KA7805 Просмотр технического описания (PDF) - Fairchild Semiconductor

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производитель

KA7805

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

KA78XX/KA78XXA

Electrical Characteristics (KA7818A)

(Refer to the test circuits. 0oC < TJ < +125 oC, Io =1A, V I = 27V, C I=0.33µF, C O=0.1µF, unless otherwise speci-

fied)

Parameter

Output Voltage

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

Symbol

VO

Regline

Regload

IQ

∆IQ

∆V/∆T

VN

RR

VDrop

rO

ISC

IPK

Conditions

TJ =+25 °C

IO = 5mA to 1A, PO ≤15W

VI = 21V to 33V

VI= 21V to 33V

IO = 500mA

VI= 21V to 33V

TJ =+25 °C

VI= 20.6V to 33V

VI= 24V to 30V

TJ =+25°C

IO = 5mA to 1.5A

IO = 5mA to 1.0A

IO = 250mA to 750mA

TJ =+25 °C

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 =+25°C

f = 120Hz, IO = 500mA

VI = 22V to 32V

IO = 1A, TJ =+25°C

f = 1KHz

VI= 35V, TA =+25°C

TJ=+25 °C

Min. Typ. Max. Unit

17.64 18 18.36

V

17.3 18 18.7

-

15 180

-

5

180

mV

-

15 180

-

5

90

-

15 100

-

15

100

mV

-

7

50

-

5.2 6.0

mA

-

-

0.8

-

-

0.8 mA

-

-

0.5

-

-1.0

- mV/ °C

-

10

-

µV/Vo

-

57

-

dB

-

2.0

-

V

-

19

-

mΩ

-

250

-

mA

-

2.2

-

A

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

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