Product details


Number of channels (#) 1 Vin (Min) (V) 1.6 Vin (Max) (V) 5.5 Imax (A) 1.5 Ron (Typ) (mOhm) 90 Shutdown current (ISD) (Typ) (uA) 0.002 Quiescent current (Iq) (Typ) (uA) 8 Soft start Fixed Rise Time Rise time (Typ) (us) 1280 Features Inrush current control, Quick output discharge, Thermal shutdown Operating temperature range (C) -40 to 125 open-in-new Find other Load switches

Package | Pins | Size

SOT-SC70 (DCK) 6 4 mm² 2 x 2.1 open-in-new Find other Load switches


  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input operating voltage range (VIN):
    1.6 V to 5.5 V
  • Maximum continuous current (IMAX): 1.5 A
  • On-Resistance (RON):
    • 5-V VIN: 89 mΩ (typical)
    • 3.6-V VIN: 90 mΩ (typical)
    • 1.8-V VIN: 105 mΩ (typical)
  • Output short protection (ISC): 3 A (typical)
  • Low power consumption:
    • ON state (IQ): 8 µA (typical)
    • OFF state (ISD): 2 nA (typical)
  • Smart ON pin pull down (RPD):
    • ON ≥ VIH (ION): 100 nA (maximum)
    • ON ≤ VIL (RPD): 530 kΩ (typical)
  • Slow Turn ON timing to limit inrush current (tON):
    • 5.0 V Turn ON time (tON):
      1.95 ms at 3.2 mV/µs
    • 3.6 V Turn ON time (tON):
      1.75 ms at 2.7 mV/µs
    • 1.8 V Turn ON time (tON):
      1.5 ms at 1.8 mV/µs
  • Adjustable output discharge and fall time:
    • Internal QOD resistance = 24 Ω (typical)
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The TPS22919-Q1 device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven High (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.

The TPS22919-Q1 load switch is also self-protected, meaning that it protects against short circuit events on the output of the device. It also has thermal shutdown protection to prevent any damage from overheating.

TPS22919-Q1 is available in a standard SC-70 package characterized for operation over a junction temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet TPS22919-Q1 5.5 V, 1.5 A, 90-mΩ Self-Protected Load Switch datasheet (Rev. A) Jun. 30, 2020
E-book 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Application note Making the Switch to an Integrated Load Switch Jun. 11, 2019
Application note Load Switch Thermal Considerations (Rev. A) Oct. 11, 2018
Application note Basics of Load Switches (Rev. A) Sep. 05, 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
Technical article Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016

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 TPS22919 evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22919 load switch. The TPS22919EVM allows users to apply different input voltages (1.6 V to 5.5 V) under different loading conditions (0 A to 1.5 A) to the TPS22919 device. Parameters such as the (...)

  • Input Voltage Range: 1.6 V to 5.5 V
  • Input Current Range: 0 A to 1.5 A
  • Access to the VIN, VOUT, GND, QOD and ON pins
  • Ability to adjust the QOD resistance using on board jumpers
  • VIN and VOUT Sense connections for measuring RON or rise time

Design tools & simulation

SLVMCW8A.ZIP (51 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
  • (...)

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 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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