 OUTPUT SPECTRAL NOISE DENSITY
vs vs
FREE-AIR TEMPERATURE FREQUENCY
Figure 7. Figure 8.
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
10 M1 M100 k10 k1 k100
Ripple Rejection − dB
f − Frequency − Hz
100
60
50
40
30
20
10
0
−10
10
VI= 4.3 V
CO= 4.7 µF
ESR = 0.3 Ω
70
80
90
IO= 100 mA
IO= 1 mA
t − Time − µs
40
VO
EN
200 60 80 100 120 140 160 180 200
TA− Free-Air Temperature − °C
1
1000
10
100
VI= 3.2 V
CO= 4.7 µF
− Dropout Voltage − mV
VDO
−40 60
IO= 10 mA
IO= 100 mA
−60 −20 0 20 40 80 100 120 140
f − Frequency − Hz
10 k
− Output Impedance −ZoΩ
0
1.6
1
2
0.2
1.4
0.4
1.8
0.6
1.2
0.8
100 k
VI= 4.3 V
CO
= 4.7 µF
ESR = 0.3 Ω
TA= 25 °C
IO= 100 mA
IO= 1 mA
1 k10010 1 M
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
TYPICAL CHARACTERISTICS (continued)
SPACE SPACE
SPACE SPACE
OUTPUT IMPEDANCE TPS76933-Q1 DROPOUT VOLTAGE
vs vs
FREQUENCY FREE-AIR TEMPERATURE
Figure 9. Figure 10.
SPACE
SPACE
TPS76933-Q1 RIPPLE REJECTION SPACE
vs SPACE
FREQUENCY LDO STARTUP TIME
Figure 11. Figure 12.
8Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
t − Time − µs
5.3
VO
0 40
− Output Voltage − mV
VI− Input Voltage − V
IL= 10 mA
CO= 4.7 µF
ESR = 0.3 Ω
4.3
10
0
−10
20 60 80 100 120 140 160 180
t − Time − µs
0
40
Current Load − mA
100
VI= 4.3 V
CO= 4.7 µF
ESR = 0.3 Ω
100
0
−100
VO
Output Voltage − mV
∆− Change In
200 60 80 100 120 140 160 180
VO
t − Time − µs
40
− Output Voltage − mV
IL= 10 mA
CO= 4.7 µF
ESR = 0.3 Ω
VI− Input Voltage − V
2.7
10
0
−10
3.7
200 60 80 100 120 140 160 180 200
t − Time − µs
0
0
0 40 200
Current Load − mA
100
VI= 2.7 V
CO= 10 µF
ESR = 0.3 Ω
−200
−400
VO
Output Voltage − mV
∆− Change In
20 60 80 100 120 140 160 180
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
TYPICAL CHARACTERISTICS (continued)
SPACE SPACE
SPACE SPACE
TPS76915-Q1 LINE TRANSIENT RESPONSE TPS76915-Q1 LOAD TRANSIENT RESPONSE
Figure 13. Figure 14.
SPACE SPACE
SPACE SPACE
TPS76933-Q1 LINE TRANSIENT RESPONSE TPS76933-Q1 LOAD TRANSIENT RESPONSE
Figure 15. Figure 16.
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
IO− Output Current − mA
1
100
ESR − Equivalent Series Resistance − Ω
10
VIN = 4.3 V
CO= 10 µF
3.3 V LDO
Region of Instability
Region of Stability
0.1
0 25 50 75 100
0.2
Added Ceramic Capacitance − µF
1
100
ESR − Equivalent Series Resistance − Ω
10
Region of Instability
Region of Stability
VIN = 4.3 V
CO= 10 µF
IL= 100 mA
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1
0
100
IO− Output Current − mA
ESR − Equivalent Series Resistance − Ω
10 Region of Instability
VIN = 4.3 V
CO= 4.7 µF
3.3 V LDO
0.1
Region of Stability
25 50 75 100
0.2
Added Ceramic Capacitance − µF
1
100
ESR − Equivalent Series Resistance − Ω
10
Region of Instability
Region of Stability
VIN = 4.3 V
CO= 4.7 µF
IL= 100 mA
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
TYPICAL CHARACTERISTICS (continued)
SPACE SPACE
SPACE SPACE
TPS76933-Q1 TYPICAL REGIONS OF STABILITY TPS76933-Q1 TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR) EQUIVALENT SERIES RESISTANCE (ESR)
vs vs
OUTPUT CURRENT ADDED CERAMIC CAPACITANCE
Figure 17. Figure 18.
SPACE SPACE
SPACE SPACE
TPS76933-Q1 TYPICAL REGIONS OF STABILITY TPS76933-Q1 TYPICAL REGIONS OF STABILITY
EQUIVALENT SERIES RESISTANCE (ESR) EQUIVALENT SERIES RESISTANCE (ESR)
vs vs
OUTPUT CURRENT ADDED CERAMIC CAPACITANCE
Figure 19. Figure 20.
10 Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
C1
1 µF
NC/FB
OUT
1
3
IN
EN
GND
2
4
5
VI
ESR = 0.2 Ω
VO
4.7 µF
+
TPS769xx-Q1
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
APPLICATION INFORMATION
The TPS769xx-Q1 family of low-dropout (LDO) regulators are optimized for use in battery-operated equipment
and automotive applications. They feature extremely low dropout voltages, low quiescent current (17 µA
nominally), and enable inputs to reduce supply currents to 1 µA when the regulators are turned off.
Device Operation
The TPS769xx-Q1 uses a PMOS pass element to dramatically reduce both dropout voltage and supply current
over more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device
and, unlike a PNP transistor, it does not require increased drive current as output current increases. Supply
current in the TPS769xx-Q1 is essentially constant from no load to maximum load.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 350 mA; further load reduces the output
voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction
temperature rises above approximately 165°C. Recovery is automatic when the junction temperature drops
approximately 25°C below the high temperature trip point. The PMOS pass element includes a back gate diode
that conducts reverse current when the input voltage level drops below the output voltage level.
A voltage of 1.7 V or greater on the EN input will disable the TPS769xx-Q1 internal circuitry, reducing the supply
current to 1 µA. A voltage of less than 0.9 V on the EN input will enable the TPS769xx and will enable normal
operation to resume. The EN input does not include any deliberate hysteresis, and it exhibits an actual switching
threshold of approximately 1.5 V.
A typical application circuit is shown in Figure 21.
TPS76912-Q1, TPS76915-Q1, TPS76918-Q1, TPS76925-Q1, TPS76927-Q1, TPS76928-Q1, TPS76930-Q1,
TPS76933-Q1, TPS76950-Q1 (fixed-voltage options).
Figure 21. Typical Application Circuit
External Capacitor Requirements
Although not required, a 0.047-µF or larger ceramic input bypass capacitor, connected between IN and GND and
located close to the TPS769xx-Q1, is recommended to improve transient response and noise rejection. A higher-
value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the
device is located several inches from the power source.
Like all low dropout regulators, the TPS769xx-Q1 requires an output capacitor connected between OUT and
GND to stabilize the internal control loop. The minimum recommended capacitance is 4.7 µF. The ESR
(equivalent series resistance) of the capacitor should be between 0.2 Ωand 10 Ω. to ensure stability. Capacitor
values larger than 4.7 µF are acceptable, and allow the use of smaller ESR values. Capacitances less than 4.7
µF are not recommended because they require careful selection of ESR to ensure stability. Solid tantalum
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
O
ref
V
R1 ( 1) R2
V
= - ´
O ref
R1
V V (1 )
R2
= ´ +
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
electrolytic, aluminum electrolytic, and multilayer ceramic capacitors are all suitable, provided they meet the
requirements described above. Most of the commercially available 4.7 µF surface-mount solid tantalum
capacitors, including devices from Sprague, Kemet, and Nichico, meet the ESR requirements stated above.
Multilayer ceramic capacitors may have very small equivalent series resistances and may therefore require the
addition of a low value series resistor to ensure stability.
Table 1. Capacitor Selection
PART NO. MFR. VALUE MAX ESR SIZE (H × L × W)(1)
T494B475K016AS KEMET 4.7 µF 1.5 Ω1.9 × 3.5 × 2.8
195D106x0016x2T SPRAGUE 10 µF 1.5 Ω1.3 × 7 × 2.7
695D106x003562T SPRAGUE 10 µF 1.3 Ω2.5 × 7.6 × 2.5
TPSC475K035R0600 AVX 4.7 µF 0.6 Ω2.6 × 6 × 3.2
(1) Size is in mm. ESR is maximum resistance in Ωat 100 kHz and TA= 25°C. Contact manufacturer for minimum ESR values.
Output Voltage Programming
The output voltage of the TPS76901-Q1 adjustable regulator is programmed using an external resistor divider as
shown in Figure 22. The output voltage is calculated using:
(1)
Where:
Vref = 1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-µA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose R2 = 169 kΩ
to set the divider current at 7 µA and then calculate R1 using:
(2)
Table 2. Output Voltage Programming Guide
DIVIDER RESISTANCE (kΩ)(1)
OUTPUT VOLTAGE (V) R1 R2
2.5 174 169
3.3 287 169
3.6 324 169
4 383 169
5 523 169
(1) 1% values shown.
12 Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
D I O O
P (V V ) I= - ´
J A
D(max)
JA
T max T
PRq
-
=
VO
VI
OUT
FB
R2
GND
EN
IN
≤0.9 V
≥1.7 V
TPS76901-Q1
1 µF
3
1
4
2
R1
5
ESR = 0.2 Ω
4.7 µF
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
www.ti.com
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
Figure 22. TPS76901-Q1 Adjustable LDO Regulator Programming
Power Dissipation and Junction Temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation the
regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PD(max), and the actual dissipation, PD, which must be less than or
equal to PD(max).
The maximum-power-dissipation limit is determined using the following equation:
(3)
Where:
TJmax is the maximum allowable junction temperature
RθJA is the thermal resistance junction-to-ambient for the package, see the dissipation rating table.
TAis the ambient temperature.
The regulator dissipation is calculated using:
(4)
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
Regulator Protection
The TPS769xx-Q1 PMOS-pass transistor has a built-in back diode that conducts reverse current when the input
voltage drops below the output voltage (for example, during power down). Current is conducted from the output
to the input and is not internally limited. If extended reverse voltage operation is anticipated, external limiting
might be appropriate.
The TPS769xx-Q1 features internal current limiting and thermal protection. During normal operation, the
TPS769xx-Q1 limits output current to approximately 350 mA. When current limiting engages, the output voltage
scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross
device failure, care should be taken not to exceed the power dissipation ratings of the package. If the
temperature of the device exceeds approximately 165°C, thermal-protection circuitry shuts it down. Once the
device has cooled down to below approximately 140°C, regulator operation resumes.
Copyright © 2001–2012, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
TPS76901-Q1, TPS76912-Q1, TPS76915-Q1
TPS76918-Q1, TPS76925-Q1, TPS76927-Q1
TPS76928-Q1, TPS76930-Q1, TPS76933-Q1, TPS76950-Q1
SGLS118C –DECEMBER 2001–REVISED JUNE 2012
www.ti.com
REVISION HISTORY
Changes from Revision B (April, 2008) to Revision C Page
• Changed TPS769xx part names to TPS769xx-Q1 in text and images. ............................................................................... 1
• Updated Figures 17 and 19 to include region of Instability below 0.2 Ω. ........................................................................... 10
14 Submit Documentation Feedback Copyright © 2001–2012, Texas Instruments Incorporated
Product Folder Link(s): TPS76901-Q1 TPS76912-Q1 TPS76915-Q1 TPS76918-Q1 TPS76925-Q1 TPS76927-Q1
TPS76928-Q1 TPS76930-Q1 TPS76933-Q1 TPS76950-Q1
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TPS76901QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76901QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76912QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76912QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76915QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76915QDBVRQ1 ACTIVE SOT-23 DBV 5 TBD Call TI Call TI
TPS76918QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76918QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76925QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76925QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76927QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76927QDBVRQ1 ACTIVE SOT-23 DBV 5 TBD Call TI Call TI
TPS76928QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76928QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76930QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76930QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76933QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76933QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 2
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
TPS76950QDBVRG4Q1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
TPS76950QDBVRQ1 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF TPS76901-Q1, TPS76912-Q1, TPS76915-Q1, TPS76918-Q1, TPS76925-Q1, TPS76927-Q1, TPS76928-Q1, TPS76930-Q1,
TPS76933-Q1, TPS76950-Q1 :
•Catalog: TPS76901, TPS76912, TPS76915, TPS76918, TPS76925, TPS76927, TPS76928, TPS76930, TPS76933, TPS76950
•Enhanced Product: TPS76901-EP
PACKAGE OPTION ADDENDUM
www.ti.com 17-Aug-2012
Addendum-Page 3
NOTE: Qualified Version Definitions:
•Catalog - TI's standard catalog product
•Enhanced Product - Supports Defense, Aerospace and Medical Applications
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All
semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time
of order acknowledgment.
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.
TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which
have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such
components to meet such requirements.
Products Applications
Audio www.ti.com/audio Automotive and Transportation www.ti.com/automotive
Amplifiers amplifier.ti.com Communications and Telecom www.ti.com/communications
Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers
DLP® Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps
DSP dsp.ti.com Energy and Lighting www.ti.com/energy
Clocks and Timers www.ti.com/clocks Industrial www.ti.com/industrial
Interface interface.ti.com Medical www.ti.com/medical
Logic logic.ti.com Security www.ti.com/security
Power Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense
Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video
RFID www.ti-rfid.com
OMAP Mobile Processors www.ti.com/omap TI E2E Community e2e.ti.com
Wireless Connectivity www.ti.com/wirelessconnectivity
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2012, Texas Instruments Incorporated