KA7818AE 查看數據表（PDF） - Fairchild Semiconductor

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KA7818AE

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

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.

KA7812AE

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

VO

Output Voltage

Regline Line Regulation(29)

Regload Load Regulation(29)

IQ

Quiescent Current

∆IQ

Quiescent Current Change

∆V/∆T

VN

RR

Output Voltage Drift(30)

Output Noise Voltage

Ripple Rejection(30)

VDrop

rO

ISC

IPK

Dropout Voltage

Output Resistance(30)

Short Circuit Current

Peak Current(30)

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

VI = 14.8V to 30V, IO = 500mA

–

10 120

mV

VI = 16V to 22V

–

4

120

TJ = +25°C VI = 14.5V to 27V –

10 120

VI = 16V to 22V

–

3

60

TJ = +25°C, IO = 5mA to 1.5A

–

12 100

mV

IO = 5mA to 1.0A

–

12 100

IO = 250mA to 750mA

–

5

50

TJ = +25°C

–

5.1 6.0

mA

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

IO = 5mA

–

-1.0

– mV/°C

f = 10Hz to 100kHz, TA = +25°C

–

10

–

µV/Vo

f = 120Hz, IO = 500mA

VI = 14V to 24V

–

60

–

dB

IO = 1A, TJ = +25°C

–

2.0

–

V

f = 1kHz

–

18

–

mΩ

VI = 35V, TA = +25°C

TJ = +25°C

–

250

–

mA

–

2.2

–

A

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.

17

KA78XXE/KA78XXAE Rev. 1.0.1

www.fairchildsemi.com

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