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SR086 - Adjustable Offline Inductorless Switching Regulators

Description

The SR086/SR087 are inductorless switching regulators 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 (9V to 50V).
  • Additional Internal Linear Regulator: - 3.3V for SR086 - 5V for SR087.
  • Up to 100 mA Combined Output Current.
  • Single BOM for 120 VAC/230 VAC.
  • Built-in Soft Start.
  • Less than 200 mW Standby Power.

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Datasheet Details

Part number SR086
Manufacturer Microchip
File Size 560.93 KB
Description Adjustable Offline Inductorless Switching Regulators
Datasheet download datasheet SR086 Datasheet

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Other Datasheets by Microchip

Part Number Description
SR087 Adjustable Offline Inductorless Switching Regulators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SR086/SR087 Adjustable Offline Inductorless Switching Regulators Features • Efficient Operation without Magnetics • No High-voltage Capacitors • Adjustable Main Output Voltage (9V to 50V) • Additional Internal Linear Regulator: - 3.3V for SR086 - 5V for SR087 • Up to 100 mA Combined Output Current • Single BOM for 120 VAC/230 VAC • Built-in Soft Start • Less than 200 mW Standby Power Applications • White Goods • Household Appliances • Lighting Controls • Circuit Breakers • Keep-alive Supplies General Description The SR086/SR087 are inductorless switching regulators designed to operate directly from a rectified AC line.
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