09/15/08

www.irf.com

1

Description

n 12 Watts Output Power

n Available in 3.3, 5, 7.5, 12 and 15 Volt Outputs

n 16 - 40 VDC Input Range (28 VDC Nominal)

n Low Input/Output Noise

n Total Ionizing Dose > 25KRads (Si)

2

/mg

n -55°C to +125°C Operating Range

n Indefinite Short Circuit Protection

n Flexible Mounting

n High Power Density

n Fully Isolated - Input to Output and to Case

n Complimentary EMI Filter Available

n Synchronizable From An External Source

n Electrical Performance Similar to

AHF28XXS Series

n Standard Microcircuit Drawings Available

Features

AMF

28V Input, Single Output

The AMF28XXS series of DC/DC converter modules

has been specifically designed for operation in

moderate radiation environments supplementing the

higher radiation performance available in the

International Rectifier ART, ARH and G-Series

converters. Environments presented to space vehicles

operating in low earth orbits, launch boosters, orbiting

space stations and similar applications requiring a low

power, high performance converter with moderate

radiation hardness performance will be optimally

served by the AMF28XXS Series.

The AMF28XXS has been designed for high density

using chip and wire hybrid technology that complies

with the class H requirements of MIL-PRF-38534.

Manufactured in a facility fully qualified to MIL-PRF-38534,

these converters are fabricated utilizing DSCC qualified

processes. For available screening options, refer to

device screening table in the data sheet. Applicable

generic lot qualification test data including radiation

performance can be made available on request. Consult

IR Santa Clara for special requirements.

AMF28XXS SERIES

The physical configuration of the AMF28XXS series

permits mounting directly to a heat dissipation surface

without the necessity of signal leads penetrating the

heat sink surface. This package configuration permits

greater independence in mounting and more

mechanical security than traditional packages.

International Rectifier’s rugged ceramic seal pins are

used exclusively in the package thereby assuring long

term hermeticity.

HYBRID - HIGH RELIABILITY

RADIATION TOLERANT

DC/DC CONVERTER

PD-94689B