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RT9731B Datasheet Dual Channel Precision Adjustable Current Limited Power Switch

Manufacturer: Richtek

Overview: ® RT9731A/B Dual Channel Precision Adjustable Current Limited Power Switch.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The RT9731A/B is a dual channel power distribution switch intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered.

This device offers a programmable current limit threshold between 560mA and 2.8A (typ.) per channel via an external resistor.

The power-switch's rising and falling times are controlled to minimize current surges during on/off transitions.

Key Features

  • 2.5V to 5.5V Input Voltage Range.
  • Two Separate Current Limiting Channels.
  • Meets USB Current Limiting Requirements.
  • Adjustable Current Limit from 560mA to 2.8A.
  • ±7.5% Current Limit Accuracy at 2.8A.
  • Two 44mΩ High Side MOSFETs.
  • 2μA Maximum Standby Supply Current.
  • Built-in Soft-Start.
  • Thin 10-Lead WDFN Package.
  • UL Approved.
  • E219878.
  • Nemko Approved-NO65969.
  • RoHS Compliant and Halogen Free.

More Datasheets from Richtek

Part Number Description
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RT9702A 500mA/1.1A High Side Power Switches
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RT9705A 1A Power Multiplexer
RT9705B 1A Power Multiplexer

RT9731B Distributor