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CS9729 - Power Distribution Switches

General Description

The CS9729 is an integrated 100mΩ power switch for self-powered and bus-powered Universal Series Bus (USB) applications.

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

Key Features

  • z 100mΩ Typ. High-Side N-MOSFET z Guaranteed 1.1A Continuous Current z 1.5A Current Limit z Small SOT-23-5 Package Minimizes Board Space z Soft Start z Thermal Protection z Low 23µA Supply Current z Wide Input Voltage Range : 2.2V to 6V z UL Approved - #E219878 z RoHS Compliant and Halogen Free.

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Datasheet Details

Part number CS9729
Manufacturer Richtek
File Size 195.52 KB
Description Power Distribution Switches
Datasheet download datasheet CS9729 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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CS9729 100mΩ Power Distribution Switches General Description The CS9729 is an integrated 100mΩ power switch for self-powered and bus-powered Universal Series Bus (USB) applications. A built-in charge pump is used to drive the N-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 (23µA) and small package (SOT-23-5) is particularly suitable in batterypowered portable equipment. Several protection functions include soft start to limit inrush current during plug-in, current limiting at 1.5A to meet USB power requirement, and thermal shutdown to protect damage under over current conditions.