Product details


Number of channels (#) 1 Vin (Min) (V) 1 Vin (Max) (V) 3.6 Imax (A) 0.5 Ron (Typ) (mOhm) 83 Shutdown current (ISD) (Typ) (uA) 0.137 Quiescent current (Iq) (Typ) (uA) 0.204 Soft start Fixed Rise Time Rise time (Typ) (us) 25 Current limit type None Features Inrush current control Operating temperature range (C) -40 to 85 open-in-new Find other Load switches

Package | Pins | Size

DSBGA (YFP) 4 0 mm² .8 x .8 open-in-new Find other Load switches


  • Integrated P-Channel Load Switch
  • Low Input Voltage: 1 V to 3.6 V
  • ON-Resistance (Typical Values)
    • rON = 78 mΩ at VIN = 3.6 V
    • rON = 93 mΩ at VIN = 2.5 V
    • rON = 109 mΩ at VIN = 1.8 V
    • rON = 146 mΩ at VIN = 1.2 V
  • 500 mA Maximum Continuous Switch Current
  • Quiescent Current: 82 nA at 1.8 V
  • Shutdown Current: 44 nA at 1.8 V
  • Low Control Input Thresholds Enable Use of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
  • Controlled Slew Rate to Avoid Inrush Currents
    • tr = 40 µs at VIN = 1.8 V (TPS22901/2)
    • tr = 220 µs at VIN = 1.8 V (TPS22902B)
  • Quick Output Discharge (TPS22902/2B)
  • ESD Performance Tested Per JESD 22
    • 2000-V Human Body Model (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Four-Pin Wafer-Chip-Scale DSBGA Package
    • 0.8-mm × 0.8-mm, 0.4-mm Pitch, 0.5-mm Height (YFP)
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The TPS22901, TPS22902, and TPS22902B are small, low ON-resistance (rON) load switches with a controlled turnon. These devices contain a P-channel MOSFET that operates over an input voltage range of 1.0 V to 3.6 V. The switch is controlled by an on/off input (ON), which can interface directly with low-voltage control signals. In the TPS22902 and TPS22902B, an 88-Ω on-chip load resistor is added for output quick discharge when the switch is turned off.

The TPS22901, TPS22902, and TPS22902B are available in a space-saving 4-pin DSBGA (YFP) with 0.4-mm pitch. These 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. E) Sep. 24, 2020
Application note Load Switch Thermal Considerations (Rev. A) Oct. 11, 2018
Application note Basics of Load Switches (Rev. A) Sep. 05, 2018
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical article How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical article How and why you should use load switches for power sequencing Feb. 06, 2018
Technical article How to use load switches and eFuses in your set-top box design 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 Dec. 09, 2016
Application note Managing Inrush Current (Rev. A) May 28, 2015
User guide TPS22901/02/02B Evaluation Module (Rev. A) Mar. 27, 2009

Design & development

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

Hardware development

document-generic User guide

The TPS22901/02/02B evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22901/02/02B load switch. This EVM operates over a 1 V to 3.6 V range and provides a continuous output current of up to 110 mA. Additional open resistor and capacitor footprints allow for the (...)

  • Input voltage range: 1 V to 3.6 V
  • 500 mA max output current
  • Access to VIN, VOUT, and ON
  • Jumpers to select input capacitance, output capacitance and output resistance

Design tools & simulation

SLVM834A.ZIP (37 KB) - PSpice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Xilinx Kintex UltraScale XCKU040 FPGA Power Solution, 6W Reference Design
PMP10630 The PMP10630 reference design is a complete high density power solution for Xilinx® Kintex® UltraScale™ XCKU040 FPGA. This design uses an optimal combination of SIMPLE SWITCHER® modules and LDOs to provide all the necessary voltage rails in a small solution size of 36 x 43 mm (1.4 (...)
document-generic Schematic
RF Sensor Node Development Platform for 6LoWPAN and 2.4 GHz Applications
TIDM-RF-SENSORNODE The RF Sensor Node Platform is intended as a miniature development platform for 6LoWPAN and 2.4 GHz applications. The platform has three on-board sensors which includes a 3-axis accelerometer, a temperature sensor and two light sensors. The RF Sensor Node Platform can be a stand-alone sensor node or (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
DSBGA (YFP) 4 View options

Ordering & quality

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