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uA7912 Electrical Characteristics

µA7900 SERIES

NEGATIVE-VOLTAGE REGULATORS

SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006

at specified virtual junction temperature, V

µA7912C

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

25

°C

–11.5

–12

–12.5

V

0

°C to 125°C

–11.4

–12.6

5

80

Input regulation

mV

3

30

Ripple rejection

0

°C to 125°C

54

60

dB

15

200

Output regulation

mV

5

75

Temperature coefficient of output voltage

0

°C to 125°C

–0.8

mV/

°C

Output noise voltage

f = 10 Hz to 100 kHz

25

°C

300

µV

Dropout voltage

25

°C

1.1

V

Bias current

25

°C

2

3

mA

0.04

0.5

Bias current change

mA

0.06

0.5

Peak output current

25

°C

2.1

A

(1)

Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be

taken into account separately. All characteristics are measured with a 2-

µF capacitor across the input and a 1-µF capacitor across the

output.

(2)

This specification applies only for dc power dissipation permitted by absolute maximum ratings.

4

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