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TPS22918

ACTIVE

5.5-V, 2-A, 52-mΩ load switch with adj. rise time and adj. output discharge

Product details

Product type Load switches Current limit type None Vin (max) (V) 5.5 Vin (min) (V) 1 Imax (A) 2 Rating Catalog Features Inrush current control, Quick output discharge Number of channels 1 Quiescent current (Iq) (typ) (µA) 8.7 Shutdown current (ISD) (typ) (µA) 0.5 Soft start Adjustable Rise Time Ron (typ) (mΩ) 52 Operating temperature range (°C) -40 to 105
Product type Load switches Current limit type None Vin (max) (V) 5.5 Vin (min) (V) 1 Imax (A) 2 Rating Catalog Features Inrush current control, Quick output discharge Number of channels 1 Quiescent current (Iq) (typ) (µA) 8.7 Shutdown current (ISD) (typ) (µA) 0.5 Soft start Adjustable Rise Time Ron (typ) (mΩ) 52 Operating temperature range (°C) -40 to 105
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Integrated Single Channel Load Switch
  • Ambient Operating Temperature: –40°C to +105°C
  • Input Voltage Range: 1 V to 5.5 V
  • On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Adjustable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
      1.45 mm Height (with leads)
  • ESD Performance Tested per JESD 22
    • ±2-kV HBM and ±1-kV CDM
  • Integrated Single Channel Load Switch
  • Ambient Operating Temperature: –40°C to +105°C
  • Input Voltage Range: 1 V to 5.5 V
  • On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Adjustable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
      1.45 mm Height (with leads)
  • ESD Performance Tested per JESD 22
    • ±2-kV HBM and ±1-kV CDM

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS22918 5.5-V, 2-A, 52-mΩ On-Resistance Load Switch datasheet (Rev. C) PDF | HTML Jun 14, 2017
E-book 11 Ways to Protect Your Power Path Jul 3, 2019
Application brief Making the Switch to an Integrated Load Switch Jun 11, 2019
Application note Integrated Load Switches Versus Discrete MOSFETs (Rev. A) May 6, 2019
Application note Basics of Power Switches (Rev. A) PDF | HTML Apr 26, 2019
Application note Load Switch Thermal Considerations (Rev. A) Oct 11, 2018
Application note Basics of Load Switches (Rev. A) Sep 5, 2018
Technical article How and why you should use load switches for power sequencing PDF | HTML Feb 6, 2018
Technical article How to use load switches and eFuses in your set-top box design PDF | HTML Nov 23, 2017
Application note Selecting a Load Switch to Replace a Discrete Solution Apr 30, 2017
Application note Timing of Load Switches Apr 27, 2017
Technical article Don’t leave it floating! Power off your outputs with quick output discharge PDF | HTML Dec 9, 2016
Application note Fundamentals of On-Resistance in Load Switches Jun 9, 2016
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption Mar 30, 2016
Technical article When to use load switches in place of discrete MOSFETs PDF | HTML Feb 3, 2016
Application note Managing Inrush Current (Rev. A) May 28, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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Evaluation board

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The TPS22918 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22918 load switch. The TPS22918EVM allows the user to apply different input voltages (1 V to 5.5 V) under different loading conditions (0 A to 2 A) to the TPS22918. Parameters such as the (...)

User guide: PDF
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SLVMBY9.ZIP (23 KB) - TINA-TI Spice model
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Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian

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