SR087 Datasheet (Supertex Inc) - Adjustable Off-Line Inductorless Switching Regulator

SR087, Adjustable Off-Line Inductorless Switching Regulator

The Supertex SR087 is an inductorless switching regulator designed to operate directly from a rectified AC line.

The operating principle is to turn on a pass transistor when the rectified AC is below the output voltage, and to turn it off when the output voltage reaches a specific level.

A linear re

SR087 Features

* Efficient operation without magnetics

* No high voltage capacitors

* Adjustable main output voltage (9.0 to 50V)

* Additional 5.0V internal regulator

* Up to 100mA combined output current

* Single BOM for 120VAC/230VAC

* Built-in soft start