Philips Semiconductors

Product specification

µA723/723C

Precision voltage regulator

1

1994 Aug 31

853-1063 13721

DESCRIPTION

The

µA723/µA723C is a monolithic precision voltage regulator

capable of operation in positive or negative supplies as a series,

shunt, switching, or floating regulator. The 723 contains a

temperature-compensated reference amplifier, error amplifier, series

pass transistor, and current limiter, with access to remote shutdown.

FEATURES

PIN CONFIGURATION

D,F, N Packages

1

2

3

4

5

6

7

8

14

13

12

11

10

9

NC

CURRENT LIMIT

CURRENT SENSE

INVERTING INPUT

NON-INVERTING INPUT

V–

VREF

NC

FREQUENCY COMPENS.

NC

V+

VC

VOUT

VZ

SL00503

Figure 1. Pin Configuration

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

ORDER CODE

DWG #

14-Pin Ceramic Dual In-Line Package (CERDIP)

-55

°C to 125°C

µA723F

0581B

14-Pin Plastic Dual In-Line Package (DIP)

0 to 70

°C

µA723CN

SOT27-1

14-Pin Plastic Small Outline (SO) Package

0 to 70

°C

µA723CD

SOT108-1

EQUIVALENT CIRCUIT

TEMPERATURE

COMPENSATED

ZENER

7

V–

VOLTAGE

REFERENCE

AMPLIFIER

INVERTING

INPUT

4

ERROR AMP

NON INVERTING

INPUT

–

+

CURRENT

LIMIT

2

3 CURRENT

SENSE

FREQUENCY

COMPENSATION

V+

12

13

11

SERIES PASS

TRANSISTOR

10

9

VC

VZ

VOUT

8

VREF

VIN

SL00504

Figure 2. Equivalent Circuit