View LM78XX_728844.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
May 2006
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Features
Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24 Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection
General Description
The LM78XX series of three terminal positive regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating 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 adjustable voltages and currents.
Ordering Information
Product Number
LM7805CT LM7806CT LM7808CT LM7809CT LM7810CT LM7812CT LM7815CT LM7818CT LM7824CT LM7805ACT LM7806ACT LM7808ACT LM7809ACT LM7810ACT LM7812ACT LM7815ACT LM7818ACT LM7824ACT 2% 0C to +125C
Output Voltage Tolerance
4%
Package
TO-220
Operating Temperature
-40C to +125C
(c)2006 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Block Diagram
Input 1 Current Generator SOA Protection Series Pass Element Output 3
Starting Circuit
Reference Voltage
Error Amplifier
Thermal Protection GND 2
Figure 1.
Pin Assignment
TO-220
GND
1
1. Input 2. GND 3. Output
Figure 2.
Absolute Maximum Ratings
Absolute maximum ratings are those values beyond which damage to the device may occur. The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications.
Symbol
VI RJC RJA TOPR TSTG Input Voltage
Parameter
VO = 5V to 18V VO = 24V Thermal Resistance Junction-Cases (TO-220) Thermal Resistance Junction-Air (TO-220) Operating Temperature Range Storage Temperature Range LM78XX LM78XXA
Value
35 40 5 65 -40 to +125 0 to +125 -65 to +150
Unit
V V C/W C/W C
C
2
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7805)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 10V, CI = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 7V to 20V
Min.
4.8 4.75 - - - - - - - - - 62.0 - - - -
Typ.
5.0 5.0 4.0 1.6 9.0 4.0 5.0 0.03 0.3 -0.8 42.0 73.0 2.0 15.0 230 2.2
Max.
5.2 5.25 100 50.0 100 50.0 8.0 0.5 1.3 - - - - - - -
Unit
V
Regline
Line Regulation(1) Regulation(1)
TJ = +25C TJ = +25C TJ = +25C
VO = 7V to 25V VI = 8V to 12V IO = 5mA to 1.5A IO = 250mA to 750mA
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A VI = 7V to 25V Output Voltage Drift(2) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VO = 8V to 18V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C Output Noise Voltage Ripple Rejection(2) Resistance(2)
mV/C V/VO dB V m mA A
Dropout Voltage Output
Short Circuit Current Peak Current(2)
Notes: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2. These parameters, although guaranteed, are not 100% tested in production.
3 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7806) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 11V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 8.0V to 21V
Min
5.75 5.7 - - - - - - - - - 62.0 - - - -
Typ.
6.0 6.0 5.0 1.5 9.0 3.0 5.0 - - -0.8 45.0 73.0 2.0 19.0 250 2.2
Max.
6.25 6.3 120 60.0 120 60.0 8.0 0.5 1.3 - - - - - - -
Unit
V
Regline
Line Regulation(3) Regulation(3)
TJ = +25C TJ = +25C TJ = +25C
VI = 8V to 25V VI = 9V to 13V IO = 5mA to 1.5A IO = 250mA to 750mA
mV
Regload
Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current Quiescent Current Change Output Voltage Drift(4)
mA mA
IO = 5mA to 1A VI = 8V to 25V IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VO = 8V to 18V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(4) Resistance(4)
Dropout Voltage Output
Short Circuit Current Peak Current(4)
Notes: 3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4. These parameters, although guaranteed, are not 100% tested in production.
4 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7808) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 14V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 10.5V to 23V
Min.
7.7 7.6 - - - - - - - - - 56.0 - - - -
Typ.
8.0 8.0 5.0 2.0 10.0 5.0 5.0 0.05 0.5 -0.8 52.0 73.0 2.0 17.0 230 2.2
Max.
8.3 8.4 160 80.0 160 80.0 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(5) Regulation(5)
TJ = +25C TJ = +25C TJ = +25C
VI = 10.5V to 25V VI = 11.5V to 17V IO = 5mA to 1.5A IO = 250mA to 750mA
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current Quiescent Current Change Drift(6)
mA mA
IO = 5mA to 1A VI = 10.5V to 25V IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VO = 11.5V to 21.5V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
Output Voltage
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(6) Resistance(6)
Dropout Voltage Output
Short Circuit Current Peak Current(6)
Notes: 5. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6. These parameters, although guaranteed, are not 100% tested in production.
5 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7809) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 15V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C 5mA IO 1A, PO 15W, VI = 11.5V to 24V
Min.
8.65 8.6 - - - - - - - - - 56.0 - - - -
Typ.
9.0 9.0 6.0 2.0 12.0 4.0 5.0 - - -1.0 58.0 71.0 2.0 17.0 250 2.2
Max.
9.35 9.4 180 90.0 180 90.0 8.0 0.5 1.3 - - - - - - -
Unit
V
Regline
Line Regulation(7) Regulation(7)
TJ = +25C VI = 11.5V to 25V VI = 12V to 17V TJ = +25C IO = 5mA to 1.5A IO = 250mA to 750mA TJ = +25C VI = 11.5V to 26V
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A Output Voltage Drift(8) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VO = 13V to 23V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(8) Resistance(8)
Dropout Voltage Output
Short Circuit Current Peak Current(8)
Notes: 7. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8. These parameters, although guaranteed, are not 100% tested in production.
6 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7810) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 16V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 12.5V to 25V
Min.
9.6 9.5 - - - - - - - - - 56.0 - - - -
Typ.
10.0 10.0 10.0 3.0 12.0 4.0 5.1 - - -1.0 58.0 71.0 2.0 17.0 250 2.2
Max.
10.4 10.5 200 100 200 400 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(9)
TJ = +25C
VI = 12.5V to 25V VI = 13V to 25V
mV
Regload Load Regulation(9)
TJ = +25C
IO = 5mA to 1.5A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A VI = 12.5V to 29V
VO/T VN RR VDROP rO ISC IPK
Output Voltage Drift(10) Output Noise Voltage Ripple Rejection(10) Dropout Voltage Output Resistance(10) Short Circuit Current Peak Current(10)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VO = 13V to 23V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Notes: 9. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 10. These parameters, although guaranteed, are not 100% tested in production.
7 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7812) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 19V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C 5mA IO 1A, PO 15W, VI = 14.5V to 27V
Min.
11.5 11.4 - - - - - - - - - 55.0 - - - -
Typ.
12.0 12.0 10.0 3.0 11.0 5.0 5.1 0.1 0.5 -1.0 76.0 71.0 2.0 18.0 230 2.2
Max.
12.5 12.6 240 120 240 120 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(11) Regulation(11)
TJ = +25C VI = 14.5V to 30V VI = 16V to 22V TJ = +25C IO = 5mA to 1.5A IO = 250mA to 750mA TJ = +25C VI = 14.5V to 30V
mV
Regload
Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A Output Voltage Drift(12) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VI = 15V to 25V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(12) Resistance(12)
Dropout Voltage Output
Short Circuit Current Peak Current(12)
Notes: 11. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 12. These parameters, although guaranteed, are not 100% tested in production.
8 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7815) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 23V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 17.5V to 30V
Min.
14.4 14.25 - - - - - - - - - 54.0 - - - -
Typ.
15.0 15.0 11.0 3.0 12.0 4.0 5.2 - - -1.0 90.0 70.0 2.0 19.0 250 2.2
Max.
15.6 15.75 300 150 300 150 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(13) Regulation(13)
TJ = +25C VI = 17.5V to 30V VI = 20V to 26V TJ = +25C IO = 5mA to 1.5A IO = 250mA to 750mA TJ = +25C VI = 17.5V to 30V
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A Output Voltage Drift(14) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VI = 18.5V to 28.5V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(14) Resistance(14)
Dropout Voltage Output
Short Circuit Current Peak Current(14)
Notes: 13. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 14. These parameters, although guaranteed, are not 100% tested in production.
9 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7818) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 27V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 21V to 33V
Min.
17.3 17.1 - - - - - - - - - 53.0 - - - -
Typ.
18.0 18.0 15.0 5.0 15.0 5.0 5.2 - - -1.0 110 69.0 2.0 22.0 250 2.2
Max.
18.7 18.9 360 180 360 180 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(15) Regulation(15)
TJ = +25C VI = 21V to 33V VI = 24V to 30V TJ = +25C IO = 5mA to 1.5A IO = 250mA to 750mA TJ = +25C VI = 21V to 33V
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A Output Voltage Drift(16) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VI = 22V to 32V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(16) Resistance(16)
Dropout Voltage Output
Short Circuit Current Peak Current(16)
Notes: 15. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 16. These parameters, although guaranteed, are not 100% tested in production.
10 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7824) (Continued)
Refer to the test circuits. -40C < TJ < 125C, IO = 500mA, VI = 33V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
5mA IO 1A, PO 15W, VI = 27V to 38V
Min.
23.0 22.8 - - - - - - - - - 50.0 - - - -
Typ.
24.0 24.0 17.0 6.0 15.0 5.0 5.2 0.1 0.5 -1.5 60.0 67.0 2.0 28.0 230 2.2
Max.
25.0 25.25 480 240 480 240 8.0 0.5 1.0 - - - - - - -
Unit
V
Regline
Line Regulation(17) Regulation(17)
TJ = +25C TJ = +25C TJ = +25C
VI = 27V to 38V VI = 30V to 36V IO = 5mA to 1.5A IO = 250mA to 750mA
mV
Regload Load
mV
IQ IQ VO/T VN RR VDROP rO ISC IPK
Quiescent Current
mA mA
Quiescent Current Change IO = 5mA to 1A VI = 27V to 38V Output Voltage Drift(18) IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, VI = 28V to 38V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C Output Noise Voltage Ripple Rejection(18) Resistance(18)
mV/C V/VO dB V m mA A
Dropout Voltage Output
Short Circuit Current Peak Current(18)
Notes: 17. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 18. These parameters, although guaranteed, are not 100% tested in production.
11 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7805A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 10V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
IO = 5mA to 1A, PO 15W, VI = 7.5V to 20V
Min.
4.9 4.8 - -
Typ.
5.0 5.0 5.0 3.0 5.0 1.5 9.0 9.0 4.0 5.0 - - - -0.8 10.0 68.0 2.0 17.0 250 2.2
Max.
5.1 5.2 50.0 50.0 50.0 25.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Unit
V
Regline
Line Regulation(19)
VI = 7.5V to 25V, IO = 500mA VI = 8V to 12V TJ = +25C VI = 7.3V to 20V VI = 8V to 12V
mV
- - - - - - - - - - - - - - - -
Regload Load
Regulation(19)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current Quiescent Current Change
TJ = +25C IO = 5mA to 1A VI = 8V to 25V, IO = 500mA VI = 7.5V to 20V, TJ = +25C IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 8V to 18V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mA mA
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(20)
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(20) Resistance(20)
Dropout Voltage Output
Short Circuit Current Peak Current(20)
Notes: 19. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 20. These parameters, although guaranteed, are not 100% tested in production.
12 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7806A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 11V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
IO = 5mA to 1A, PO 15W, VI = 8.6V to 21V
Min.
5.58 5.76 - - - - - - - - - - - - - - - - - -
Typ.
6.0 6.0 5.0 3.0 5.0 1.5 9.0 9.0 5.0 4.3 - - - -0.8 10.0 65.0 2.0 17.0 250 2.2
Max.
6.12 6.24 60.0 60.0 60.0 30.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Unit
V
Regline
Line Regulation(21)
VI = 8.6V to 25V, IO = 500mA VI = 9V to 13V TJ = +25C VI = 8.3V to 21V VI = 9V to 13V
mV
Regload
Load
Regulation(21)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C VI = 19V to 25V, IO = 500mA VI = 8.5V to 21V, TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(22)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 9V to 19V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(22) Resistance(22)
Dropout Voltage Output
Short Circuit Current Peak Current(22)
Notes: 21. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 22. These parameters, although guaranteed, are not 100% tested in production.
13 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7808A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 14V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C IO = 5mA to 1A, PO 15W, VI = 10.6V to 23V
Min.
7.84 7.7 - - - - - - - - - - - - - - - - - -
Typ.
8.0 8.0 6.0 3.0 6.0 2.0 12.0 12.0 5.0 5.0 - - - -0.8 10.0 62.0 2.0 18.0 250 2.2
Max.
8.16 8.3 80.0 80.0 80.0 40.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Unit
V
Regline
Line Regulation(23)
VI = 10.6V to 25V, IO = 500mA VI = 11V to 17V TJ = +25C VI = 10.4V to 23V VI = 11V to 17V
mV
Regload
Load
Regulation(23)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C VI = 11V to 25V, IO = 500mA VI = 10.6V to 23V, TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(24)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 11.5V to 21.5V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(24)
Dropout Voltage Output Resistance(24)
Short Circuit Current Peak Current(24)
Notes: 23. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 24. These parameters, although guaranteed, are not 100% tested in production.
14 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7809A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 15V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C IO = 5mA to 1A, PO 15W, VI = 11.2V to 24V
Min.
8.82 8.65 - - - - - - - - - - - - - - - - - -
Typ.
9.0 9.0 6.0 4.0 6.0 2.0 12.0 12.0 5.0 5.0 - - - -1.0 10.0 62.0 2.0 17.0 250 2.2
Max.
9.16 9.35 90.0 45.0 90.0 45.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Units
V
Regline
Line Regulation(25)
VI = 11.7V to 25V, IO = 500mA VI = 12.5V to 19V TJ = +25C VI = 11.5V to 24V VI = 12.5V to 19V
mV
Regload
Load
Regulation(25)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A VI = 12V to 25V, IO = 500mA VI = 11.7V to 25V, TJ = +25C
VO/T VN RR VDROP rO ISC IPK
Output Voltage Drift(26) Output Noise Voltage Ripple Rejection(26) Dropout Voltage Output Resistance(26) Short Circuit Current Peak Current(26)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 12V to 22V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Notes: 25. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 26. These parameters, although guaranteed, are not 100% tested in production.
15 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7810A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 16V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
IO = 5mA to 1A, PO 15W, VI = 12.8V to 25V
Min.
9.8 9.6 - -
Typ.
10.0 10.0 8.0 4.0 8.0 3.0 12.0 12.0 5.0 5.0 - - - -1.0 10.0 62.0 2.0 17.0 250 2.2
Max.
10.2 10.4 100 50.0 100 50.0 100 100 50.0 6.0 0.5 0.8 0.5 - - - - - - -
Units
V
Regline
Line Regulation(27)
VI = 12.8V to 26V, IO = 500mA VI = 13V to 20V TJ = +25C VI = 12.5V to 25V VI = 13V to 20V
mV
- - - - - - - - - - - - - - - -
Regload
Load
Regulation(27)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current Quiescent Current Change
TJ = +25C IO = 5mA to 1A VI = 12.8V to 25V, IO = 500mA VI = 13V to 26V, TJ = +25C IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 14V to 24V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mA mA
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(28)
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(28) Resistance(28)
Dropout Voltage Output
Short Circuit Current Peak Current(28)
Notes: 27. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 28. These parameters, although guaranteed, are not 100% tested in production.
16 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7812A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 19V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C IO = 5mA to 1A, PO 15W, VI = 14.8V to 27V
Min.
11.75 11.5 - - - - - - - - - - - - - - - - - -
Typ.
12.0 12.0 10.0 4.0 10.0 3.0 12.0 12.0 5.0 5.1 - - - -1.0 10.0 60.0 2.0 18.0 250 2.2
Max.
12.25 12.5 120 120 120 60.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Units
V
Regline
Line Regulation(29)
VI = 14.8V to 30V, IO = 500mA VI = 16V to 22V TJ = +25C VI = 14.5V to 27V VI = 16V to 22V
mV
Regload
Load
Regulation(29)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C VI = 14V to 27V, IO = 500mA VI = 15V to 30V, TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(30)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 14V to 24V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(30)
Dropout Voltage Output Resistance(30)
Short Circuit Current Peak Current(30)
Note: 29. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 30. These parameters, although guaranteed, are not 100% tested in production.
17 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7815A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 23V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C IO = 5mA to 1A, PO 15W, VI = 17.7V to 30V
Min.
14.75 14.4 - - - - - - - - - - - - - - - - - -
Typ.
15.0 15.0 10.0 5.0 11.0 3.0 12.0 12.0 5.0 5.2 - - - -1.0 10.0 58.0 2.0 19.0 250 2.2
Max.
15.3 15.6 150 150 150 75.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Units
V
Regline
Line Regulation(31)
VI = 17.4V to 30V, IO = 500mA VI = 20V to 26V TJ = +25C VI = 17.5V to 30V VI = 20V to 26V
mV
Regload
Load
Regulation(31)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C VI = 17.5V to 30V, IO = 500mA VI = 17.5V to 30V, TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(32)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 18.5V to 28.5V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(32)
Dropout Voltage Output Resistance(32)
Short Circuit Current Peak Current(32)
Notes: 31. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 32. These parameters, although guaranteed, are not 100% tested in production.
18 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7818A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 27V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage
Conditions
TJ = +25C IO = 5mA to 1A, PO 15W, VI = 21V to 33V
Min.
17.64 17.3 - - - - - - - - - - - - - - - - - -
Typ.
18.0 18.0 15.0 5.0 15.0 5.0 15.0 15.0 7.0 5.2 - - - -1.0 10.0 57.0 2.0 19.0 250 2.2
Max.
18.36 18.7 180 180 180 90.0 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Units
V
Regline
Line Regulation(33)
VI = 21V to 33V, IO = 500mA VI = 21V to 33V TJ = +25C VI = 20.6V to 33V VI = 24V to 30V
mV
Regload
Load
Regulation(33)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current Quiescent Current Change
TJ = +25C IO = 5mA to 1A VI = 12V to 33V, IO = 500mA VI = 12V to 33V, TJ = +25C
mA mA
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(34)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 22V to 32V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(34)
Dropout Voltage Output Resistance(34)
Short Circuit Current Peak Current(34)
Notes: 33. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 34. These parameters, although guaranteed, are not 100% tested in production.
19 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (LM7824A) (Continued) Refer to the test circuits. 0C < TJ < 125C, IO = 1A, VI = 33V, CI = 0.33F, CO = 0.1F, unless otherwise specified.
Symbol
VO
Parameter
Output Voltage TJ = +25C
Conditions
IO = 5mA to 1A, PO 15W, VI = 27.3V to 38V
Min.
23.5 23.0 - -
Typ.
24.0 24.0 18.0 6.0 18.0 6.0 15.0 15.0 7.0 5.2 - - - -1.5 10.0 54.0 2.0 20.0 250 2.2
Max.
24.5 25.0 240 240 240 120 100 100 50.0 6.0 0.5 0.8 0.8 - - - - - - -
Units
V
Regline
Line Regulation(35)
VI = 27V to 38V, IO = 500mA VI = 21V to 33V TJ = +25C VI = 26.7V to 38V VI = 30V to 36V
mV
- - - - - - - - - - - - - - - -
Regload
Load
Regulation(35)
TJ = +25C, IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA
mV
IQ IQ
Quiescent Current
TJ = +25C VI = 27.3V to 38V, IO = 500mA VI = 27.3V to 38V, TJ = +25C
mA mA
Quiescent Current Change IO = 5mA to 1A
VO/T VN RR VDROP rO ISC IPK
Output Voltage
Drift(36)
IO = 5mA f = 10Hz to 100kHz, TA = +25C f = 120Hz, IO = 500mA, VI = 28V to 38V IO = 1A, TJ = +25C f = 1kHz VI = 35V, TA = +25C TJ = +25C
mV/C V/VO dB V m mA A
Output Noise Voltage Ripple Rejection(36)
Dropout Voltage Output Resistance(36)
Short Circuit Current Peak Current(36)
Notes: 35. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 36. These parameters, although guaranteed, are not 100% tested in production.
20 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Typical Performance Characteristics
6 5.75 5.5 5.25 5 4.75 4.5 -50
VI = 10V VO = 5V IO = 5mA
3 2.5 OUTPUT CURRENT (A) 2 1.5 1 .5 0
TJ = 25C VO = 100mV
QUIESCENT CURRENT (mA)
-25
0
25
50
75
100
125
0
5
10
15
20
25
30
35
JUNCTION TEMPERATURE (C)
INPUT-OUTPUT DIFFERENTIAL (V)
Figure 3. Quiescent Current
Figure 4. Peak Output Current
1.02 NORMALIZED OUTPUT VOLTAGE (V)
VI - VO = 5V IO = 5mA
7 6.5 6 5.5 5 4.5 4
TJ = 25C VO = 5V IO = 10mA
1.01
1
0.99
0.98 -50
-25
0
25
50
75
100
125
QUIESCENT CURRENT (mA)
5
10
15
20
25
30
35
JUNCTION TEMPERATURE (C)
INPUT VOLTAGE (V)
Figure 5. Output Voltage
Figure 6. Quiescent Current
21 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Typical Applications
1
Input CI
0.33F
LM78XX
2
3
Output CO
0.1F
Figure 7. DC Parameters
1 Input
LM78XX
2
3 Output RL 270pF VO 0V 30S
0.33F
2N6121 or EQ
VO 100
Figure 8. Load Regulation
5.1 Input
1
LM78XX
2
3 Output
0.33F
RL
470F 120Hz +
Figure 9. Ripple Rejection
22 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
1
Input CI
0.33F
LM78XX
2
3
Output CO
0.1F
Figure 10. Fixed Output Regulator
1
Input CI
0.33F
LM78XX
2
3
Output
0.1F
CO
V XX R1 IO RL
IQ
V XX IO = + R1 IQ
Notes: 1. To specify an output voltage, substitute voltage value for "XX." A common ground is required between the input and the output voltage. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage. 2. CI is required if regulator is located an appreciable distance from power supply filter. 3. CO improves stability and transient response.
Figure 11.
1
Input CI
0.33F
LM78XX
2
3
Output V XX
CO IQ
0.1F
R1
R2
IRI 5 IQ VO = VXX(1 + R2 / R1) + IQR2
Figure 12. Circuit for Increasing Output Voltage
23 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Input
1
LM7805
2
3
Output
CI
0.33F
6
-2 LM741 +3 4
CO 10k
0.1F
IRI 5 IQ VO = VXX(1 + R2 / R1) + IQR2
Figure 13. Adjustable Output Regulator (7V to 30V)
Input
Q1 BD536
IQ1 R1 3 V BEQ1 IREG-IQ1 BQ1 IREG 0.33F 1 3 IO 2 0.1F Output
LM78XX
R1 =
IO = IREG + BQ1 (IREG-VBEQ1/R1)
Figure 14. High Current Voltage Regulator
Q1
Input
RSC
Q2 R1 3 Q1 = TIP42 Q2 = TIP42 RSC = V BEQ2 I SC 0.33F 2 0.1F 1
LM78XX
3
Output
Figure 15. High Output Current with Short Circuit Protection
24
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
1 VI
LM78XX
2
3 VO
0.33F
0.1F
4.7k
COMMON 6
7
_
2
COMMON
LM741 4
+
3
4.7k
-VIN
TIP42
-VO
Figure 16. Tracking Voltage Regulator
1 +20V 0.33F
LM7815
2
3 +15V 0.1F 1N4001
+
2.2F 1F + 1 2 1N4001 3 -15V
-20V
MC7915
Figure 17. Split Power Supply (15V - 1A)
25
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Output Input + 0.1F 2 1
LM78XX
3
Figure 18. Negative Output Voltage Circuit
Input
D45H11
1mH
Output
4.7 Z1
470
1
LM78XX
2
3
+ 10F 0.5
0.33F
+ 2000F
Figure 19. Switching Regulator
26
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
Mechanical Dimensions
Dimensions in millimeters
TO-220
9.90 0.20 4.50 0.20
1.30 0.10
2.80 0.10
(8.70) o3.60 0.10
(1.70)
1.30 -0.05
+0.10
9.20 0.20
(1.46)
13.08 0.20
(1.00)
(3.00)
15.90 0.20
1.27 0.10
1.52 0.10
0.80 0.10 2.54TYP [2.54 0.20] 2.54TYP [2.54 0.20]
10.08 0.30
18.95MAX.
(3.70)
(45 )
0.50 -0.05
+0.10
2.40 0.20
10.00 0.20
27
www.fairchildsemi.com
LM78XX/LM78XXA Rev. 1.0.1
LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACExTM FAST(R) FASTrTM ActiveArrayTM FPSTM BottomlessTM FRFETTM Build it NowTM GlobalOptoisolatorTM CoolFETTM GTOTM CROSSVOLTTM HiSeCTM DOMETM I2CTM EcoSPARKTM i-LoTM E2CMOSTM ImpliedDisconnectTM EnSignaTM IntelliMAXTM FACTTM FACT Quiet SeriesTM Across the board. Around the world.TM The Power Franchise(R) Programmable Active DroopTM ISOPLANARTM LittleFETTM MICROCOUPLERTM MicroFETTM MicroPakTM MICROWIRETM MSXTM MSXProTM OCXTM OCXProTM OPTOLOGIC(R) OPTOPLANARTM PACMANTM POPTM Power247TM PowerEdgeTM PowerSaverTM PowerTrench(R) QFET(R) QSTM QT OptoelectronicsTM Quiet SeriesTM RapidConfigureTM RapidConnectTM SerDesTM ScalarPumpTM SILENT SWITCHER(R) SMART STARTTM SPMTM StealthTM SuperFETTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 SyncFETTM TCMTM TinyLogic(R) TINYOPTOTM TruTranslationTM UHCTM UniFETTM UltraFET(R) VCXTM WireTM
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILDiS WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILDiS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) 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.
2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS Definition of Terms
Datasheet Identification Advance Information Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.
Rev. I19
Preliminary
No Identification Needed
Full Production
Obsolete
Not In Production
28 LM78XX/LM78XXA Rev. 1.0.1
www.fairchildsemi.com

▲Up To Search▲

Price & Availability of LM78XX

	To Download LM78XX Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .