1997 May 05

2

Philips Semiconductors

Preliminary specification

Multiple voltage regulator with switch

TDA3607

FEATURES

regulator 2 and regulator 3)

• Separate control pins for switching regulators 1, 2 and 3

• Supply voltage range from −18 to +50 V

• Low quiescent current (when regulators 1, 2 and 3 are

switched off)

• High ripple rejection.

PROTECTIONS

• Reverse polarity safe (down to −18 V without high

reverse current)

• Able to withstand voltages up to 18 V at the outputs

(supply line may be short-circuited)

• ESD protected on all pins

• Thermal protection

• Load dump protection

• Foldback current limit protection for

regulators 1, 2 and 3

• DC short-circuit safe to ground and V

outputs.

GENERAL DESCRIPTION

The TDA3607 is a multiple output voltage regulator with

three independent regulators. It contains:

1. Three fixed voltage regulators with foldback current

protection (regulators 1, 2 and 3)

2. A supply pin which can withstand load dump pulses

and negative supply voltages

3. Independant enable inputs for regulators 1, 2 and 3

4. Local temperature protection for regulator 3.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply

supply voltage

operating

11

14.4

18

V

jump start

t

≤ 10 minutes

−−

30

V

load dump protection

−−

50

V

total quiescent current

standby mode

−

140

µA

junction temperature

−−

150

°C

Voltage regulators

output voltage regulator 1

0.5 mA

8.55

9.0

9.45

V

output voltage regulator 2

0.5 mA

4.75

5.0

5.25

V

output voltage regulator 3

0.5 mA

4.75

5.0

5.25

V

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA3607

SIL9P

plastic single in-line power package; 9 leads

SOT131-2