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SR086 - Adjustable Off-Line Inductorless Switching Regulator

Description

The Supertex SR086 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.

Features

  • Efficient operation without magnetics.
  • No high voltage capacitors.
  • Adjustable main output voltage (9.0 to 50V).
  • Additional 3.3V 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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Datasheet Details

Part number SR086
Manufacturer Supertex Inc
File Size 582.05 KB
Description Adjustable Off-Line Inductorless Switching Regulator
Datasheet download datasheet SR086 Datasheet

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Full PDF Text Transcription

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Supertex inc. SR086 Adjustable Off-Line Inductorless Switching Regulator Features ►►Efficient operation without magnetics ►►No high voltage capacitors ►►Adjustable main output voltage (9.0 to 50V) ►►Additional 3.3V internal regulator ►►Up to 100mA combined output current ►►Single BOM for 120VAC/230VAC ►►Built-in soft start ►►Less than 200mW standby power Applications ►► White goods ►► Household appliances ►► Lighting controls ►► Circuit breakers ►► Keep-alive supplies General Description The Supertex SR086 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.
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