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COMMON

OUTPUT

12 V

5 V and 8 V

6.2 V

5 k

Ω

20 k

Ω

0.2 k

Ω

INPUT

All component values are nominal.

Absolute Maximum Ratings

(1)

Package Thermal Data

(1)

Recommended Operating Conditions

µA7900 SERIES

NEGATIVE-VOLTAGE REGULATORS

SLVS058H – JUNE 1976 – REVISED NOVEMBER 2006

SCHEMATIC

over virtual junction temperature range (unless otherwise noted)

MIN

MAX

UNIT

Input voltage

–35

V

Operating virtual junction temperature

150

°C

Storage temperature range

–65

150

°C

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

PACKAGE

BOARD

θ

JA

θ

JC

θ

JP

(2)

PowerFLEX (KTE)

High K, JESD 51-5

23

°C/W

3

°C/W

2.7

°C/W

TO-220 (KCS)

High K, JESD 51-5

19

°C/W

17

°C/W

3

°C/W

TO-263 (KTT)

High K, JESD 51-5

25.3

°C/W

18

°C/W

1.94

°C/W

(1)

(2)

For packages with exposed thermal pads, such as QFN, PowerPAD™, or PowerFLEX,

θ

the die junction and the bottom of the exposed pad.

MIN

MAX

UNIT

µA7905

–7

–25

Input voltage

µA7908

–10.5

–25

V

µA7912

–14.5

–30

Output current

1.5

A

Operating virtual junction temperature

0

125

°C

2

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