Philips ua723 DATASHEETS

Philips Semiconductors Product specification

µA723/723CPrecision 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

•Positive or negative supply operation

•Series, shunt, switching, or floating operation

•0.01% line and load regulation

•Output voltage adjustable from 2V to 37V

•Output current to 150mA without external pass transistor

•µA723 MIL-STD-883A, B, C available

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–

V

REF

NC
FREQUENCY COMPENS.

NC

V+
V

C

V

OUT

V

Z

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

V

C

V

Z

V

OUT

8

V

REF

V

IN

SL00504

Figure 2. Equivalent Circuit

Philips Semiconductors Product specification

µA723/723CPrecision voltage regulator

1994 Aug 31

2

ABSOLUTE MAXIMUM RATINGS

SYMBOL PARAMETER RATING UNIT

Pulse voltage from V+ to V- (50ms) 50 V
Continuous voltage from V+ to V- 40 V
Input-output voltage differential 40 V

V

DIFF

Error amplifier maximum input differential voltage ±5 V

V

CM

Error amplifier non-inverting input (Pin 5) to -V (Pin 7) 8 V

I

OUT

Maximum output current 150 mA
Current from V

REF

15 mA

Current from V

Z

25 mA

P

MAX

Maximum power dissipation TA=25°C (still-air)

1

F package 1190 mW
N package 1420 mW
D package 1040 mW

T

A

Operating ambient temperature range

µA723
µA723C

-55 to +125
0 to 70

°C
°C

T

STG

Storage temperature range -65 to +150 °C

T

SOLD

Lead soldering temperature (10sec max) 300 °C

NOTES:

1. The following derating factors should be applied above 25°C
F package at 9.5mW/°C
N package at 11.4mW/°C
D package at 8.3mW/°C