NTE971

Linear Integrated Circuit

Voltage Regulator, Negative, –24V, 1A

Description:

The NTE924 fixed–voltage regulator is a monolithic integrated circuit in a TO220 type package de-

signed for use in a wide variety of applications including local, on–card regulation. This regulator em-

ploys internal current limiting, thermal shutdown, and safe–area compensation. With adequate heat

sinking it can deliver output currents in excess of 1A. Although designed primarily as a fixed regulator,

this device can be used with external components to obtain adjustable voltages and currents.

Features:

D No External Components Required

D Internal Thermal Overload Protection

D Internal Short–Circuit Current Limiting

D Output Transistor Safe–Area Compensation

–40V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Internally Limited

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derate Above +25

°C

15.4mW/

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Internally Limited

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derate Above +75

°C

200mW/

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55

° to +150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

° to +150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output Voltage

–23.0

–24.0

–25.0

V

5mA

–38V

–22.8

–24.0

–25.2

V

Line Regulation

–38V

–

31

480

mV

Note 1

–36V

–

14

240

Load Regulation

5mA

–

60

480

mV

Note 1

250mA

–

25

240