L7800
SERIES
POSITIVE VOLTAGE REGULATORS
November 2000
■OUTPUT CURRENT UP TO1.5 A
■OUTPUT VOLTAGESOF 5; 5.2; 6; 8; 8.5;9;
12;15; 18; 24V
■THERMAL OVERLOADPROTECTION
■SHORTCIRCUIT PROTECTION
■OUTPUT TRANSITION SOAPROTECTION
DESCRIPTION
The L7800 series of three-terminal positive
regulatorsis available in TO-220 TO-220FP TO-3
and D2PAK packages and several fixed output
voltages, making it useful in a wide range of
applications.These regulators can provide local
on-card regulation, eliminating the distribution
problems associated with single point regulation.
Each type employs internal current limiting,
thermal shut-down and safe area protection,
making it essentially indestructible. If adequate
heat sinking is provided, they can deliver over 1A
output current. Although designed primarily as
fixed voltage regulators, these devices can be
used with external components to obtain
adjustablevoltages and currents.
12
TO-3
TO-220 TO-220FP
D2PAK
BLOCKDIAGRAM
1/25
CONNECTION DIAGRAM AND ORDERING NUMBERS (top view)
TO-220 & TO-220FP TO-3D2PAK
THERMAL DATA
Symbol Parameter D2PAK TO-220 TO-220FP TO-3 Unit
Rthj-case
Rthj-amb Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max 3
62.5 3
50 5
60 4
35
oC/W
oC/W
Type TO-220 D2PAK (*) TO-220FP TO-3 Output Voltage
L7805
L7805C
L7852C
L7806
L7806C
L7808
L7808C
L7885C
L7809C
L7812
L7812C
L7815
L7815C
L7818
L7818C
L7820
L7820C
L7824
L7824C
L7805CV
L7852CV
L7806CV
L7808CV
L7885CV
L7809CV
L7812CV
L7815CV
L7818CV
L7820CV
L7824CV
L7805CD2T
L7852CD2T
L7806CD2T
L7808CD2T
L7885CD2T
L7809CD2T
L7812CD2T
L7815CD2T
L7818CD2T
L7820CD2T
L7824CD2T
L7805CP
L7852CP
L7806CP
L7808CP
L7885CP
L7809CP
L7812CP
L7815CP
L7818CP
L7820CP
L7824CP
L7805T
L7805CT
L7852CT
L7806T
L7806CT
L7808T
L7808CT
L7885CT
L7809CT
L7812T
L7812CT
L7815T
L7815CT
L7818T
L7818CT
L7820T
L7820CT
L7824T
L7824CT
5V
5V
5.2V
6V
6V
8V
8V
8.5V
9V
12V
12V
15V
15V
18V
18V
20V
20V
24V
24V
(*) AVAILABLEIN TAPEAND REEL WITH ”-TR” SUFFIX
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
ViDC InputVoltage (for VO= 5 to 18V)
(forVO= 20,24V) 35
40 V
V
IoOutputCurrent Internally limited
Ptot Power Dissipation Internally limited
Top Operating Junction TemperatureRange (for L7800)
(for L7800C)-55 to 150
0to150
o
C
o
C
T
stg Storage Temperature Range -65 to 150 oC
L7800
2/25
APPLICATION CIRCUIT
SCHEMATIC DIAGRAM
L7800
3/25
TESTCIRCUITS
Figure 3 : RippleRejection.
Figure 2 : Load Regulation.Figure 1 : DC Parameter
L7800
4/25
ELECTRICAL CHARACTERISTICS FOR L7806(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 15V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C5.7566.25V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 9 to21 V 5.65 6 6.35 V
∆Vo* LineRegulation Vi= 8 to25 V Tj=25o
C
Vi= 9 to13 V Tj=25o
C60
30 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C100
30 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 9 to25 V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 0.7 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40µV/VO
SVR Supply Voltage Rejection Vi= 9 to19 V f = 120Hz 65 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 19 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
ELECTRICAL CHARACTERISTICS FOR L7805(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 10V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 4.855.2V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 8 to20 V 4.65 5 5.35 V
∆Vo* LineRegulation Vi= 7 to25 V Tj=25o
C
Vi= 8 to12 V Tj=25o
C3
150
25 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C100
25 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 8 to25 V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 0.6 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40
µ
V/VO
SVR Supply Voltage Rejection Vi= 8 to18 V f = 120Hz 68 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 17 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
5/25
ELECTRICAL CHARACTERISTICS FOR L7812(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 19V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 11.5 12 12.5 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 15.5to 27V 11.4 12 12.6 V
∆Vo* LineRegulation Vi= 14.5to 30V Tj=25o
C
Vi=16to22V T
j=25o
C120
60 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C100
60 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=15to30V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 1.5 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40µV/VO
SVR Supply Voltage Rejection Vi= 15 to 25 V f = 120 Hz 61 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 18 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
ELECTRICAL CHARACTERISTICS FOR L7808(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 14V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 7.788.3V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 11.5to 23V 7.688.4V
∆
V
o
* LineRegulation Vi= 10.5to 25V Tj=25o
C
Vi=11to17V T
j=25o
C80
40 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C100
40 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 11.5to 25V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40
µ
V/VO
SVR Supply Voltage Rejection Vi= 11.5to 21.5 V f =120 Hz 62 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 16 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
6/25
ELECTRICAL CHARACTERISTICS FOR L7818(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 26V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 17.3 18 18.7 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=22to33V 17.1 18 18.9 V
∆Vo* LineRegulation Vi=21to33V T
j=25o
C
Vi=24to30V T
j=25o
C180
90 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C180
90 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=22to33V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 2.3 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40µV/VO
SVR Supply Voltage Rejection Vi= 22 to 32 V f = 120 Hz 59 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 22 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
ELECTRICAL CHARACTERISTICS FOR L7815(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 23V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 14.4 15 15.6 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 18.5to 30V 14.25 15 15.75 V
∆Vo* LineRegulation Vi= 17.5to 30V Tj=25o
C
Vi=20to26V T
j=25o
C150
75 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C150
75 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 18.5to 30V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 1.8 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40
µ
V/VO
SVR Supply Voltage Rejection Vi= 18.5to 28.5 V f =120 Hz 60 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 19 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
7/25
ELECTRICAL CHARACTERISTICS FOR L7824(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 33V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 232425V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=28to38V 22.8 24 25.2 V
∆Vo* LineRegulation Vi=27to38V T
j=25o
C
Vi=30to36V T
j=25o
C240
120 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C240
120 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=28to38V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 3 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40µV/VO
SVR Supply Voltage Rejection Vi= 28 to 38 V f = 120 Hz 56 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 28 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
ELECTRICAL CHARACTERISTICS FOR L7820(refer to the test circuits, Tj= -55 to 150 oC,
Vi= 28V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 19.2 20 20.8 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=24to35V 19 20 21 V
∆Vo* LineRegulation Vi= 22.5to 35V Tj=25o
C
Vi=26to32V T
j=25o
C200
100 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C200
100 mV
mV
IdQuiescentCurrent Tj=25o
C6mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=24to35V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io=5mA 2.5 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40
µ
V/VO
SVR Supply Voltage Rejection Vi= 24 to 35 V f = 120 Hz 58 dB
VdDropout Voltage Io=1A T
j=25o
C22.5V
R
o
OutputResistance f = 1KHz 24 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C0.751.2A
I
scp Short Circuit Peak Current Tj=25o
C 1.3 2.2 3.3 A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
8/25
ELECTRICAL CHARACTERISTICS FOR L7852C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 10V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 5.0 5.2 5.4 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 8 to20 V 4.95 5.2 5.45 V
∆Vo* LineRegulation Vi= 7 to25 V Tj=25o
C
Vi= 8 to12 V Tj=25o
C3
1105
52 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C105
52 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 7 to25 V 1.3 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1.0 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C42µV
SVR Supply Voltage Rejection Vi= 8 to18 V f = 120Hz 61 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 17 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C750mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
ELECTRICAL CHARACTERISTICS FOR L7805C(refer to the test circuits, Tj= 0 to 125 oC,
Vi= 10V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 4.855.2V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 7 to20 V 4.75 5 5.25 V
∆Vo* LineRegulation Vi= 7 to25 V Tj=25o
C
Vi= 8 to12 V Tj=25o
C3
1100
50 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C100
50 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 7 to25 V 0.8 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1.1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C40
µ
V
SVR Supply Voltage Rejection Vi= 8 to18 V f = 120Hz 62 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 17 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C750mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
9/25
ELECTRICAL CHARACTERISTICS FOR L7808C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 14V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 7.788.3V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 10.5to 25V 7.688.4V
∆
V
o
* LineRegulation Vi= 10.5to 25V Tj=25o
C
Vi=11to17V T
j=25o
C160
80 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C160
80 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 10.5to 25V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -0.8 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C52µV
SVR Supply Voltage Rejection Vi= 11.5to 21.5 V f =120 Hz 56 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 16 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C450mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
ELECTRICAL CHARACTERISTICS FOR L7806C(refer to the test circuits, Tj= 0 to 125 oC,
Vi= 11V, Io= 500 mA, Ci=0.33 µF, Co=0.1 µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C5.7566.25V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 8 to21 V 5.766.3V
∆
V
o
* LineRegulation Vi= 8 to25 V Tj=25o
C
Vi= 9 to13 V Tj=25o
C120
60 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C120
60 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 8 to25 V 1.3 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -0.8 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C45
µ
V
SVR Supply Voltage Rejection Vi= 9 to19 V f = 120Hz 59 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 19 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C550mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
10/25
ELECTRICAL CHARACTERISTICS FOR L7809C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 15V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C8.6599.35V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 11.5to 26V 8.55 9 9.45 V
∆Vo* LineRegulation Vi= 11.5to 26V Tj=25o
C
Vi=12to18V T
j=25o
C180
90 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C180
90 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 11.5to 26V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1.0 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C70µV
SVR Supply Voltage Rejection Vi= 12 to 23 V f = 120 Hz 55 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 17 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C400mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
ELECTRICAL CHARACTERISTICS FOR L7885C(refer to the test circuits, Tj= 0 to 125 oC, Vi=
14.5V,Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 8.2 8.5 8.8 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=11to26V 8.1 8.5 8.9 V
∆Vo* LineRegulation Vi=11to27V T
j=25o
C
Vi= 11.5to 17.5 V Tj=25o
C160
80 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C160
80 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=11to27V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -0.8 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C55
µ
V
SVR Supply Voltage Rejection Vi= 12 to 22 V f = 120 Hz 56 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 16 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C450mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
11/25
ELECTRICAL CHARACTERISTICS FOR L7815C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 23V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 14.4 15 15.6 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 17.5to 30V 14.25 15 15.75 V
∆Vo* LineRegulation Vi= 17.5to 30V Tj=25o
C
Vi=20to26V T
j=25o
C300
150 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C300
150 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 17.5to 30V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C90µV
SVR Supply Voltage Rejection Vi= 18.5to 28.5 V f =120 Hz 54 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 19 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C230mA
I
scp Short Circuit Peak Current Tj=25o
C2.1A
ELECTRICAL CHARACTERISTICS FOR L7812C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 19V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 11.5 12 12.5 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi= 14.5to 27V 11.4 12 12.6 V
∆Vo* LineRegulation Vi= 14.5to 30V Tj=25o
C
Vi=16to22V T
j=25o
C240
120 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C240
120 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi= 14.5to 30V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C75
µ
V
SVR Supply Voltage Rejection Vi= 15 to 25 V f = 120 Hz 55 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 18 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C350mA
I
scp Short Circuit Peak Current Tj=25o
C2.2A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
12/25
ELECTRICAL CHARACTERISTICS FOR L7820C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 28V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 19.2 20 20.8 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=23to35V 19 20 21 V
∆Vo* LineRegulation Vi= 22.5to 35V Tj=25o
C
Vi=26to32V T
j=25o
C400
200 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C400
200 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆
I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=23to35V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C150µV
SVR Supply Voltage Rejection Vi= 24 to 35 V f = 120 Hz 52 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 24 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C180mA
I
scp Short Circuit Peak Current Tj=25o
C2.1A
ELECTRICAL CHARACTERISTICS FOR L7818C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 26V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 17.3 18 18.7 V
VoOutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=21to33V 17.1 18 18.9 V
∆Vo* LineRegulation Vi=21to33V T
j=25o
C
Vi=24to30V T
j=25o
C360
180 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C360
180 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=21to33V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C110
µ
V
SVR Supply Voltage Rejection Vi= 22 to 32 V f = 120 Hz 53 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 22 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C200mA
I
scp Short Circuit Peak Current Tj=25o
C2.1A
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
L7800
13/25
* Load and line regulation are specified at constant junction temperature. Changes in Vodue to heating effects must be taken into account
separately. Pulce testingwith low duty cycle is used.
ELECTRICAL CHARACTERISTICS FOR L7824C(refer to the test circuits, Tj= 0 to 125 oC, Vi= 33V,
Io= 500 mA, Ci= 0.33 µF, Co= 0.1 µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VoOutputVoltage Tj=25o
C 232425V
V
o
OutputVoltage Io= 5 mA to 1 A Po≤15W
Vi=27to38V 22.8 24 25.2 V
∆Vo* LineRegulation Vi=27to38V T
j=25o
C
Vi=30to36V T
j=25o
C480
240 mV
mV
∆Vo* LoadRegulation Io= 5 to 1500 mA Tj=25o
C
I
o= 250 to 750mA Tj=25o
C480
240 mV
mV
IdQuiescentCurrent Tj=25o
C8mA
∆I
d
QuiescentCurrent Change Io= 5 to 1000 mA 0.5 mA
∆IdQuiescentCurrent Change Vi=27to38V 1 mA
∆
V
o
∆
T
OutputVoltageDrift Io= 5 mA -1.5 mV/oC
eN OutputNoise Voltage B = 10Hz to 100KHz Tj=25o
C170
µ
V
SVR Supply Voltage Rejection Vi= 28 to 38 V f = 120 Hz 50 dB
VdDropout Voltage Io=1A T
j=25o
C2V
R
o
OutputResistance f = 1KHz 28 mΩ
Isc Short Circuit Current Vi=35V T
j=25o
C150mA
I
scp Short Circuit Peak Current Tj=25o
C2.1A
L7800
14/25
Figure 8 : Output Impedance vs. Frequency. Figure 9 : QuiescentCurrentvs. Junction
Temperature.
Figure 4 : DropoutVoltage vs. Junction
Temperature. Figure 5 : Peak Output Current vs. Input/output
DifferentialVoltage.
Figure 6 : SupplyVoltage Rejectionvs.
Frequency. Figure 7 : OutputVoltage vs. Junction
Temperature.
L7800
15/25
Figure 12 : QuiescentCurrent vs. Input
Voltage.
Figure 13 : Fixed OutputRegulator. Figure 14 : CurrentRegulator.
Figure 10 : Load TransientResponse. Figure 11 : Line TransientResponse.
NOTE:
1. To specify an output voltage, substitute voltage value for ”XX”.
2. Although no output capacitor is need for stability, it does
improve transientresponse.
3. Required if cregulator is locate an appreciable distance from
power supply filter.
IO=
V
XX
R
1+
I
d
L7800
16/25
Figure 15 : Circuit for IncreasingOutput
Voltage. Figure 16 : AdjustableOutput Regulator
(7 to 30V).
Figure 17 : 0.5 to 10V Regulator. Figure 18 : High Current VoltageRegulator.
IR1 ≥5I
d
V
O=
V
XX
(1+
R
2
R
1)+
I
d
R
2
VO =
V
XX
R
4
R
1
R1=
V
BEQ
1
I
REQ
−
I
Q
1
β
Q
1
IO=
I
REG
+
Q
1(
I
REG
−
V
BEQ
1
R
1)
L7800
17/25
Figure 19 : High Output Current with Short
CircuitProtection. Figure 20 : TrackingVoltageRegulator.
Figure 21 : Split PowerSupply(±15V – 1A). Figure 22 : NegativeOutput VoltageCircuit.
Figure 23 : Switching Regulator. Figure 24 : High InputVoltageCircuit.
VIN =V
i-(VZ+V
BE)
* Against potentiallatch-up problems.
RSC =
V
BEQ
2
I
SC
L7800
18/25
Figure 27 : High Input and Output Voltage. Figure 28 : ReducingPower Dissipation with
Dr opping Resistor.
Figure 29 : RemoteShutdown.
Figure 25 : High Input VoltageCircuit. Figure 26 : High Output Voltage Regulator.
VO=V
XX +V
Z1 R=
V
i
(
min
)−
V
XX
−
V
DROP
(
max
)
I
O
(
max
)+
I
d
(
max
)
L7800
19/25
Figure 30 : Power AM Modulator(unity voltage
gain,Io< 1A). Figure 31 : AdjustableOutput Voltage with
TemperatureCompensation.
NOTE: The circuitperforms well up to 100KHz NOTE: Q2is connected as a diode in order to compensate the
variation of the Q1VBE with the temperature. C allows a slow rise-
time of theVo
Figure 32 : Light Controllers(Vo min =V
xx +V
BE).
Figure 33 : Protectionagainst Input Short-circuit
withHigh CapacitanceLoads. Application with high capacitance loads and an output voltage
greater than 6 volts need an external diode (see fig.33) to protect
the deviceagainst input short circuit. In this case the input voltage
falls rapidly while the output voltage decrease slowly. The
capacitance dischrges by means of the Base-Emitter junction of
the series pass transistor in the regulator. If the energy is
sufficently high, the transistor may be destroyed. The external
diode by-passes the current from the IC toground.
VOfallswhen the lightgoes up VOrises when the lightgoes up
VO=
V
XX
(1+
R
2
R
1)+
V
BE
L7800
20/25
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 11.7 0.460
B 0.96 1.10 0.037 0.043
C 1.70 0.066
D 8.7 0.342
E 20.0 0.787
G 10.9 0.429
N 16.9 0.665
P 26.2 1.031
R 3.88 4.09 0.152 0.161
U 39.50 1.555
V 30.10 1.185
E
B
R
C
DA
P
G
N
V
U
O
P003N
TO-3 (R) MECHANICAL DATA
L7800
21/25
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409
L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.2 6.6 0.244 0.260
L9 3.5 3.93 0.137 0.154
DIA. 3.75 3.85 0.147 0.151
L6
A
C
D
E
D1
F
G
L7
L2
Dia.
F1
L5
L4
H2
L9
F2
G1
TO-220 MECHANICAL DATA
P011C
L7800
22/25
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.4 4.6 0.173 0.181
B 2.5 2.7 0.098 0.106
D 2.5 2.75 0.098 0.108
E 0.45 0.7 0.017 0.027
F 0.75 1 0.030 0.039
F1 1.15 1.7 0.045 0.067
F2 1.15 1.7 0.045 0.067
G 4.95 5.2 0.195 0.204
G1 2.4 2.7 0.094 0.106
H 10 10.4 0.393 0.409
L2 16 0.630
L3 28.6 30.6 1.126 1.204
L4 9.8 10.6 0.385 0.417
L6 15.9 16.4 0.626 0.645
L7 9 9.3 0.354 0.366
Ø 3 3.2 0.118 0.126
L2
A
B
D
E
H
G
L6
¯
F
L3
G1
123
F2
F1
L7
L4
P011G4/B
TO-220FP MECHANICAL DATA
L7800
23/25
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.4 4.6 0.173 0.181
A1 2.49 2.69 0.098 0.106
B 0.7 0.93 0.027 0.036
B2 1.14 1.7 0.044 0.067
C 0.45 0.6 0.017 0.023
C2 1.23 1.36 0.048 0.053
D 8.95 9.35 0.352 0.368
E 10 10.4 0.393 0.409
G 4.88 5.28 0.192 0.208
L 15 15.85 0.590 0.624
L2 1.27 1.4 0.050 0.055
L3 1.4 1.75 0.055 0.068
L2 L3
L
B2 B
G
E
A
C2
D
C
A1
DETAIL”A” DETAIL”A”
A2
P011P6/F
TO-263 (D2PAK) MECHANICALDATA
L7800
24/25
Information furnished isbelieved tobe accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implicationor otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject tochange without notice. Thispublication supersedes andreplaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in lifesupport devices or systems withoutexpress written approval of STMicroelectronics.
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.
L7800
25/25
