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100mA POSITIVE VOLTAGE REGULATOR
Description
The AS78LXX series are three terminal positive regulators designed
for a wide variety of applications including local, on-card regulation.
This series of regulators are complete with internal current limiting,
thermal shutdown protection, and safe-area compensation which
make them virtually immune from output overload. If adequate heat
sinking are provided, these regulators can deliver output currents up
to 100mA.
The AS78LXX series are available in TO-92 (bulk or ammo packing),
SOT-89 and SOIC-8 packages.
Features
Output Current up to 100mA
Fixed Output Voltages of 5V, 12V and 15V
Output Voltage Accuracy of ±5% over the Full Temperature
Range
Internal Short Circuit Current Limiting
Internal Thermal Overload Protection
No External Components
Output Transistor Safe-area Protection
Applications
Consumer Electronics
Microprocessor Power Supply
Mother Board
Pin Assignments
Z Package Z Package R Package
(TO-92(Bulk Packing)) (TO-92(Ammo Packing)) (SOT-89 Option 1)
R Package M Package
(SOT-89 Option 2) (SOIC-8)
1
2
3
OUTPUT
GND
INPUT
OUTPUT
GND
INPUT
1
2
3
INPUT
GND
1
2
3
4
8
7
6
5
GND
NC
NC
GND
GND
OUTPUT
1
2
3INPUT
GND
OUTPUT
GND
INPUT
1
2
3
GND
OUTPUT
GND
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Typical Applications Circuit
A (B)
A for 3-pin B for 8-pin
Functional Block Diagram
A (B)
A for 3-pin B for 8-pin
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Absolute Maximum Ratings (Note 1)
Symbol Parameter Rating Unit
VIN Input Voltage 36 V
TJ Operating Junction Temperature 150 ºC
TLEAD Lead Temperature (Soldering, 10sec) 260 ºC
PD Power Dissipation 750 mW
TSTG Storage Temperature Range -65 to 150 ºC
JA Thermal Resistance TO-92 180 ºC/W
ESD ESD (Human Body Model) 2000 V
ESD ESD (Machine Model) 200 V
Note 1: Stresses greater than 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 Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol Parameter Min Max Unit
VIN Input Voltage
AS78L05 30
V
AS78L12 36
AS78L15 36
TJ Operating Junction Temperature Range -40 125 ºC
AS78LXX
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Electrical Characteristics
AS78L05 (@ VIN=10V, IOUT=40mA, CIN=0.33µF, COUT=0.1µF, TJ=25ºC, Bold typeface applies over -40oC≤TJ≤125oC, unless otherwise
specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOUT Output Voltage
4.8 5.0 5.2
V
7V≤VIN≤20V,
1mA≤IOUT≤100mA, PD≤0.75W 4.75 5.25
VRLINE Line Regulation 7V≤VIN≤20V 8 150 mV
VRLOAD Load Regulation 1mA≤IOUT≤100mA 10 60 mV
IQ Quiescent Current 3 5.5 mA
△IQ Quiescent Current Change
8V≤VIN≤20V
1.5 mA
1mA≤IOUT≤40mA
0.1
PSRR Ripple Rejection f=120Hz, 8V≤VIN≤18V 47 62 dB
VDROP Dropout Voltage
IOUT=40mA 1.7
V
IOUT=100mA 1.8
NO Output Noise Voltage 10Hz≤f≤100kHz (Note 2) 40 µV
△VOUT/△T Output Voltage Temperature
Coefficient IOUT=5mA
0.42 mV/oC
(△VOUT/VOUT)/
△T 84 ppm/oC
θJC Thermal Resistance
TO-92 40
ºC/W SOT-89 28.3
SOIC-8 62
Note 2: 0.01µF minimum load capacitance is recommended to limit high frequency noise.
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Electrical Characteristics (Cont.)
AS78L05C (@ VIN=10V, IOUT=40mA, CIN=0.33µF, COUT=0.1µF, TJ=25ºC, Bold typeface applies over -40oC≤TJ≤125oC, unless otherwise
specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOUT Output Voltage 5.0 5.1 V
VRLINE Line Regulation 7V≤VIN≤20V 8 150 mV
VRLOAD Load Regulation 1mA≤IOUT≤100mA 10 60 mV
IQ Quiescent Current 3 5.5 mA
△IQ Quiescent Current Change
8V≤VIN≤20V
1.5 mA
1mA≤IOUT≤40mA
0.1
PSRR Ripple Rejection f=120Hz, 8V≤VIN≤18V 47 62 dB
VDROP Dropout Voltage
IOUT=40mA 1.7
V
IOUT=100mA 1.8
NO Output Noise Voltage 10Hz≤f≤100kHz (Note 2) 40 µV
△VOUT/△T Output Voltage Temperature
Coefficient IOUT=5mA
0.42 mV/oC
(△VOUT/VOUT)/
△T 84 ppm/oC
θJC Thermal Resistance
TO-92 40
ºC/W SOT-89 28.3
SOIC-8 62
Note 2: 0.01µF minimum load capacitance is recommended to limit high frequency noise.
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Electrical Characteristics (Cont.)
AS78L12 (@ VIN=19V, IOUT=40mA, CIN=0.33µF, COUT=0.1µF, TJ=25ºC, Bold typeface applies over -40oC≤TJ≤125oC, unless otherwise
specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOUT Output Voltage
11.5 12.0 12.5
V
14.5V≤VIN≤27V,
1mA≤IOUT≤100mA, PD≤0.75W 11.4 12.6
VRLINE Line Regulation 14.5V≤VIN≤27V 20 250 mV
VRLOAD Load Regulation 1mA≤IOUT≤100mA 20 100 mV
IQ Quiescent Current 3 6 mA
△IQ Quiescent Current Change
16V≤VIN≤27V
1.5 mA
1mA≤IOUT≤40mA
0.1
PSRR Ripple Rejection f=120Hz, 15V≤VIN≤25V 37 42 dB
VDROP Dropout Voltage
IOUT=40mA 1.7
V
IOUT=100mA 1.8
NO Output Noise Voltage 10Hz≤f≤100kHz (Note 2) 80 µV
△VOUT/△T Output Voltage Temperature
Coefficient IOUT=5mA
1 mV/oC
(△VOUT/VOUT)/
△T 84 ppm/oC
θJC Thermal Resistance
TO-92 40
ºC/W SOT-89 28.3
SOIC-8 62
Note 2: 0.01µF minimum load capacitance is recommended to limit high frequency noise.
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Electrical Characteristics (Cont.)
AS78L15 (@ VIN=23V, IOUT=40mA, CIN=0.33µF, COUT=0.1µF, TJ=25ºC, Bold typeface applies over -40oC≤TJ≤125oC, unless otherwise
specified.)
Symbol Parameter Conditions Min Typ Max Unit
VOUT Output Voltage
14.4 15.0 15.6
V
17.5V≤VIN≤30V,
1mA≤IOUT≤100mA, PD≤0.75W 14.25 15.75
VRLINE Line Regulation 17.5V≤VIN≤30V 25 250 mV
VRLOAD Load Regulation 1mA≤IOUT≤100mA 25 150 mV
IQ Quiescent Current 3 6 mA
△IQ Quiescent Current Change
20V≤VIN≤30V
1.5 mA
1mA≤IOUT≤40mA
0.1
PSRR Ripple Rejection f=120Hz, 18.5V≤VIN≤28.5V 34 39 dB
VDROP Dropout Voltage
IOUT=40mA 1.7
V
IOUT=100mA 1.8
NO Output Noise Voltage 10Hz≤f≤100kHz (Note 2) 90 µV
△VOUT/△T Output Voltage Temperature
Coefficient IOUT=5mA
1.25 mV/oC
(△VOUT/VOUT)/
△T 84 ppm/oC
θJC Thermal Resistance
TO-92 40
ºC/W SOT-89 28.3
SOIC-8 62
Note 2: 0.01µF minimum load capacitance is recommended to limit high frequency noise.
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Performance Characteristics
Output Voltage vs. Input Voltage Output Voltage vs. Case Temperature
Over Temperature Protection Dropout Voltage vs. Case Temperature
Output Voltage vs. Output Current Quiescent Current vs. Case Temperature
0 5 10 15 20 25 30 35
0
5
10
15
20
25
30
TC=25oC
IOUT=40mA
Output Voltage (V)
Input Voltage (V)
AS78L05
AS78L12
-25 0 25 50 75 100 125
4.99
5.00
5.01
5.02
5.03
5.04
5.05
5.06
5.07
Output Voltage (V)
Case Temperature (oC)
AS78L05
VIN=10V
IOUT=1mA
0 25 50 75 100 125 150 175 200
0
2
4
6
8
10
12
14
16
18
20
22
24
26
VIN=10V/19V/33V
IOUT=1mA
Output Voltage (V)
Case Temperature (oC)
AS78L05
AS78L12
-25 0 25 50 75 100 125
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
AS78L05
VOUT=VOUT(nominal)x99%
Dropout Voltage (V)
Case Temperature (oC)
1mA
40mA
70mA
100mA
0 50 100 150 200 250
0
5
10
15
20
25
VIN=10V/19V/33V
TC=25oC
Output Voltage (V)
Output Current (mA)
AS78L05
AS78L12
-25 0 25 50 75 100 125
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
Quiescent Current (mA)
Case Temperature (oC)
AS78L05
VIN=10V
IOUT=1mA
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Performance Characteristics (Cont.)
Power Dissipation vs. Case Temperature PSRR vs. Frequency
Line Transient Load Transient
(Conditions: IOUT=40mA, CIN=0.33µF, COUT=0.1µF) (Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)
Time (20µs/Div) Time (40µs/Div)
-25 0 25 50 75 100 125
0.0
0.4
0.8
1.2
1.6
2.0
2.4
2.8
Power Dissipation (W)
Case Temperature (oC)
AS78L05
10 100 1000 10000 100000 1000000
0
10
20
30
40
50
60
PSRR (dB)
Frequency (Hz)
AS78L05
VIN=10V
IOUT=40mA
CIN=0.33F
COUT=0.1F
V
OUT
(100mV/Di v) I
OUT
(100mA/Div)
0
100
0
100
AS78L05
-100
-
200
-100
200
AS78L05
10
V
OUT
(20mV/Div) V
IN
(5V/Div)
15
0
20
20
5
-20
-
40
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Ordering Information
AS78LXX -
Circuit Type
Package Temperature
Range
Part Number Marking ID Packing
Type
Lead F ree Green Lead Free Green
TO-92 -40 to 125C
AS78L05Z-E1 AS78L05Z-G1 AS78L05Z-E1 AS78L05Z-G1
Bulk
AS78L05ZTR-E1 AS78L05ZTR-G1 AS78L05Z-E1 AS78L05Z-G1
Ammo
AS78L05CZTR-E1 AS78L05CZTR-G1 AS78L05Z-E1 AS78L05Z-G1 Ammo
AS78L12Z-E1 AS78L12Z-G1 AS78L12Z-E1 AS78L12Z-G1
Bulk
AS78L12ZTR-E1 AS78L12ZTR-G1 AS78L12Z-E1 AS78L12Z-G1
Ammo
AS78L15Z-E1 AS78L15Z-G1 AS78L15Z-E1 AS78L15Z-G1
Bulk
AS78L15ZTR-E1 AS78L15ZTR-G1 AS78L15Z-E1 AS78L15Z-G1
Ammo
SOT-89 -40 to 125C
AS78L05RTR-E1 AS78L05RTR-G1 E78E G78E Tape &
Reel
AS78L12RTR-E1 AS78L12RTR-G1 E78F G78F Tape &
Reel
AS78L15RTR-E1 AS78L15RTR-G1 E78G G78G Tape &
Reel
SOIC-8 -40 to 125C
AS78L05M-E1 AS78L05M-G1 AS78L05M-E1 AS78L05M-G1 Tube
AS78L05MTR-E1 AS78L05MTR-G1 AS78L05M-E1 AS78L05M-G1
Tape &
Reel
AS78L12M-E1 AS78L12M-G1 AS78L12M-E1 AS78L12M-G1 Tube
AS78L12MTR-E1 AS78L12MTR-G1 AS78L12M-E1 AS78L12M-G1
Tape &
Reel
AS78L15M-E1 AS78L15M-G1 AS78L15M-E1 AS78L15M-G1 Tube
AS78L15MTR-E1 AS78L15MTR-G1 AS78L15M-E1 AS78L15M-G1
Tape &
Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are
available in green packages.
E1: Lead Free
G1: Green
Output Voltage
05: 5V
12: 12V
15: 15V
Package
Z: TO-92
R: SOT-89
M: SOIC-8
Blank: Normal Precision
C: High Precision
TR: Tape & Reel or Ammo
Blank: Bulk or Tube
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Package Outline Dimensions (All dimensions in mm(inch).)
TO-92 (Bulk Packing)
2.420(0. 095)
2.660(0.105)
0.360(0.014)
0.760(0.030)
Φ
1.600(0.063)
MAX
12.500(0.492)
15.500(0.610)
1.270(0.050)
TYP
3.300(0.130)
3.700(0.146)
4.300(0.169)
4.700(0.185)
1.000(0.039)
1.400(0. 055)
4.400(0.173)
4.800(0.189)
3.430(0.135)
MIN
0.320(0.013)
0.510(0.020)
0.000(0.000)
0.380(0.015)
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Package Outline Dimensions (Cont. All dimensions in mm(inch).)
TO-92 (Ammo Packing)
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Package Outline Dimensions (Cont. All dimensions in mm(inch).)
SOT-89
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Package Outline Dimensions (Cont. All dimensions in mm(inch).)
SOIC-8
0°
8°
1°
7°
R0.150(0.006)
R0.150(0.006)
1.000(0.039)
0.300(0.012)
0.510(0.020)
1.350(0.053)
1.750(0.069)
0.100(0. 004)
0.300(0. 012)
0.900(0.035)
3.800(0.150)
4.000(0.157)
7°
7°
20:1
D
1.270(0.050)
TYP
0.150(0.006)
0.250(0.010)
8°
D
5.800(0. 228)
6.200(0. 244)
0.675(0.027)
0.725(0.029)
0.320(0.013)
8°
0.450(0.017)
0.800(0.031)
4.700(0.185)
5.100(0.201)
Note: Eject hole , oriented hole and mold mark is optional.
Option 1
Option 1
Option 2 0.350(0.014)
TYP
TYP
TYP
TYP
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Suggested Pad Layout
SOT-89
Dimensions Z
(mm)/(inch) X
(mm)/(inch) X1
(mm)/(inch) X2
(mm)/(inch) Y
(mm)/(inch) Y1
(mm)/(inch) E
(mm)/(inch)
Value 4.600/0.181 0.550/0.022 1.850/0.073 0.800/0.031 1.300/0.051 1.475/0.058 1.500/0.059
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Suggested Pad Layout (Cont.)
SOIC-8
Dimensions Z
(mm)/(inch) G
(mm)/(inch) X
(mm)/(inch) Y
(mm)/(inch) E
(mm)/(inch)
Value 6.900/0.272 3.900/0.154 0.650/0.026 1.500/0.059 1.270/0.050
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IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
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