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US211 - HIGH-SIDE POWER SWITCHES

General Description

The UTC US211/A/B/C series are 80mΩ high-side power switches.

There’s internal single low voltage N-Channel MOSFET which makes it an ideal for all USB applications.

This MOSFET should be driven by a charge pump circuitry inside.

Key Features

  • ) N-Channel MOSFET.
  • Supply Current:.
  • Switch On : 25μA(Typ).
  • Switch Off : 1μA (Typ).
  • Load Current 500mA for US211 and 1.0A for US211A/B/C.
  • Input Voltage from 2V ~ 5.5V.
  • In Off-State: Output Voltage can be Higher than Input.

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Full PDF Text Transcription for US211 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for US211. For precise diagrams, and layout, please refer to the original PDF.

UNISONIC TECHNOLOGIES CO., LTD US211/A/B/C Preliminary CMOS IC HIGH-SIDE POWER SWITCHES WITH FLAG  DESCRIPTION The UTC US211/A/B/C series are 80mΩ high-side power switch...

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DESCRIPTION The UTC US211/A/B/C series are 80mΩ high-side power switches. There’s internal single low voltage N-Channel MOSFET which makes it an ideal for all USB applications. This MOSFET should be driven by a charge pump circuitry inside. Its switch on resistance is as low as 80mΩ which we know specially meets the drop voltage for USB applications. The flag pin can output an open-drain fault flag to next controller. There’re lots internal special ways for protecting the chip’s operation. When in hot-plug events, there’s large current which can create the upstream voltage droop to match the USB’s voltage droop requirement

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