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SGM2057 - Negative Charge Pump and Adjustable Regulator

General Description

The SGM2057 is a negative output charge pump which has an inside adjustable regulator.

The input voltage range is from 2.3V to 5.5V and the unregulated output equals to -VIN.

For the regulated output of the SGM2057, it equals to -VCTL and the range is from 0V to -VIN.

Key Features

  • Input Voltage Range: 2.3V to 5.5V.
  • Dual Outputs:.
  • VOUT1: -VIN (Unregulated Negative Charge Pump Output).
  • VOUT2: -VCTL between 0V and -VIN (Regulated Output).
  • Output Current Limit: 175mA (TYP).
  • Stable with Small Case Size Ceramic Capacitors.
  • Thermal Shutdown Protection.
  • No Inrush Current during Start-Up.
  • -40℃ to +125℃ Operating Temperature Range.
  • Available in a Green TQFN-1.8×1.4-10L Package.

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Datasheet Details

Part number SGM2057
Manufacturer SG Micro
File Size 1.05 MB
Description Negative Charge Pump and Adjustable Regulator
Datasheet download datasheet SGM2057 Datasheet

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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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SGM2057 Negative Charge Pump and Adjustable Regulator GENERAL DESCRIPTION The SGM2057 is a negative output charge pump which has an inside adjustable regulator. The input voltage range is from 2.3V to 5.5V and the unregulated output equals to -VIN. For the regulated output of the SGM2057, it equals to -VCTL and the range is from 0V to -VIN. The inrush current of the SGM2057 can be decreased by the internal soft-start circuit. For application case, four ceramic capacitors and no inductor are required, and it can be used for supplying optical modules, bias of RF amplifiers and sensors. The SGM2057 is available in a Green TQFN-1.8×1.4-10L package. It operates over an operating temperature range of -40℃ to +125℃. FEATURES ● Input Voltage Range: 2.3V to 5.