SR087 Datasheet Adjustable Off-Line Inductorless Switching Regulator

Manufacturer: Supertex Inc

SR087 adjustable off-line inductorless switching regulator by Supertex Inc - Datasheet Preview

Datasheet Details

Part number	SR087
Manufacturer	Supertex Inc
File Size	419.86 KB
Description	Adjustable Off-Line Inductorless Switching Regulator
Datasheet	SR087 Datasheet

General Description

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 regulator supplied by VOUT provides an additional fixed 5.0V output.

Overview

Supertex inc.

SR087 Adjustable Off-Line Inductorless Switching.

Key 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.
Less than 200mW standby power.

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