KA79XXA datasheet(10/15 Pages) FAIRCHILD

Numer części	KA79XXA

Szczegółowy opis	FIXED VOLTAGE REGULATOR (NEGATIVE)

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MC79XX (LM79XX) (KA79XX/A)

FIXED VOLTAGE REGULATOR (NEGATIVE)

LM7905A ELECTRICAL CHARACTERISTICS

(VI = 10V, lO = 500mA, 0

°C ≤T

J

≤ +125°C, C

I =2.2

µF, C

O =1

µF, unless otherwise specified.)

* 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.

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

TJ =+ 25

°C

- 4.9

- 5.0

- 5.1

Output Voltage

VO

IO = 5mA to 1A, PO 15W

VI = -7 to -20V

- 4.8

-5.0

- 5.2

V

VI = -7 to -20V

IO=1A

5

50

VI = -8 to -12V

IO=1A

2

25

VI = -7.5 to -25V

7

50

VI= -8 to -12V

IO=1A

7

50

IO = 5mA to 1.5A

10

100

TJ =+ 25

°C

IO = 250 to 750mA

3

50

Quiescent Current

IQ

TJ = +25

°C

3

6

mA

IO = 5mA to 1A

0.05

0.5

VI = -8 to -25V

0.1

0.8

Temperature Coefficient of VD

∆V

O/

∆T

IO = 5mA

- 0.4

mV/

°C

Output Noise Voltage

VN

f = 10Hz to 100KHz

TA =+ 25

°C

40

µV

Ripple Rejection

RR

f = 120Hz, IO = -35V

∆V

I = 10V

54

60

dB

Dropout Voltage

VD

TJ=+ 25

°C

IO = 1A

2

V

Short Circuit Current

ISC

TJ =+ 25

°C, V

I = -35V

300

mA

Peak Current

IPK

TJ =+ 25

°C

2.2

A

Load Regulation

∆V

O

Line Regulation

∆V

O

TJ =+25

°C

mV

Quiescent Current Change

∆I

Q

mA

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