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TDA3617

Multiple voltage regulator

Philips Electronics 

Philips Semiconductors

Multiple voltage regulator

Preliminary specification

TDA3617

FEATURES

General

• Three VP-state controlled regulators

(regulators 1, 2 and 3)

• Very good stability and noise behaviour

• 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

• Hold output for indicating regulator 1 and/or 2 and/or 3

out of regulation.

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 protection 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 VP for all regulator

outputs.

GENERAL DESCRIPTION

The TDA3617J 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 that can withstand load dump pulses and

negative supply voltages

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

4. Local temperature protection for regulator 3

5. A hold output that can be used to interface with a

microprocessor. The hold indicates that the selected

output voltages are available and within their ranges.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

Supply

VP

supply voltage

operating

jump start

load dump protection

Iq(tot)

Tj

total quiescent current

junction temperature

Voltage regulators

VREG1

VREG2

output voltage regulator 1

output voltage regulator 2

VREG3

output voltage regulator 3

CONDITIONS

MIN. TYP. MAX. UNIT

t ≤ 10 minutes

for 50 ms; tr ≥ 2.5 ms

standby mode

9.5 14.4 17.5 V

−

−

30

V

−

−

50

V

−

5

40

µA

−

−

175 °C

1 mA ≤ IREG1 ≤ 1.3 A

8.55 9.0

1 mA ≤ IREG2 ≤ 600 mA; 4.75 5.0

VP = 14.4 V

1 mA ≤ IREG3 ≤ 300 mA 3.14 3.3

9.45 V

5.25 V

3.46 V

ORDERING INFORMATION

TYPE

NUMBER

TDA3617J

NAME

DBS9P

PACKAGE

DESCRIPTION

plastic DIL-bent-SIL power package; 9 leads (lead length 7.7 mm)

VERSION

SOT157-4

1999 Jul 14

2

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