GS-R51212S Datasheet

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GS-R51212S

GS-R51515S

31W TRIPLE OUTPUT STEP-DOWN SWITCHING REGULATORS

Type

GS-R51212S

V

i

15 to 40 V

V

o

+ 5,1 V

I

o

4,5 A

0,35 A

4,5 A

0,3 A

卤

12 V

+ 5,1 V

GS-R51515S

15 to 40 V

卤

15 V

FEATURES

5.1V/4.5A and

卤12V/0.35A

or

卤15V/0.3A

output

voltages

卤12

or

卤15V

externally adjustable

High efficiency (81% typ.)

Short-circuit protection

Reset output

Power Fail programmable input

Inhibit/Enable control input

Soft-start

PCB or chassis mounting

DESCRIPTION

The GS-R51212S and GS-R51515S are versatile

triple output, high current step-down switching

regulators that provide +5.1V/4.5A output voltage

and an isolated

卤12V/0.35A

or

卤15V/0.3A

dual

output voltage.

They are ideal for microprocessor based boards

because power the logic and the communication

ports and have Reset output and Power Fail pro-

grammable input for the correct system start-up.

ABSOLUTE MAXIMUM RATINGS

Symbol

Vi

Irs

DC Input Voltage

Reset Output Sink Current

Parameter

Value

44

20

Unit

V

mA

The Inhibit/Enable pin allows the ON/OFF logic

function with TTL/CMOS compatible input signal.

The auxiliary outputs (卤12V or

卤15V)

are externally

adjustable in a very wide range, i.e. from

卤4.25V

to

卤12.45V

on GS-R51212S and from

卤4.50V

to

卤15.25V

(typical values) on GS-R51515S.

June 1994

1/8

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