ET3137
General Description

The ET3137 advanced load management switches target applications requiring a highly integrated solution it disconnects loads powered from DC Power Rail (< 5.5V) with stringent off-state current targets. Each switch consists of slew-rate controlled low-impedance MOSFET Switch (40mΩ Typ) and other integrated analog features. The slew-rate controlled turn-on characteristic prevents inrush-current and the resulting excessive voltage droop on power rails.
These devices have exceptionally low off-state current drain (< 1μA max) which facilitate compliance in very low stand-by power applications. The input voltage range operates from 1.2V to 5.5V DC to fulfill a wide range of applications in consumer, optical, medical, storage, portable, and industrial device power management. Switch control is managed by a logic input (Active LOW) capable of interfacing directly with low voltage control signal/GPIO with no external pull-down resistor required.

Features
  • 1.2V to 5.5V Input Voltage Operating Range

  • Typical RDS(ON):

    -- 40mΩ at VIN=5.5V

    -- 50mΩ at VIN=3.3V

    -- 90mΩ at VIN=1.8V

    -- 180mΩ at VIN=1.2V

  • Slew Rate/Inrush Control with tR: 60us (Typ)

  • 2.2A Maximum Continuous Current Capability

  • Low < 1μA Off Switch Current

  • Logic CMOS IO meets JESD76 standard

  • ESD Protected: Above 8kV HBM, 2kV CDM


Applications
  • Smartphones, Tablet PC

  • HDD, Storage, and Solid State Memory Devices

  • SLR Digital Cameras

  • GPS and Navigation Equipment

  • Industrial Handheld and Enterprise Equipment


Pin Configuration

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Block Diagram

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Application Circuits

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Free sample application,Provide various solutions