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Case/Pin

Order

Package

Configuration Suffix

Code

Vertical

N

(ENE)

Horizontal

A

(ENF)

SMD

C

(ENG)

(Reference the applicable package code

drawing for the dimensions and PC

board layout)

PT7673—5 V

30-A 5-Bit Programmable

Integrated Switching Regulator

SLTS184A - JANUARY 2003 - REVISED JUNE 2003

Features

0.8 V to 1.575 V

Description

The PT7673 Excalibur™ high perfor-

mance integrated switching regulator

(ISR) is rated for up to 30 A. Housed in

a 27-pin, space-saving, solderable cop-

per package, the PT7673 delivers a

higher output current than many mod-

ules of similar size. This makes it an

ideal choice where both a high output

current and minimum board space are

desirable. The PT7673 operates from a

+5-V input bus and produces a tightly

regulated output voltage that is pro-

grammable over the range, 0.8 V to

1.575 V. The output voltage set-point

is selected via a 5-bit input code.

Standard Application

= Required 1500 µF electrolytic

= Optional 1 µH input choke

PT7673

432

1

26

20–25

12

5

13–19

7–11

L

O

A

D

C

OUT

+

C

IN

+

PROGRAMMING PINS

V

IN

V

OUT

GND

SENSE(+)

SENSE(–)

STBY

VID0

VID1

VID2

VID3

L1

1 µH

GND

VID4

6

Ordering Information

PT7673

o = 0.8 to 1.575 Volts

The PT7673 is most suitable for

powering high-end DSP, ASIC, and

microprocessor circuits that require

core or I/O logic supply voltages as low

as 0.8 V.

Other features include output short-

circuit and over-temperature protection,

a standby control, and a differential

remote sense to compensate for voltage

drop between the regulator and load.