03/02/04

www.irf.com

1

RADIATION TOLERANT

DC/DC CONVERTERS

Description

n 5 Watts Output Power

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

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

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 Fully Isolated - Input to Output and to Case

n Complimentary EMI Filter Available

n Electrical Performance Similar to

ASA28XXS Series

Features

AMA

28V Input, Single Output

The AMA28XXS 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 ART2815T converter series.

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

AMA28XXS Series.

The AMA28XXS has been designed for high density

using chip and wire hybrid technology that complies

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

Finished product will be fabricated in a facility fully

qualified to MIL-PRF-38534. The standard processing

adopted for the AMA28XXS 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 performance can be made available on

request. Variations to the standard screening can be

accommodated. Consult IR Santa Clara for special

requirements.

AMA28XXS SERIES

PD - 94687A

The AMA28XXS has been designed for high density

using chip and wire hybrid technology that complies

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

physical configuration of the AMA28XXS series permits

mounting directly to a heat conduction 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. Advanced Analog’s

rugged ceramic seal pins are used exclusively in the

package thereby assuring long term hermeticity.