For technical support and more information, see inside back cover or visit www.ti.com

Standard Application

Features

36V to 75V

• Output Voltages: 1.2V to 15V

PT4520 Series

20-W 48-V Input Isolated

DC/DC Converter

PT4520

LOAD

4, 5

2, 3

1

9, 10

7, 8

11

6

12

Remote Sense (–)

Remote Sense (+)

+V

OUT

–V

OUT

V

+V

IN

–V

IN

Remote

On/Off

Q

1

BSS138

SLTS148B - JUNE 2000 - REVISED OCTOBER 2002

Ordering Information

PT4521

H = 3.3V/5A (16.5W)

PT4522

H = 5.0V/4A

PT4523

H = 12V/1.6A

PT4524

H = 15V/1.3A

PT4526

H = 1.5V/5A (7.5W)

PT4527

H = 1.8V/5A (9W)

PT4528

H = 2.5V/5A (12.5W)

PT4529

H = 1.2V/5A (6W)

Pin-Out Information

Pin

Function

1

2–Vin

3–Vin

4+Vin

5+Vin

6

Remote Sense (–)

7

–Vout

8

–Vout

9

+Vout

10

+Vout

11

Remote Sense (+)

12

* For further information, see

application notes.

Description

The PT4520 Excalibur™ power modules

are a series of isolated DC/DC converters

housed a new space-saving copper case. The

series includes a number of standard output

voltages ranging from as low as 1.2VDC to

15VDC, each adjustable by up to 10% of

nominal. The modules are ideal for Telecom,

Industrial, Computer, and other distributed

power applications that require input-to-output

isolation.

Using multiple 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 PT4520 series is electrically equivalent

to the popular PT4120 series and requires no

additional components for proper operation.

1.0 sq. in. PCB Area (Suffix N)

Case/Pin

Order

Package

Configuration

Suffix

Code

Vertical

N

(ELJ)

Horizontal

A

(ELK)

SMD

C

(ELL)

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)