TPS22903 is not recommended for new designs.
This product continues to be in production to support existing customers. Please consider one of these alternatives:
Same functionality with different pin-out to the compared device.
TPS22914 ACTIVE 5.5-V, 2-A, 37-mΩ load switch This product offers lower on-resistance 37-mΩ and higher current capability 2-A.

Product details

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  • Input Voltage: 1.1 V to 3.6 V
  • Ultralow ON-State Resistance
    • rON = 66 mΩ at VIN = 3.6 V
    • rON = 75 mΩ at VIN = 2.5 V
    • rON = 90 mΩ at VIN = 1.8 V
    • rON = 135 mΩ at VIN = 1.2 V
  • 500-mA Maximum Continuous Switch Current
  • Quiescent Current < 1 µA
  • Shutdown Current < 1 µA
  • Low Control Input Threshold Enables Use of 1.2-
    V, 1.8-V, 2.5-V, and 3.3-V Logic
  • Controlled Slew Rate (5 µs Maximum at 3.6 V)
  • Quick Output Discharge (TPS22904 Only)
  • ESD Performance Tested Per JESD 22
    • 2000-V Human Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • 4-Terminal Wafer Chip-Scale Package (WCSP)
    • 0.8 mm × 0.8 mm,
      0.4-mm Pitch, 0.5-mm Height
  • Input Voltage: 1.1 V to 3.6 V
  • Ultralow ON-State Resistance
    • rON = 66 mΩ at VIN = 3.6 V
    • rON = 75 mΩ at VIN = 2.5 V
    • rON = 90 mΩ at VIN = 1.8 V
    • rON = 135 mΩ at VIN = 1.2 V
  • 500-mA Maximum Continuous Switch Current
  • Quiescent Current < 1 µA
  • Shutdown Current < 1 µA
  • Low Control Input Threshold Enables Use of 1.2-
    V, 1.8-V, 2.5-V, and 3.3-V Logic
  • Controlled Slew Rate (5 µs Maximum at 3.6 V)
  • Quick Output Discharge (TPS22904 Only)
  • ESD Performance Tested Per JESD 22
    • 2000-V Human Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • 4-Terminal Wafer Chip-Scale Package (WCSP)
    • 0.8 mm × 0.8 mm,
      0.4-mm Pitch, 0.5-mm Height

The TPS22903 and TPS22904 are ultra-small, low rON single channel load switches with controlled turnon. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.1 V to 3.6 V. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals. In TPS22904, a 85-Ω on-chip load resistor is added for output quick discharge when switch is turned off.

TPS22903 and TPS22904 are available in a space-saving 4-terminal WCSP 0.4-mm pitch (YFP). The devices are characterized for operation over the free-air temperature range of –40°C to 85°C.

The TPS22903 and TPS22904 are ultra-small, low rON single channel load switches with controlled turnon. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.1 V to 3.6 V. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals. In TPS22904, a 85-Ω on-chip load resistor is added for output quick discharge when switch is turned off.

TPS22903 and TPS22904 are available in a space-saving 4-terminal WCSP 0.4-mm pitch (YFP). The devices are characterized for operation over the free-air temperature range of –40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet TPS2290x Ultra-Small Low-Input-Voltage Low rON Load Switch datasheet (Rev. D) 30 Jun 2015
Application note Load Switch Thermal Considerations (Rev. A) 11 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article How can a load switch extend your device’s battery life? 20 Mar 2018
Technical article How and why you should use load switches for power sequencing 06 Feb 2018
Technical article How to use load switches and eFuses in your set-top box design 23 Nov 2017
Application note Selecting a Load Switch to Replace a Discrete Solution 30 Apr 2017
Application note Timing of Load Switches 27 Apr 2017
Technical article Don’t leave it floating! Power off your outputs with quick output discharge 09 Dec 2016
Application note Managing Inrush Current (Rev. A) 28 May 2015

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