Product details


Number of channels (#) 1 Vin (Min) (V) 0.9 Vin (Max) (V) 3.6 Imax (A) 2 Ron (Typ) (mOhm) 16 Shutdown current (ISD) (Typ) (uA) 0.13 Quiescent current (Iq) (Typ) (uA) 0.2 Soft start Fixed Rise Time Rise time (Typ) (us) 20, 137 Current limit type None Features Quick output discharge Operating temperature range (C) -40 to 85 open-in-new Find other Load switches

Package | Pins | Size

DSBGA (YFP) 6 1 mm² .8 x 1.2 DSBGA (YZP) 6 2 mm² .928 x 1.428 open-in-new Find other Load switches


  • Integrated P-Channel Load Switch
  • Input Voltage: 0.9 V to 3.6 V
  • ON-Resistance (Typical Values)
    • rON = 14 mΩ at VIN = 3.6 V
    • rON = 20 mΩ at VIN = 2.5 V
    • rON = 33 mΩ at VIN = 1.8 V
    • rON = 67 mΩ at VIN = 1.2 V
    • rON = 116 mΩ at VIN = 1.0 V
  • 2-A Maximum Continuous Switch Current
  • Quiescent Current:
    • Typical 78 nA at 1.8 V
  • Shutdown Current:
    • Typical 35 nA at 1.8 V
  • Low Threshold Control Input Enable the use of
    1.2 V, 1.8 V, 2.5 V, or 3.3 V Logic
  • Controlled Slew Rate to Avoid Inrush Currents
    • tR = 30 µs at VIN = 1.8 V
    • tR = 200 µs at VIN = 1.8 V
  • Quick Output Discharge (TPS22922/2B)
  • ESD Performance Tested Per JESD 22
    • 3000-V Human Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Six Terminal Wafer-Chip-Scale DSBGA Package
    (nominal dimensions shown - see Mechanical,
    Packaging, and Orderable Information
    for details)
    • 0.9-mm × 1.4-mm, 0.5-mm Pitch,
      0.5 mm Height (YZP)
    • 0.9-mm × 1.4-mm, 0.5-mm Pitch,
      0.625 mm Height (YZT)
    • 0.8-mm × 1.2-mm, 0.4-mm Pitch,
      0.5-mm Height (YFP)
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TPS22921, TPS22922, and TPS22922B are small, low rON load switches with controlled turnon. The TPS22921/2/2B contains a P-channel MOSFET that can operate over an input voltage range of 0.9 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 TPS22922 and in TPS22922B, a 65-Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The rise time (slew rate) of the device is internally controlled in order to avoid inrush current: TPS22921 and TPS22922 feature a 30-µs rise time, whereas TPS22922B is 200 µs.

TPS22921, TPS22922, and TPS22922B feature low quiescent and shutdown currents and are available in space-saving 6-pin wafer-chip-scale packages DSBGA (WCSP: YZP and YZT with 0.5-mm pitch and YFP with 0.4-mm pitch) which make them ideal for portable electronics. 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 TPS2292x 3.6-V, 2-A, 14-mΩ ON-Resistance Load Switch With Controlled Turnon datasheet (Rev. C) Oct. 29, 2014
Certificate TPS22992SEVM EU RoHS Declaration of Conformity (DoC) May 17, 2021
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 TPS22921/22/22B Evaluation Module Jan. 19, 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 TPS22921/22/22B evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22922B load switch. The TPS22921/22/22B EVM allows the user to apply different input voltages (0.9 V to 3.6 V) under different load condition’s up to 110 mA. Additional open resistor and (...)

  • Input voltage range: 0.9 V to 3.6 V
  • 110mA max output current
  • Access to the VIN, VOUT, and ON pins
  • Jumpers to select input capacitance, output capacitance and output resistance

Design tools & simulation

SLVMA61A.ZIP (44 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

Single Chip Drive for Industrial Communications and Motor Control
TIDEP0025 This reference design implements hardware interface based on the HEIDENHAIN EnDat 2.2 standard for position or rotary encoders. The platform also allows you to implement real-time EtherCAT communications standards in a broad range of industrial automation equipment. It enables designs with a low (...)
document-generic Schematic
ARM MPU with Integrated BiSS C Master Interface Reference Design
TIDEP0022 Implementation of BiSS C Master protocol on Industrial Communication Sub-System (PRU-ICSS). The design provides full documentation and source code for Programmable Realtime Unit (PRU).
document-generic Schematic
ARM MPU with Integrated HIPERFACE DSL Master Interface Reference Design
TIDEP0035 This reference design implements HIPERFACE DSL master protocol on Industrial Communication Sub-System (PRU-ICSS). The two-wire interface allows integration of position feedback wires into motor cable.  It consists of AM437x PRU-ICSS firmware and TIDA-00177 transceiver reference design.
document-generic Schematic
EnDat 2.2 System Reference Design
TIDEP0050 This reference design implements EnDat 2.2 Master protocol stack and hardware interface based on HEIDENHAIN EnDat 2.2 standard for position or rotary encoders. The design is composed of EnDat 2.2 Master protocol stack, half-duplex communications using RS-485 transceivers and the line termination (...)
document-generic Schematic
SSD Power Delivery Reference Design
TIDA-00399 The TIDA-00399 design implements a complete power delivery solution for an SSD in the M.2 form factor. The TPS22954 load switch is used to limit inrush current and eliminate the need for a separate supervisor circuit on the system input. This design is tested and includes GUI, demo, and User's (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
DSBGA (YFP) 6 View options
DSBGA (YZP) 6 View options

Ordering & quality

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  • MSL rating/Peak reflow
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  • Qualification summary
  • Ongoing reliability monitoring

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