©2009 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulat
Sep 2009
KA78XXE/KA78XXAE
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 KA78XXE/KA78XXAE series of three-terminal posi-
tive regulator are available in the TO-220/D-PAK package
and with several fixed output voltages, making them use-
ful in a wide range of applications. Each type employs
internal current limiting, thermal shut down and safe
operating area protection, making it essentially inde-
structible. If adequate heat sinking is provided, they can
deliver over 1A output current. Although designed pri-
marily as fixed voltage regulators, these devices can be
used with external components to obtain adjustable volt-
ages and currents.
Ordering Information
Part Number Output Voltage Tolerance Package Operating Temperature
KA7805E / KA7806E
±
4% TO-220 0 to +125
°
C
KA7808E / KA7809E
KA7810E
KA7812E / KA7815E
KA7818E / KA7824E
KA7805AE / KA7806AE
±
2%
KA7808AE / KA7809AE
KA7810AE
KA7812AE/KA7815AE
KA7818AE/KA7824AE
KA7805ER / KA7806ER
±
4% D-PAK
KA7808ER / KA7809ER
KA7812ER
2
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KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Block Diagram
Figure 1.
Pin Assignment
Figure 2.
Absolute Maximum Ratings
Symbol Parameter Value Unit
V
I
Input Voltage V
O
= 5V to 18V 35 V
V
O
= 24V 40
R
θ
JC
Thermal Resistance Junction-Cases (TO-220) 5
°
C/W
R
θ
JA
Thermal Resistance Junction-Air (TO-220) 65
°
C/W
T
OPR
Operating Temperature Range (KA78XXE/AE/ER) 0 to +125 °C
T
STG
Storage Temperature Range -65 to +150
°
C
Starting
Circuit
Input
1
Reference
Voltage
Current
Generator
SOA
Protection
Thermal
Protection
Series Pass
Element
Error
Amplifier
Output
3
GND
2
1
1. Input
2. GND
3. Output
1
GND
TO-220 D-PAK
GND
3
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KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7805E/KA7805ER)
Refer to test circuit, 0°C < T
J
< 125°C, I
O
= 500mA, V
I
= 10V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified.
Notes:
1. Load and line regulation are specified at constant junction temperature. Changes in V
o
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.
Symbol Parameter Conditions
KA7805E/ER
UnitMin. Typ. Max.
V
O
Output Voltage T
J
= +25
°
C4.8 5.0 5.2 V
5.0mA
≤
I
O
≤
1.0A, P
O
≤
15W
V
I
= 7V to 20V
4.75 5.0 5.25
Regline Line Regulation
(1)
T
J
= +25
°
CV
O
= 7V to 25V – 4.0 100 mV
V
I
= 8V to 12V – 1.6 50
Regload Load Regulation
(1)
T
J
= +25
°
CI
O
= 5.0mA to1.5A – 9 100 mV
I
O
= 250mA to 750mA – 4 50
I
Q
Quiescent Current T
J
= +25
°
C–5.0 8.0 mA
∆
I
Q
Quiescent Current Change I
O
= 5mA to 1.0A – 0.03 0.5 mA
V
I
= 7V to 25V – 0.3 1.3
∆
V
O
/
∆
TOutput Voltage Drift
(2)
I
O
= 5mA – -0.8 – mV/
°
C
V
N
Output Noise Voltage f = 10Hz to 100kHz, T
A
= +25
°
C–42–
µ
V/V
O
RR Ripple Rejection
(2)
f = 120Hz, V
O
= 8V to 18V 62 73 – dB
V
Drop
Dropout Voltage I
O
= 1A, T
J
= +25
°
C–2–V
r
O
Output Resistance
(2)
f = 1kHz – 15 – m
Ω
I
SC
Short Circuit Current V
I
= 35V, T
A
= +25
°
C–230 – mA
I
PK
Peak Current
(2)
T
J
= +25
°
C–2.2 – A
4
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KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7806E/KA7806ER)
(Continued)
Refer to test circuit, 0°C < T
J
< 125°C, I
O
= 500mA, V
I
= 11V, C
I
= 0.33µF, C
O
= 0.1µF, unless otherwise specified.
Notes:
3. Load and line regulation are specified at constant junction temperature. Changes in V
O
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.
Symbol Parameter Conditions
KA7806E/ER
UnitMin. Typ. Max.
V
O
Output Voltage T
J
= +25
°
C 5.75 6.0 6.25 V
5.0mA
≤
I
O
≤
1.0A, P
O
≤
15W
V
I
= 8.0V to 21V
5.7 6.0 6.3
Regline Line Regulation
(3)
T
J
= +25
°
CV
I
= 8V to 25V – 5 120 mV
V
I
= 9V to 13V – 1.5 60
Regload Load Regulation
(3)
T
J
= +25
°
CI
O
= 5mA to 1.5A – 9 120 mV
I
O
= 250mA to 750mA – 3 60
I
Q
Quiescent Current T
J
= +25
°
C–5.0 8.0 mA
∆
I
Q
Quiescent Current Change I
O
= 5mA to 1A – – 0.5 mA
V
I
= 8V to 25V – – 1.3
∆
VO/∆TOutput Voltage Drift(4) IO = 5mA – -0.8 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–45–µV/Vo
RR Ripple Rejection(4) f = 120Hz
VI = 9V to 19V
59 75 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(4) f = 1kHz – 19 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(4) TJ = +25°C–2.2 – A
5www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7808E/KA7808ER) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7808E/ER
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 7.7 8.0 8.3 V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 10.5V to 23V
7.6 8.0 8.4
Regline Line Regulation(5) TJ = +25°CV
I = 10.5V to 25V – 5.0 160 mV
VI = 11.5V to 17V – 2.0 80
Regload Load Regulation(5) TJ = +25°CI
O = 5.0mA to 1.5A – 10 160 mV
IO = 250mA to 750mA – 5.0 80
IQQuiescent Current TJ = +25°C–5.0 8.0 mA
∆IQQuiescent Current
Change
IO = 5mA to 1.0A – 0.05 0.5 mA
VI = 10.5A to 25V – 0.5 1.0
∆VO/∆TOutput Voltage Drift(6) IO = 5mA – -0.8 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–52–µV/Vo
RR Ripple Rejection(6) f = 120Hz, VI = 11.5V to 21.5V 56 73 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(6) f = 1kHz – 17 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–230 – mA
IPK Peak Current(6) TJ = +25°C–2.2 – A
6www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7809E/KA7809ER) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 15V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7809E/ER
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 8.65 9 9.35 V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 11.5V to 24V
8.6 9 9.4
Regline Line Regulation(7) TJ = +25°CV
I = 11.5V to 25V – 6 180 mV
VI = 12V to 17V – 2 90
Regload Load Regulation(7) TJ = +25°CI
O = 5mA to 1.5A – 12 180 mV
IO = 250mA to 750mA – 4 90
IQQuiescent Current TJ = +25°C–5.0 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1.0A – – 0.5 mA
VI = 11.5V to 26V – – 1.3
∆VO/∆TOutput Voltage Drift(8) IO = 5mA – -1 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–58–µV/Vo
RR Ripple Rejection(8) f = 120Hz
VI = 13V to 23V
56 71 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(8) f = 1kHz – 17 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(8) TJ = +25°C–2.2 – A
7www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7810E) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 16V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7810E
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 9.6 10.0 10.4 V
5mA ≤ IO ≤ 1A, PO ≤ 15W
VI = 12.5V to 25V
9.5 10.0 10.5
Regline Line Regulation(9) TJ = +25°CV
I = 12.5V to 25V – 10.0 200 mV
VI = 13V to 25V – 3.0 100
Regload Load Regulation(9) TJ = +25°CI
O = 5mA to 1.5A – 12.0 200 mV
IO = 250mA to 750mA – 4.0 400
IQQuiescent Current TJ = +25°C–5.1 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1A – – 0.5 mA
VI = 12.5V to 29V – – 1.0
∆VO/∆TOutput Voltage Drift(10) IO = 5mA – -1.0 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–58.0 – µV/Vo
RR Ripple Rejection(10) f = 120Hz
VO = 13V to 23V
56.0 71.0 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2.0 – V
rOOutput Resistance(10) f = 1kHz – 17.0 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(10) TJ = +25°C–2.2 – A
8www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7812E/KA7812ER) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 19V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7812E/ER
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 11.5 12 12.5 V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 14.5V to 27V
11.4 12 12.6
Regline Line Regulation(11) TJ = +25°CV
I = 14.5V to 30V – 10 240 mV
VI = 16V to 22V – 3.0 120
Regload Load Regulation(11) TJ = +25°CI
O = 5mA to 1.5A – 11 240 mV
IO = 250mA to 750mA – 5.0 120
IQQuiescent Current TJ = +25°C–5.1 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1.0A – 0.1 0.5 mA
VI = 14.5V to 30V – 0.5 1.0
∆VO/∆TOutput Voltage Drift(12) IO = 5mA – -1 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–76–µV/Vo
RR Ripple Rejection(12) f = 120Hz
VI = 15V to 25V
55 71 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(12) f = 1kHz – 18 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–230 – mA
IPK Peak Current(12) TJ = +25°C–2.2 – A
9www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7815E) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7815E
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 14.4 15 15.6 V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 17.5V to 30V
14.25 15 15.75
Regline Line Regulation(13) TJ = +25°CV
I = 17.5V to 30V – 11 300 mV
VI = 20V to 26V – 3 150
Regload Load Regulation(13) TJ = +25°CI
O = 5mA to 1.5A – 12 300 mV
IO = 250mA to 750mA – 4 150
IQQuiescent Current TJ = +25°C–5.2 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1.0A – – 0.5 mA
VI = 17.5V to 30V – – 1.0
∆VO/∆TOutput Voltage Drift(14) IO = 5mA – -1 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–90–µV/Vo
RR Ripple Rejection(14) f = 120Hz
VI = 18.5V to 28.5V
54 70 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(14) f = 1kHz – 19 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(14) TJ = +25°C–2.2 – A
10 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7818E) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 27V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7818E
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 17.3 18 18.7 V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 21V to 33V
17.1 18 18.9
Regline Line Regulation(15) TJ = +25°CV
I = 21V to 33V – 15 360 mV
VI = 24V to 30V – 5 180
Regload Load Regulation(15) TJ = +25°CI
O = 5mA to 1.5A – 15 360 mV
IO = 250mA to 750mA – 5.0 180
IQQuiescent Current TJ = +25°C–5.2 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1.0A – – 0.5 mA
VI = 21V to 33V – – 1
∆VO/∆TOutput Voltage Drift(16) IO = 5mA – -1 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–110 – µV/Vo
RR Ripple Rejection(16) f = 120Hz
VI = 22V to 32V
53 69 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C – 2 – V
rOOutput Resistance(16) f = 1kHz – 22 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(16) TJ = +25°C–2.2 – A
11 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7824E) (Continued)
Refer to test circuit, 0°C < TJ < 125°C, IO = 500mA, VI = 33V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
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.
Symbol Parameter Conditions
KA7824E
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C232425V
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 27V to 38V
22.8 24 25.25
Regline Line Regulation(17) TJ = +25°CV
I = 27V to 38V – 17 480 mV
VI = 30V to 36V – 6 240
Regload Load Regulation(17) TJ = +25°CI
O = 5mA to 1.5A – 15 480 mV
IO = 250mA to 750mA – 5.0 240
IQQuiescent Current TJ = +25°C–5.2 8.0 mA
∆IQQuiescent Current Change IO = 5mA to 1.0A – 0.1 0.5 mA
VI = 27V to 38V – 0.5 1
∆VO/∆TOutput Voltage Drift(18) IO = 5mA – -1.5 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–60–µV/Vo
RR Ripple Rejection(18) f = 120Hz
VI = 28V to 38V
50 67 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(18) f = 1kHz – 28 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–230 – mA
IPK Peak Current(18) TJ = +25°C–2.2 – A
12 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7805AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 10V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
19. 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.
20. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7805AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 4.9 5 5.1 V
IO = 5mA to 1A, PO ≤ 15W
VI = 7.5V to 20V
4.8 5 5.2
Regline Line Regulation(19) VI = 7.5V to 25V
IO = 500mA
–550mV
VI = 8V to 12V – 3 50
TJ = +25°CV
I = 7.3V to 20V – 5 50
VI = 8V to 12V – 1.5 25
Regload Load Regulation(19) TJ = +25°C
IO = 5mA to 1.5A
–9100 mV
IO = 5mA to 1A – 9 100
IO = 250mA to 750mA – 4 50
IQQuiescent Current TJ = +25°C–5.0 6.0 mA
∆IQQuiescent Current Change IO = 5mA to 1A – – 0.5 mA
VI = 8 V to 25V, IO = 500mA – – 0.8
VI = 7.5V to 20V, TJ = +25°C– –0.8
∆V/∆TOutput Voltage Drift(20) IO = 5mA – -0.8 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz
TA = +25°C
–10 –µV/Vo
RR Ripple Rejection(20) f = 120Hz, IO = 500mA
VI = 8V to 18V
–68 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(20) f = 1kHz – 17 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(20) TJ = +25°C–2.2 – A
13 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7806AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 11V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
21. 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.
22. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7806AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 5.58 6 6.12 V
IO = 5mA to 1A, PO ≤ 15W
VI = 8.6V to 21V
5.76 6 6.24
Regline Line Regulation(21) VI = 8.6V to 25V, IO = 500mA – 5 60 mV
VI = 9V to 13V – 3 60
TJ = +25°CV
I = 8.3V to 21V – 5 60
VI = 9V to 13V – 1.5 30
Regload Load Regulation(21) TJ = +25°C, IO = 5mA to 1.5A – 9 100 mV
IO = 5mA to 1A – 9 100
IO = 250mA to 750mA – 5.0 50
IQQuiescent Current TJ = +25°C–4.3 6.0 mA
∆IQQuiescent Current Change IO = 5mA to 1A – – 0.5 mA
VI = 9V to 25V, IO = 500mA – – 0.8
VI = 8.5V to 21V, TJ = +25°C––0.8
∆V/∆TOutput Voltage Drift(22) IO = 5mA – -0.8 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–10–µV/Vo
RR Ripple Rejection(22) f = 120Hz, IO = 500mA
VI = 9V to 19V
–65 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(22) f = 1kHz – 17 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(22) TJ = +25°C–2.2 – A
14 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7808AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 14V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
23. 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.
24. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7808AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 7.84 8 8.16 V
IO = 5mA to 1A, PO ≤ 15W
VI = 10.6V to 23V
7.7 8 8.3
Regline Line Regulation(23) VI = 10.6V to 25V, IO = 500mA – 6 80 mV
VI = 11V to 17V – 3 80
TJ = +25°CV
I = 10.4V to 23V – 6 80
VI = 11V to 17V – 2 40
Regload Load Regulation(23) TJ = +25°C, IO = 5mA to 1.5A – 12 100 mV
IO = 5mA to 1A – 12 100
IO = 250mA to 750mA – 5 50
IQQuiescent Current TJ = +25°C–5.0 6.0 mA
∆IQQuiescent Current Change IO = 5mA to 1A – – 0.5 mA
VI = 11V to 25V, IO = 500mA – – 0.8
VI = 10.6V to 23V, TJ = +25°C––0.8
∆V/∆TOutput Voltage Drift(24) IO = 5mA – -0.8 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C– 10 – µV/Vo
RR Ripple Rejection(24) f = 120Hz, IO = 500mA
VI = 11.5V to 21.5V
–62 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2–V
rOOutput Resistance(24) f = 1kHz – 18 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(24) TJ = +25°C–2.2 – A
15 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7809AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 15V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
25. 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.
26. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7809AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 8.82 9.0 9.18 V
IO = 5mA to 1A, PO ≤ 15W
VI = 11.2V to 24V
8.65 9.0 9.35
Regline Line Regulation(25) VI = 11.7V to 25V, IO = 500mA – 6 90 mV
VI = 12.5V to 19V – 4 45
TJ = +25°C VI = 11.5V to 24V – 6 90
VI = 12.5V to 19V – 2 45
Regload Load Regulation(25) TJ = +25°C, IO = 5mA to 1.0A – 12 100 mV
IO = 5mA to 1.0A – 12 100
IO = 250mA to 750mA – 5 50
IQQuiescent Current TJ = +25°C–5.0 6.0 mA
∆IQQuiescent Current Change VI = 11.7V to 25V, TJ = +25°C––0.8 mA
VI = 12V to 25V, IO = 500mA – – 0.8
IO = 5mA to 1.0A – – 0.5
∆V/∆TOutput Voltage Drift(26) IO = 5mA – -1.0 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C– 10 –µV/Vo
RR Ripple Rejection(26) f = 120Hz, IO = 500mA
VI = 12V to 22V
–62 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2.0 – V
rOOutput Resistance(26) f = 1kHz – 17 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(26) TJ = +25°C–2.2 – A
16 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7810AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 16V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
27. 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.
28. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7810AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 9.8 10.0 10.2 V
IO = 5mA to 1A, PO ≤ 15W
VI = 12.8V to 25V
9.6 10.0 10.4
Regline Line Regulation(27) VI = 12.8V to 26V, IO = 500mA – 8.0 100 mV
VI = 13V to 20V – 4.0 50.0
TJ = +25°C VI = 12.5V to 25V – 8.0 100
VI = 13V to 20V – 3.0 50.0
Regload Load Regulation(27) TJ = +25°C, IO = 5mA to 1.5A – 12.0 100 mV
IO = 5mA to 1mA – 12.0 100
IO = 250mA to 750mA – 5.0 50.0
IQQuiescent Current TJ = +25°C–5.0 6.0 mA
∆IQQuiescent Current Change IO = 5mA to 1A – – 0.5 mA
VI = 12.8V to 25V, IO = 500mA – – 0.8
VI = 13V to 26V, TJ = +25°C––0.5
∆VO/∆TOutput Voltage Drift(28) IO = 5mA – -1.0 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C–10.0 – µV/Vo
RR Ripple Rejection(28) f = 120Hz, IO = 500mA
VI = 14V to 24V
– 62.0 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2.0 – V
rOOutput Resistance(28) f = 1kHz – 17.0 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(28) TJ = +25°C–2.2 – A
17 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7812AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 19V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
29. 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.
30. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7812AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 11.75 12 12.25 V
IO = 5mA to 1A, PO ≤ 15W
VI = 14.8V to 27V
11.5 12 12.5
Regline Line Regulation(29) VI = 14.8V to 30V, IO = 500mA – 10 120 mV
VI = 16V to 22V – 4 120
TJ = +25°CV
I = 14.5V to 27V – 10 120
VI = 16V to 22V – 3 60
Regload Load Regulation(29) TJ = +25°C, IO = 5mA to 1.5A – 12 100 mV
IO = 5mA to 1.0A – 12 100
IO = 250mA to 750mA – 5 50
IQQuiescent Current TJ = +25°C–5.1 6.0 mA
∆IQQuiescent Current Change VI = 15V to 30V, TJ = +25°C––0.8 mA
VI = 14V to 27V, IO = 500mA – – 0.8
IO = 5mA to 1.0A – – 0.5
∆V/∆TOutput Voltage Drift(30) IO = 5mA – -1.0 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C– 10 –µV/Vo
RR Ripple Rejection(30) f = 120Hz, IO = 500mA
VI = 14V to 24V
–60 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2.0 – V
rOOutput Resistance(30) f = 1kHz – 18 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(30) TJ = +25°C–2.2 – A
18 www.fairchildsemi.com
KA78XXE/KA78XXAE Rev. 1.0.2
KA78XXE/KA78XXAE 3-Terminal 1A Positive Voltage Regulator
Electrical Characteristics (KA7815AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
Notes:
31. 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.
32. These parameters, although guaranteed, are not 100% tested in production.
Symbol Parameter Conditions
KA7815AE
UnitMin. Typ. Max.
VOOutput Voltage TJ = +25°C 14.7 15 15.3 V
IO = 5mA to 1A, PO ≤ 15W
VI = 17.7V to 30V
14.4 15 15.6
Regline Line Regulation(31) VI = 17.9V to 30V, IO = 500mA – 10 150 mV
VI = 20V to 26V – 5 150
TJ = +25°CV
I = 17.5V to 30V – 11 150
VI = 20V to 26V – 3 75
Regload Load Regulation(31) TJ = +25°C, IO = 5mA to 1.5A – 12 100 mV
IO = 5mA to 1.0A – 12 100
IO = 250mA to 750mA – 5 50
IQQuiescent Current TJ = +25°C–5.2 6.0 mA
∆IQQuiescent Current Change VI = 17.5V to 30V, TJ = +25°C––0.8 mA
VI = 17.5V to 30V, IO = 500mA – – 0.8
IO = 5mA to 1.0A – – 0.5
∆V/∆TOutput Voltage Drift(32) IO = 5mA – -1.0 – mV/°C
VNOutput Noise Voltage f = 10Hz to 100kHz, T
A = +25°C– 10 –µV/Vo
RR Ripple Rejection(32) f = 120Hz, IO = 500mA
VI = 18.5V to 28.5V
–58 – dB
VDrop Dropout Voltage IO = 1A, TJ = +25°C–2.0 – V
rOOutput Resistance(32) f = 1kHz – 19 – mΩ
ISC Short Circuit Current VI = 35V, TA = +25°C–250 – mA
IPK Peak Current(32) TJ = +25°C–2.2 – A