UA78M08CKC datasheet(5/20 Pages) TI

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Electrical Characteristics

µA78M00 SERIES

POSITIVE-VOLTAGE REGULATORS

SLVS059P – JUNE 1976 – REVISED OCTOBER 2005

at specified virtual junction temperature, V

I = 8 V, IO = 350 mA, TJ = 25°C (unless otherwise noted)

µA78M33C

PARAMETER

TEST CONDITIONS(1)

UNIT

MIN

TYP

MAX

3.2

3.3

3.4

IO = 5 mA to 350 mA,

Output voltage(2)

VI = 8 V to 20 V

TJ = 0°C to 125°C

3.1

3.3

3.5

VI = 5.3 V to 25 V

100

Input voltage regulation

IO = 200 mA

VI = 8 V to 25 V

IO = 100 mA, TJ = 0°C to 125°C

VI = 8 V to 18 V,

Ripple rejection

f = 120 Hz

IO = 300 mA

Output voltage regulation

VI = 8 V,

IO = 5 mA to 500 mA

100

Temperature coefficient

IO = 5 mA,

TJ = 0°C to 125°C

–1

mV/

°C

of output voltage

Output noise voltage

f = 10 Hz to 100 kHz

200

µV

Dropout voltage

Bias current

4.5

IO = 200 mA, VI = 8 V to 25 V, TJ = 0°C to 125°C

0.8

Bias current change

IO = 5 mA to 350 mA,

TJ = 0°C to 125°C

0.5

Short-circuit output current

VI = 35 V

300

Peak output current

700

(1)

All characteristics are measured with a 0.33-

µF capacitor across the input and a 0.1-µF capacitor across the output. Pulse-testing

techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.

(2)

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

at specified virtual junction temperature, V

I = 10 V, IO = 350 mA, TJ = 25°C (unless otherwise noted)

µA78M05C

PARAMETER

TEST CONDITIONS(1)

UNIT

MIN

TYP

MAX

4.8

5.2

IO = 5 mA to 350 mA,

Output voltage

VI = 7 V to 20 V

TJ = 0°C to 125°C

4.75

5.25

VI = 7 V to 25 V

100

Input voltage regulation

IO = 200 mA

VI = 8 V to 25 V

IO = 100 mA, TJ = 0°C to 125°C

VI = 8 V to 18 V,

Ripple rejection

f = 120 Hz

IO = 300 mA

IO = 5 mA to 500 mA

100

Output voltage regulation

IO = 5 mA to 200 mA

Temperature coefficient

IO = 5 mA,

TJ = 0°C to 125°C

–1

mV/

°C

of output voltage

Output noise voltage

f = 10 Hz to 100 kHz

200

µV

Dropout voltage

Bias current

4.5

IO = 200 mA, VI = 8 V to 25 V, TJ = 0°C to 125°C

0.8

Bias current change

IO = 5 mA to 350 mA,

TJ = 0°C to 125°C

0.5

Short-circuit output current

VI = 35 V

300

Peak output current

0.7

(1)

All characteristics are measured with a 0.33-

µF capacitor across the input and a 0.1-µF capacitor across the output. Pulse-testing

techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.

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