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Standard Application

Features

36V to 75V

PT4120 Series

20-W 48-V Input Isolated

DC/DC Converter

PT4120

LOAD

3

2

1

5

4

6

+V

OUT

–V

OUT

V

+V

IN

–V

IN

Remote

On/Off

Q

1

BSS138

SLTS092B

(Revised 2/26/2002)

Ordering Information

PT4121

H =

3.3V/5A

(16.5W)

PT4122

H =

5.0V/4A

PT4123

H = 12.0V/1⋅6A

PT4124

H = 15.0V/1⋅3A

PT4125

H =

5.2V/3·8A

PT4126

H =

1.5V/5A

(7.5W)

PT4127

H =

1.8V/5A

(9W)

PT4128

H =

2.5V/5A

(12.5W)

PT4129

H =

1.65V/5A (8·25W)

Pin-Out Information

Pin

Function

1

2–Vin

3+Vin

4

–Vout

5

+Vout

† For further information, see

application notes.

Description

The PT4120 power modules are a series

of isolated DC/DC converters housed a low-

profile package. Rated for 20 watts or 5A, the

series includes standard output voltages rang-

ing from as low as 1.5VDC to 15VDC. The

output may be adjusted ±10% of nominal.

These converters are ideal for Telecom,

Industrial, Computer, and other distributed

power applications that require input-to-

output isolation.

Using multiple PT4120 modules, system

designers can implement a complete custom

power supply solution. The flexibility of full

isolation also allows the input or output to be

configured for negative voltage operation.

The PT4120 series requires no additional

components for proper operation.

Case/Pin

Order

Package

Configuration

Suffix

Code *

Horizontal

A

(EGD)

SMD

C

(EGE)

* Previously known as package style 710.

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)