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LPW5209 - 2.1A Power Switch

General Description

The LPW5209 is an integrated power switch for self-powered and bus-powered Universal Series Bus (USB) applications.

A built-in charge pump is used to drive the N-Channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off.

Key Features

  • 80mΩ Low RDS(ON), High-side N-MOSFET.
  • 2100mA Programmable current limit.
  • 2.5V to 6V Input Voltage.
  • Low Quiescent Current:30μA.
  • Soft Start Function.
  • Built-In Short-Circuit Protection.
  • Built-in Thermal Protection.
  • RoHS Compliant and 100% Lead (Pb)-Free Typical.

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Datasheet Details

Part number LPW5209
Manufacturer Low Power Semi
File Size 599.10 KB
Description 2.1A Power Switch
Datasheet download datasheet LPW5209 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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Preliminary Datasheet LPW5209 2.1A Power Switch with Programmable Current Limit General Description The LPW5209 is an integrated power switch for self-powered and bus-powered Universal Series Bus (USB) applications. A built-in charge pump is used to drive the N-Channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. Its low quiescent current (16μA) and small package (SOT23-5) is particularly suitable in battery-powered portable equipment. Several protection functions include soft start to limit inrush current during plug-in, current limiting at 2.1A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.