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TPS22946 - Current-Limited Load Switch

Description

The TPS22946 is an ultralow power load switch that provides protection to systems and loads in highcurrent conditions.

The device contains a 300-mΩ current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V.

Features

  • 1 Ultralow Quiescent Current 1 μA (Typical) at VIN = 1.8 V.
  • Input Voltage Range: 1.62 V to 5.5 V.
  • Low ON-Resistance.
  • rON = 300 mΩ at VIN = 5.5 V.
  • rON = 400 mΩ at VIN = 3.3 V.
  • rON = 500 mΩ at VIN = 2.5 V.
  • rON = 600 mΩ at VIN = 1.8 V.
  • Selectable Minimum Current Limit: 155 mA, 70 mA, or 30 mA.
  • Integrated Inrush Current Time-out (8 ms).
  • Shutdown Current: < 1 μA.
  • Thermal Shutdown.
  • Fault Blankin.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS22946 SLVS984B – SEPTEMBER 2009 – REVISED MARCH 2015 TPS22946 Ultralow Power, Low Input Voltage, Current-Limited Load Switch With Shutoff, Auto-Restart, and Overcurrent Condition Time-Out 1 Features •1 Ultralow Quiescent Current 1 μA (Typical) at VIN = 1.8 V • Input Voltage Range: 1.62 V to 5.5 V • Low ON-Resistance – rON = 300 mΩ at VIN = 5.5 V – rON = 400 mΩ at VIN = 3.3 V – rON = 500 mΩ at VIN = 2.5 V – rON = 600 mΩ at VIN = 1.8 V • Selectable Minimum Current Limit: 155 mA, 70 mA, or 30 mA • Integrated Inrush Current Time-out (8 ms) • Shutdown Current: < 1 μA • Thermal Shutdown • Fault Blanking • Auto Restart • Overcurrent Condition Time-out (Automatic Disable for Permanent Overcurrent) • 1.
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