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KA7818AE

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

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.

KA7808AE

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

VO

Output Voltage

Regline Line Regulation(23)

Regload Load Regulation(23)

IQ

Quiescent Current

∆IQ

Quiescent Current Change

∆V/∆T

VN

RR

Output Voltage Drift(24)

Output Noise Voltage

Ripple Rejection(24)

VDrop

rO

ISC

IPK

Dropout Voltage

Output Resistance(24)

Short Circuit Current

Peak Current(24)

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

VI = 10.6V to 25V, IO = 500mA

–

6

80

mV

VI = 11V to 17V

–

3

80

TJ = +25°C VI = 10.4V to 23V –

6

80

VI = 11V to 17V

–

2

40

TJ = +25°C, IO = 5mA to 1.5A

–

12 100 mV

IO = 5mA to 1A

–

12 100

IO = 250mA to 750mA

–

5

50

TJ = +25°C

–

5.0 6.0

mA

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

IO = 5mA

–

-0.8

– mV/°C

f = 10Hz to 100kHz, TA = +25°C –

10

– µV/Vo

f = 120Hz, IO = 500mA

VI = 11.5V to 21.5V

–

62

–

dB

IO = 1A, TJ = +25°C

–

2

–

V

f = 1kHz

–

18

–

mΩ

VI = 35V, TA = +25°C

TJ = +25°C

–

250

–

mA

–

2.2

–

A

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.

14

KA78XXE/KA78XXAE Rev. 1.0.1

www.fairchildsemi.com

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