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PT4660 Series

Description

The PT4660 Excalibur™ Series

is a 30-A rated, dual-output isolated

DC/DC converter that combines

state-of-the-art power conversion

technology with unparalleled flex-

ibility. These modules operate from

a standard telecom (–48 V) central

office (CO) supply to produce two

independantly regulated outputs.

The PT4660 series is characterized

with high efficiencies and ultra-fast

transient response, and incorporates

many features to facilitate system

integration. These include a flexible

“On/Off” enable control, output

current limit, over-temperature

30-A Dual Output Isolated

DC/DC Converter

Features

(Independantly Regulated)

36 V to 75 V

(Both Outputs)

Ordering Information

Pt. No.

PT4661

o

= 5.0/3.3 Volts

PT4662

o

= 3.3/2.5 Volts

PT4663

o

= 3.3/1.8 Volts

PT4665

o

= 3.3/1.5 Volts

PT4666

o

= 2.5/1.8 Volts

PT4667

o

= 5.0/1.8 Volts

PT4668

o

= 3.3/1.2 Volts

Typical Application

PT4660

+Vin

EN 1*

EN 2

–Vin

Vo

Vo

Vo

1

Vo

2

COM

9–12

21–24

14–19

L

O

A

D

L

O

A

D

Vo

1

Vo

2

V

V

+V

IN

–V

IN

20

13

1

4

3

2

COM

* Inverted logic

(Coordinated Shutdown)

UL1950

CSA 22.2 950

protection, and an input under-voltage

lockout (UVLO). In addition, both

output voltages are designed to meet

the power-up/power-down sequenc-

ing requirements of popular DSPs.

The PT4660 series is housed in

space-saving solderable copper case.

The package does not require a

heatsink and is available in both

vertical and horizontal configura-

tions, including surface mount. The

‘N’ configuration occupies less than 2

in² of PCB area.

Case/Pin

Order

Package

Configuration

Suffix

Code

Vertical

N

(EKD)

Horizontal

A

(EKA)

SMD

C

(EKC)

(Reference the applicable package code draw-

ing for the dimensions and PC board layout)

SLTS140C – MAY 2001 – REVISED OCTOBER 2003