µA79M00 SERIES

NEGATIVEVOLTAGE REGULATORS

SLVS060K − JUNE 1976 − REVISED APRIL 2005

3

POST OFFICE BOX 655303

recommended operating conditions

MIN

MAX

UNIT

VI

Input voltage

µA79M05C

−7

−25

V

VI

Input voltage

µA79M08C

−10.5

−25

V

IO

Output current

500

mA

TJ

Operating virtual junction temperature

0

125

°C

(unless otherwise noted)

PARAMETER

TEST CONDITIONS†

µA79M05C

UNIT

PARAMETER

TEST CONDITIONS†

MIN

TYP

MAX

UNIT

Output voltage

VI = −7 V to −25 V,

IO = 5 mA to 350 mA

−4.8

−5

−5.2

V

Output voltage

VI = −7 V to −25 V,

IO = 5 mA to 350 mA

TJ = 0°C to 125°C

−4.75

−5.25

V

Input voltage regulation

VI = −7 V to −25 V

7

50

mV

Input voltage regulation

VI = −8 V to −18 V

3

30

mV

Ripple rejection

VI = −8 V to −18 V,

IO = 100 mA,

TJ = 0°C to 125°C

50

dB

Ripple rejection

VI = −8 V to −18 V,

f = 120 Hz

IO = 300 mA

54

60

dB

Output voltage regulation

IO = 5 mA to 500 mA

75

100

mV

Output voltage regulation

IO = 5 mA to 350 mA

50

mV

Temperature coefficient

of output voltage

IO = 5 mA,

TJ = 0°C to 125°C

−0.4

mV/

°C

Output noise voltage

f = 10 Hz to 100 kHz

125

µV

Dropout voltage

1.1

V

Bias current

1

2

mA

Bias current change

VI = −8 V to −18 V,

TJ = 0°C to 125°C

0.4

mA

Bias current change

IO = 5 mA to 350 mA,

TJ = 0°C to 125°C

0.4

mA

Short-circuit output current

VI = −30 V

140

mA

Peak output current

0.65

A

† Pulse-testing techniques maintain TJ as close to TA 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.