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KA7818AE

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

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.

KA7808E/ER

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

VO

Regline

Regload

IQ

∆IQ

∆VO/∆T

VN

RR

VDrop

rO

ISC

IPK

Output Voltage

TJ = +25°C

Line Regulation(5)

5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W

VI = 10.5V to 23V

TJ = +25°C VI = 10.5V to 25V

Load Regulation(5)

TJ = +25°C

VI = 11.5V to 17V

IO = 5.0mA to 1.5A

IO = 250mA to 750mA

Quiescent Current

TJ = +25°C

Quiescent

Change

Current

Output Voltage Drift(6)

IO = 5mA to 1.0A

VI = 10.5A to 25V

IO = 5mA

Output Noise Voltage

Ripple Rejection(6)

f = 10Hz to 100kHz, TA = +25°C

f = 120Hz, VI = 11.5V to 21.5V

Dropout Voltage

Output Resistance(6)

IO = 1A, TJ = +25°C

f = 1kHz

Short Circuit Current

Peak Current(6)

VI = 35V, TA = +25°C

TJ = +25°C

7.7 8.0 8.3

V

7.6 8.0 8.4

– 5.0 160 mV

– 2.0 80

–

10 160 mV

– 5.0 80

– 5.0 8.0 mA

– 0.05 0.5 mA

– 0.5 1.0

– -0.8 – mV/°C

–

52

– µV/Vo

56 73

–

dB

–

2

–

V

–

17

–

mΩ

– 230 –

mA

– 2.2 –

A

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

KA78XXE/KA78XXAE Rev. 1.0.1

www.fairchildsemi.com

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