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MC78XX/LM78XX/MC78XXA
3-Terminal 1A Positive Voltage Regulator
Features
* * * * * Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection
Description
The MC78XX/LM78XX/MC78XXA series of three terminal positive regulators are available in the TO-220/D-PAK 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.
TO-220
1 D-PAK
1 1. Input 2. GND 3. Output
Internal Block Digram
Rev. 1.0.1
(c)2001 Fairchild Semiconductor Corporation
MC78XX/LM78XX/MC78XXA
Absolute Maximum Ratings
Parameter Input Voltage (for VO = 5V to 18V) (for VO = 24V) Thermal Resistance Junction-Cases (TO-220) Thermal Resistance Junction-Air (TO-220) Operating Temperature Range Storage Temperature Range Symbol VI VI RJC RJA TOPR TSTG Value 35 40 5 65 0 ~ +125 -65 ~ +150
o
Unit V V C/W
o o oC/W
C C
Electrical Characteristics (MC7805/LM7805)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI = 10V, CI= 0.33F, CO= 0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA Io 1.0A, PO 15W VI = 7V to 20V TJ=+25 oC VO = 7V to 25V VI = 8V to 12V IO = 5.0mA to1.5A Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ IQ VO/T VN RR VDrop rO ISC IPK TJ=+25 oC TJ =+25 oC IO = 5mA to 1.0A VI= 7V to 25V IO= 5mA f = 10Hz to 100KHz, TA=+25 oC f = 120Hz VO = 8V to 18V IO = 1A, TJ =+25 oC f = 1KHz VI = 35V, TA =+25 TJ =+25 C
o oC
Conditions
MC7805/LM7805 Min. 4.8 4.75 62 Typ. 5.0 5.0 4.0 1.6 9 4 5.0 0.03 0.3 -0.8 42 73 2 15 230 2.2 Max. 5.2 5.25 100 50 100 50 8.0 0.5 1.3 -
Unit
V mV
Line Regulation (Note1)
Regline
IO =250mA to 750mA
mV mA mA mV/ oC V/Vo dB V m mA A
Note: 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
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7806)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =11V, CI= 0.33F, CO= 0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO 1.0A, PO 15W VI = 8.0V to 21V TJ =+25 oC TJ =+25 oC TJ =+25 oC IO = 5mA to 1A VI = 8V to 25V IO = 5mA f = 10Hz to 100KHz, TA =+25 oC f = 120Hz VI = 9V to 19V IO = 1A, TJ =+25 oC f = 1KHz VI= 35V, TA TJ =+25 oC =+25 oC VI = 8V to 25V VI = 9V to 13V IO =5mA to 1.5A IO =250mA to750A Conditions MC7806 Min. 5.75 5.7 59 Typ. 6.0 6.0 5 1.5 9 3 5.0 -0.8 45 75 2 19 250 2.2 Max. 6.25 6.3 120 60 120 60 8.0 0.5 1.3 V mV mV mA mA mV/ oC V/Vo dB V m mA A Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline Regload IQ IQ VO/T VN RR VDrop rO ISC IPK
Note: 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.
3
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7808)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =14V, CI= 0.33F, CO= 0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO 1.0A, PO 15W VI = 10.5V to 23V TJ =+25 oC TJ =+25 oC TJ =+25 oC IO = 5mA to 1.0A VI = 10.5A to 25V IO = 5mA f = 10Hz to 100KHz, TA =+25 oC f = 120Hz, VI= 11.5V to 21.5V IO = 1A, TJ=+25 C f = 1KHz VI= 35V, TA TJ =+25 C
o o
Conditions
MC7808 Min. 7.7 7.6 56 Typ. Max. 8.0 8.0 5.0 2.0 10 5.0 5.0 0.05 0.5 -0.8 52 73 2 17 230 2.2 8.3 8.4 160 80 160 80 8.0 0.5 1.0 -
Unit
V mV mV mA mA mV/ oC V/Vo dB V m mA A
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline Regload IQ IQ VO/T VN RR VDrop rO ISC IPK
VI = 10.5V to 25V VI = 11.5V to 17V IO = 5.0mA to 1.5A IO= 250mA to 750mA
=+25 oC
Note: 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.
4
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7809)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =15V, CI= 0.33F, CO= 0.1F, unless otherwise specified) Parameter Symbol TJ =+25C Output Voltage VO 5.0mA IO 1.0A, PO 15W VI= 11.5V to 24V TJ=+25C TJ=+25C TJ=+25C IO = 5mA to 1.0A VI = 11.5V to 26V IO = 5mA f = 10Hz to 100KHz, TA =+25 C f = 120Hz VI = 13V to 23V IO = 1A, TJ=+25C f = 1KHz VI= 35V, TA =+25C TJ= +25C VI = 11.5V to 25V VI = 12V to 17V IO = 5mA to 1.5A IO = 250mA to 750mA Conditions MC7809 Min. 8.65 8.6 56 Typ. 9 9 6 2 12 4 5.0 -1 58 71 2 17 250 2.2 Max. 9.35 9.4 180 90 180 90 8.0 0.5 1.3 V mV mV mA mA mV/ C V/Vo dB V m mA A Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline Regload IQ IQ VO/T VN RR VDrop rO ISC IPK
Note: 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.
5
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7810)
(Refer to test circuit ,0C< TJ < 125C, IO = 500mA, VI =16V, CI= 0.33F, CO=0.1F, unless otherwise specified) Parameter Symbol TJ =+25 C Output Voltage VO 5.0mA IO1.0A, PO 15W VI = 12.5V to 25V TJ =+25C TJ =+25C TJ =+25C IO = 5mA to 1.0A VI = 12.5V to 29V IO = 5mA f = 10Hz to 100KHz, TA =+25 C f = 120Hz VI = 13V to 23V IO = 1A, TJ=+25 C f = 1KHz VI = 35V, TA=+25 C TJ =+25 C VI = 12.5V to 25V VI = 13V to 25V IO = 5mA to 1.5A IO = 250mA to 750mA Conditions MC7810 Min. 9.6 9.5 56 Typ. 10 10 10 3 12 4 5.1 -1 58 71 2 17 250 2.2 Max. 10.4 10.5 200 100 200 400 8.0 0.5 1.0 V mV mV mA mA mV/C V/Vo dB V m mA A Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline Regload IQ IQ VO/T VN RR VDrop rO ISC IPK
Note: 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.
6
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7812)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =19V, CI= 0.33F, CO=0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO1.0A, PO15W VI = 14.5V to 27V TJ =+25 oC VI = 14.5V to 30V VI = 16V to 22V IO = 5mA to 1.5A IO = 250mA to 750mA Conditions MC7812 Min. 11.5 11.4 55 =+25 oC Typ. Max. 12 12 10 3.0 11 5.0 5.1 0.1 0.5 -1 76 71 2 18 230 2.2 12.5 12.6 240 120 240 120 8.0 0.5 1.0 V mV mV mA mA mV/ oC V/Vo dB V m mA A Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline
Regload TJ =+25 oC IQ IQ VO/T VN RR VDrop rO ISC IPK TJ =+25 oC IO = 5mA to 1.0A VI = 14.5V to 30V IO = 5mA
f = 10Hz to 100KHz, TA =+25 oC f = 120Hz VI = 15V to 25V IO = 1A, TJ=+25 oC f = 1KHz VI = 35V, TA TJ = +25 oC
Note: 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.
7
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7815)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =23V, CI= 0.33F, CO=0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO 1.0A, PO 15W VI = 17.5V to 30V TJ =+25 oC VI = 17.5V to 30V VI = 20V to 26V IO = 5mA to 1.5A Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ IQ VO/T VN RR VDrop rO ISC IPK TJ =+25 oC TJ =+25 oC IO = 5mA to 1.0A VI = 17.5V to 30V IO = 5mA f = 10Hz to 100KHz, TA =+25 C f = 120Hz VI = 18.5V to 28.5V IO = 1A, TJ=+25 oC f = 1KHz VI = 35V, TA=+25 oC TJ =+25 C
o o
Conditions
MC7815 Min. 14.4 14.25 54 Typ. 15 15 11 3 12 4 5.2 -1 90 70 2 19 250 2.2 Max. 15.6 15.75 300 150 300 150 8.0 0.5 1.0 -
Unit
V mV
Line Regulation (Note1)
Regline
IO = 250mA to 750mA
mV mA mA mV/ oC V/Vo dB V m mA A
Note: 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.
8
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7818)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =27V, CI= 0.33F, CO=0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO 1.0A, PO 15W VI = 21V to 33V TJ =+25 oC VI = 21V to 33V VI = 24V to 30V IO = 5mA to 1.5A IO = 250mA to 750mA Conditions MC7818 Min. 17.3 17.1 53 =+25 oC Typ. Max. 18 18 15 5 15 5.0 5.2 -1 110 69 2 22 250 2.2 18.7 18.9 360 180 360 180 8.0 0.5 1 V mV mV mA mA mV/ oC V/Vo dB V m mA A Unit
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline
Regload TJ =+25 oC IQ IQ VO/T VN RR VDrop rO ISC IPK TJ =+25 oC IO = 5mA to 1.0A VI = 21V to 33V IO = 5mA
f = 10Hz to 100KHz, TA =+25 oC f = 120Hz VI = 22V to 32V IO = 1A, TJ=+25 oC f = 1KHz VI = 35V, TA TJ =+25 oC
Note: 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.
9
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7824)
(Refer to test circuit ,0C < TJ < 125C, IO = 500mA, VI =33V, CI= 0.33F, CO=0.1F, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA IO 1.0A, PO 15W VI = 27V to 38V TJ =+25 oC TJ =+25 oC TJ =+25 oC IO = 5mA to 1.0A VI = 27V to 38V IO = 5mA f = 10Hz to 100KHz, TA =+25 oC f = 120Hz VI = 28V to 38V IO = 1A, TJ=+25 oC f = 1KHz VI = 35V, TA=+25 TJ =+25 oC
oC
Conditions
MC7824 Min. 23 22.8 50 Typ. Max. 24 24 17 6 15 5.0 5.2 0.1 0.5 -1.5 60 67 2 28 230 2.2 25 25.25 480 240 480 240 8.0 0.5 1 -
Unit
V mV mV mA mA mV/ oC V/Vo dB V m mA A
Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
Regline Regload IQ IQ VO/T VN RR VDrop rO ISC IPK
VI = 27V to 38V VI = 30V to 36V IO = 5mA to 1.5A IO = 250mA to 750mA
Note: 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.
10
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7805A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 10V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ =+25 VO Conditions
oC
Min. 4.9 4.8 -
Typ. 5 5 5 3 5 1.5 9 9 4 5.0 -0.8 10 68 2 17 250 2.2
Max. 5.1 5.2 50 50 50 25 100 100 50 6 0.5 0.8 0.8 -
Unit V
IO = 5mA to 1A, PO 15W VI = 7.5V to 20V VI = 7.5V to 25V IO = 500mA
Line Regulation (Note1)
Regline
VI = 8V to 12V TJ =+25 oC VI= 7.3V to 20V VI= 8V to 12V
mV
-
Load Regulation (Note1)
Regload
TJ =+25 oC IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA TJ =+25
oC
mV
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
mA mA mV/ oC V/Vo dB V m mA A
IO = 5mA to 1A VI = 8 V to 25V, IO = 500mA VI = 7.5V to 20V, TJ =+25 Io = 5mA f = 10Hz to 100KHz TA =+25 oC f = 120Hz, IO = 500mA VI = 8V to 18V IO = 1A, TJ =+25 oC f = 1KHz VI= 35V, TA TJ= +25 oC =+25 oC
oC
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
11
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7806A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I =11V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ =+25 VO Conditions
oC
Min. 5.58 5.76 -
Typ. 6 6 5 3 5 1.5 9 4 5.0 4.3 -0.8 10 65 2 17 250 2.2
Max. 6.12 6.24 60 60 60 30 100 100 50 6 0.5 0.8 0.8 -
Unit V
IO = 5mA to 1A, PO 15W VI = 8.6V to 21V VI= 8.6V to 25V IO = 500mA
Line Regulation (Note1)
Regline
VI= 9V to 13V TJ =+25 oC VI= 8.3V to 21V VI= 9V to 13V
mV
-
Load Regulation (Note1)
Regload
TJ =+25 oC IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA TJ =+25
oC
mV
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
mA mA mV/ oC V/Vo dB V m mA A
IO = 5mA to 1A VI = 9V to 25V, IO = 500mA VI= 8.5V to 21V, TJ IO = 5mA f = 10Hz to 100KHz TA =+25 oC f = 120Hz, IO = 500mA VI = 9V to 19V IO = 1A, TJ =+25 oC f = 1KHz VI= 35V, TA TJ=+25 oC =+25 oC =+25 oC
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
12
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7808A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 14V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol
o
Conditions TJ =+25 C IO = 5mA to 1A, PO 15W VI = 10.6V to 23V VI= 10.6V to 25V IO = 500mA
Min. 7.84 7.7 -
Typ. 8 8 6 3 6 2 12 12 5 5.0 -0.8 10 62 2 18 250 2.2
Max. 8.16 8.3 80 80 80 40 100 100 50 6 0.5 0.8 0.8 -
Unit V
VO
Line Regulation (Note1)
Regline
VI= 11V to 17V TJ =+25 oC
o
mV
VI= 10.4V to 23V VI= 11V to 17V
-
Load Regulation (Note1)
Regload
TJ =+25 C IO = 5mA to 1.5A IO = 5mA to 1A IO = 250mA to 750mA TJ =+25 C IO = 5mA to 1A VI = 11V to 25V, IO = 500mA VI= 10.6V to 23V, TJ =+25 C
o o
mV
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
mA mA mV/ oC V/Vo dB V m mA A
IO = 5mA f = 10Hz to 100KHz TA =+25 oC f = 120Hz, IO = 500mA VI = 11.5V to 21.5V IO = 1A, TJ =+25 oC f = 1KHz VI= 35V, TA =+25 oC TJ=+25 C
o
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
13
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7809A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 15V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO =+25C Conditions IO = 5mA to 1A, PO15W VI = 11.2V to 24V VI= 11.7V to 25V IO = 500mA Line Regulation (Note1) Regline VI= 12.5V to 19V TJ =+25C VI= 11.5V to 24V VI= 12.5V to 19V Min. 8.82 8.65 =+25 C Typ. 9.0 9.0 6 4 6 2 12 12 5 5.0 -1.0 10 62 2.0 17 250 2.2 Max. 9.18 9.35 90 45 90 45 100 100 50 6.0 0.8 0.8 0.5 mV/ C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25C IO = 5mA to 1.0A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25 C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 11.7V to 25V, TJ=+25 C VI = 12V to 25V, IO = 500mA IO = 5mA to 1.0A IO = 5mA f = 10Hz to 100KHz TA =+25 C f = 120Hz, IO = 500mA VI = 12V to 22V IO = 1A, TJ =+25 C f = 1KHz VI= 35V, TA TJ=+25C
Note: 1. Load and line regulation are specified at constant, junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
14
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7810A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 16V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO =+25C Conditions IO = 5mA to 1A, PO 15W VI =12.8V to 25V VI= 12.8V to 26V IO = 500mA Line Regulation (Note1) Regline VI= 13V to 20V TJ =+25 C VI= 12.5V to 25V VI= 13V to 20V Min. 9.8 9.6 =+25 C Typ. 10 10 8 4 8 3 12 12 5 5.0 -1.0 10 62 2.0 17 250 2.2 Max. 10.2 10.4 100 50 100 50 100 100 50 6.0 0.5 0.8 0.5 mV/ C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25 C IO = 5mA to 1.5A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25 C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 13V to 26V, TJ=+25 C VI = 12.8V to 25V, IO = 500mA IO = 5mA to 1.0A IO = 5mA f = 10Hz to 100KHz TA =+25 C f = 120Hz, IO = 500mA VI = 14V to 24V IO = 1A, TJ =+25C f = 1KHz VI= 35V, TA TJ=+25 C
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
15
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7812A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 19V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO Conditions =+25 C IO = 5mA to 1A, PO 15W VI = 14.8V to 27V VI= 14.8V to 30V IO = 500mA Line Regulation (Note1) Regline VI= 16V to 22V TJ =+25 C VI= 14.5V to 27V VI= 16V to 22V Min. 11.75 11.5 =+25 C -1.0 10 60 2.0 18 250 2.2 Typ. 12 12 10 4 10 3 12 12 5 5.1 Max. 12.25 12.5 120 120 120 60 100 100 50 6.0 0.8 0.8 0.5 mV/C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25 C IO = 5mA to 1.5A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 15V to 30V, TJ=+25 C VI = 14V to 27V, IO = 500mA IO = 5mA to 1.0A 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 TJ=+25 C
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
16
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7815A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I =23V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO Conditions =+25 C IO = 5mA to 1A, PO 15W VI = 17.7V to 30V VI= 17.9V to 30V IO = 500mA Line Regulation (Note1) Regline VI= 20V to 26V TJ =+25C VI= 17.5V to 30V VI= 20V to 26V Min. 14.7 14.4 =+25 C Typ. 15 15 10 5 11 3 12 12 5 5.2 -1.0 10 58 2.0 19 250 2.2 Max. 15.3 15.6 150 150 150 75 100 100 50 6.0 0.8 0.8 0.5 mV/C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25 C IO = 5mA to 1.5A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25 C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 17.5V to 30V, TJ =+25 C VI = 17.5V to 30V, IO = 500mA IO = 5mA to 1.0A IO = 5mA f = 10Hz to 100KHz TA =+25 C f = 120Hz, IO = 500mA VI = 18.5V to 28.5V IO = 1A, TJ =+25 C f = 1KHz VI= 35V, TA TJ=+25C
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
17
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7818A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 27V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO Conditions =+25 C IO = 5mA to 1A, PO 15W VI = 21V to 33V VI= 21V to 33V IO = 500mA Line Regulation (Note1) Regline VI= 21V to 33V TJ =+25 C VI= 20.6V to 33V VI= 24V to 30V Min. 17.64 17.3 =+25C Typ. 18 18 15 5 15 5 15 15 7 5.2 -1.0 10 57 2.0 19 250 2.2 Max. 18.36 18.7 180 180 180 90 100 100 50 6.0 0.8 0.8 0.5 mV/ C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25C IO = 5mA to 1.5A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25 C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 21V to 33V, TJ=+25 C VI = 21V to 33V, IO = 500mA IO = 5mA to 1.0A 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 TJ=+25 C
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
18
MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7824A)
(Refer to the test circuits. 0C < TJ < 125C, Io =1A, V I = 33V, C I=0.33F, C O=0.1F, unless otherwise specified) Parameter Output Voltage Symbol TJ VO Conditions =+25 C IO = 5mA to 1A, PO 15W VI = 27.3V to 38V VI= 27V to 38V IO = 500mA Line Regulation (Note1) Regline VI= 21V to 33V TJ =+25 C VI= 26.7V to 38V VI= 30V to 36V Min. 23.5 23 =+25 C Typ. 24 24 18 6 18 6 15 15 7 5.2 -1.5 10 54 2.0 20 250 2.2 Max. 24.5 25 240 240 240 120 100 100 50 6.0 0.8 0.8 0.5 mV/ C V/Vo dB V m mA A mA mA mV mV V Unit
Load Regulation (Note1)
Regload
TJ =+25 C IO = 5mA to 1.5A IO = 5mA to 1.0A IO = 250mA to 750mA TJ =+25 C
Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current
IQ IQ V/T VN RR VDrop rO ISC IPK
VI = 27.3V to 38V, TJ =+25 C VI = 27.3V to 38V, IO = 500mA IO = 5mA to 1.0A IO = 5mA f = 10Hz to 100KHz TA = 25 C f = 120Hz, IO = 500mA VI = 28V to 38V IO = 1A, TJ =+25 C f = 1KHz VI= 35V, TA TJ=+25 C
Note: 1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used.
19
MC78XX/LM78XX/MC78XXA
Typical Perfomance Characteristics
I
Figure 1. Quiescent Current
Figure 2. Peak Output Current
Figure 3. Output Voltage
Figure 4. Quiescent Current
20
MC78XX/LM78XX/MC78XXA
Typical Applications
MC78XX/LM78XX Input Output
Figure 5. DC Parameters
MC78XX/LM78XX Input Output
Figure 6. Load Regulation
MC78XX/LM78XX Input Output
Figure 7. Ripple Rejection
Input
MC78XX/LM78XX
Output
Figure 8. Fixed Output Regulator
21
MC78XX/LM78XX/MC78XXA
Input CI
MC78XX/LM78XX
Output
Co
Figure 9. Constant Current Regulator 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.
Input MC78XX/LM78XX CI Co
Output
I RI 5IQ VO = VXX(1+R2/R1)+IQR2 Figure 10. Circuit for Increasing Output Voltage
Input
MC7805 LM7805
Output
CI
LM741 Co
IRI 5 IQ VO = VXX(1+R2/R1)+IQR2 Figure 11. Adjustable Output Regulator (7 to 30V)
22
MC78XX/LM78XX/MC78XXA
Input
Output MC78XX/LM78XX
Figure 12. High Current Voltage Regulator
Input
MC78XX/LM78XX
Output
Figure 13. High Output Current with Short Circuit Protection
MC78XX/LM78XX
LM741
Figure 14. Tracking Voltage Regulator
23
MC78XX/LM78XX/MC78XXA
MC7815
MC7915
Figure 15. Split Power Supply ( 15V-1A)
Output Input
MC78XX/LM78XX
Figure 16. Negative Output Voltage Circuit
Input
Output
MC78XX/LM78XX
Figure 17. Switching Regulator
24
MC78XX/LM78XX/MC78XXA
Mechanical Dimensions
Package
TO-220
9.90 0.20 1.30 0.10 2.80 0.10 (8.70) o3.60 0.10 (1.70) 4.50 0.20
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
25
MC78XX/LM78XX/MC78XXA
Mechancal Dimensions (Continued)
Package
D-PAK
6.60 0.20 5.34 0.30 (0.50) (4.34) (0.50) 0.70 0.20 2.30 0.10 0.50 0.10
0.60 0.20
6.10 0.20
2.70 0.20
9.50 0.30
0.91 0.10
0.80 0.20
MAX0.96 2.30TYP [2.300.20]
0.76 0.10 2.30TYP [2.300.20]
0.89 0.10
0.50 0.10 1.02 0.20 2.30 0.20
(0.70)
(0.90) (0.10) (3.05)
6.10 0.20
9.50 0.30
2.70 0.20
(2XR0.25)
0.76 0.10
26
(1.00)
6.60 0.20 (5.34) (5.04) (1.50)
MIN0.55
MC78XX/LM78XX/MC78XXA
Ordering Information
Product Number LM7805CT Output Voltage Tolerance 4% Package TO-220 Operating Temperature 0 ~ + 125C
Product Number MC7805CT MC7806CT MC7808CT MC7809CT MC7810CT MC7812CT MC7815CT MC7818CT MC7824CT MC7805CDT MC7806CDT MC7808CDT MC7809CDT MC7810CDT MC7812CDT MC7805ACT MC7806ACT MC7808ACT MC7809ACT MC7810ACT MC7812ACT MC7815ACT MC7818ACT MC7824ACT
Output Voltage Tolerance
Package
Operating Temperature
TO-220
4%
D-PAK
0 ~ + 125C
2%
TO-220
27
MC78XX/LM78XX/MC78XXA
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. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT 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, and (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 a significant injury of the user.
www.fairchildsemi.com 7/2/01 0.0m 001 Stock#DSxxxxxxxx 2001 Fairchild Semiconductor Corporation
2. A critical component in 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.

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