07/25/03

www.irf.com

1

ADVANCED ANALOG

RADIATION TOLERANT

DC/DC CONVERTERS

Description

n 12 Watts Output Power

n Available in 3.3, 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)

n No SEE to LET > 60 MeV-cm

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

Features

AMF

28V Input, Single Output

The AMF28XXS series of DC/DC converter modules

has been specifically designed for operation in moder-

ate radiation environments supplementing the higher

radiation performance available in the Advanced Ana-

log ART, ARH and G-Series converters. Environ-

ments 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 hard-

ness 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. Fin-

ished product are fabricated in a facility fully qualified

to MIL-PRF-38534. The standard processing adopted

for the AMF28XXS meets the requirements of MIL-PRF-

38534 for class H but with enhanced screening steps

and includes element evaluation. Applicable generic

lot qualification test data including radiation perfor-

mance can be made available on request. Consult

Advanced Analog for special requirements.

AMF28XXS SERIES

PD - 94689

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 mechani-

cal security than traditional packages.

Advanced

Analog’s rugged ceramic seal pins are used exclusively

in the package thereby assuring long term hermeticity.