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PT5400 Series

6-A 5-V/3.3-V Input Adjustable

SWIFT™ Power Module

SLTS169C - MAY 2002 - REVISED OCTOBER 2003

Standard Application

Ordering Information

Input Bus

5 V 3.3 V Pt No.

Vout

!

PT5401

H 3.3 Volts

!

PT5402

H 2.5 Volts

! PT5408H 2.5 Volts

!! PT5403H 2.0 Volts

!! PT5404H 1.8 Volts

!! PT5405H 1.5 Volts

!! PT5406H 1.2 Volts

!! PT5407H 1.0 Volts

Pin

Function

1

Inhibit *

2Vin

3

GND

Features

(0.355 in², Suffix ‘N’)

Pin-Out Information

C

1

(Required)

C

2

(Optional)

+V

O

GND

GND

+V

IN

+

PT5400

2

3

5

4

1

INH

V

+

* For Inhibit pin:

Open = output enabled

Ground = output disabled

Description

The PT5400 Excalibur™ power modules are a

series of high-performance integrated switching

regulators (ISRs) based on TI’s SWIFT (Switcher

With Integrated FET Technology) regulator ICs.

These ready-to-use modules are rated for up to

6 A of output current from input voltages as low

as 3.1 V, providing a convenient step-down power

source for the industry’s latest high-performance

DSPs and microprocessors. The series includes

output voltage options as low as 1.0 VDC.

The PT5400 modules are packaged in a 5-pin

thermally efficient copper case, which offers the

advantage of solderability along with a small foot-

print (0.355 in², suffix ‘N’). Both through-hole and

surface mount pin configurations are available.

The product features external output voltage

adjustment, an on/off inhibit function, short cir-

cuit protection, and thermal shutdown. A 100-µF

input capacitor is required for proper operation.

Case/Pin

Order

Package

Configuration

Suffix

Code

Vertical

N

(EFK)

Horizontal

A

(EFL)

SMD

C

(EFM)

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)