Description
The ATO28XXT Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to the nominal input requirements of MIL-STD-704D, these devices have nominal 28VDC inputs with +5V and ±12V or +5V and ±15V triple outputs to satisfy a wide range of requirements. The circuit design incorporates a pulse width modulated push-pull topology operating in the feed-forward mode at a nominal switching frequency of 250KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits.

Features
■ 16V to 40VDC Input Range (28VDC Nominal)
■ 5V, ±12V or 5V, ±15V Outputs Available
■ Indefinite Short Circuit and Overload Protection
■ 15W Output Power
■ Fast Loop Response for Superior Transient Characteristics
■ Operating Temperature Range from -55°C to +125°C Available
■ Popular Industry Standard Pin-out
■ Resistance Seam Welded Case for Superior Long Term Hermeticity
■ Efficiencies up to 81%
■ Shutdown from External Signal
■ 200,000 Hour MTBF at 85°C
■ Standard Microcircuit Drawings Available