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 105 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


  • 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 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 load switch is also self-protected, meaning that it will protect itself from short circuit events on the output of the device. It also has thermal shutdown to prevent any damage from overheating.

TPS22919 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 5.5 V, 1.5 A, 90-mΩ Self-Protected Load Switch with Controlled Rise Time datasheet (Rev. B) May 03, 2019
Application note Designing a Low-Cost, High-Accuracy Infrared Thermometer Nov. 25, 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 Integrated Load Switches Versus Discrete MOSFETs (Rev. A) May 06, 2019
Technical article What’s with chirping smoke detectors? Mar. 06, 2019
Application note Load Switch Thermal Considerations (Rev. A) Oct. 11, 2018
Application note Basics of Load Switches (Rev. A) Sep. 05, 2018
User guide TPS22919 Load Switch Evaluation Module May 03, 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
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.

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
  • (...)

Reference designs

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TIDA-010224 — This reference design provides a solution for a battery-operated wireless camera by combining industry-leading image processing, connectivity, sensor and power. High-efficiency power converters along with optimized system architecture help to increase battery life. The image
processor with a (...)
document-generic Schematic document-generic User guide
ADC-based, digitally-isolated, wide-input, 16-channel, AC/DC binary input reference design
TIDA-00420 This reference design showcases a cost-optimized and scalable ADC-based AC/DC binary input module (BIM) architecture with reinforced isolation. The 16 channels of a 10- or 12-bit SAR ADC are used for sensing multiple binary inputs. The op amps, in addition to keeping the cost per-channel low (...)
document-generic Schematic document-generic User guide
Protected DC-bus input power and control power supply reference design for low-voltage servo drives
TIDA-010070 — This reference design uses an ORing controller, the LM5050-1 to provide protection against reverse polarity and reverse current. In conjunction, the LM5069 hot swap controller is used for overcurrent, over voltage, under voltage protection, and inrush current limitation. The design also features (...)
document-generic Schematic document-generic User guide
Multi-rail TV power supply reference design, with flexible partitioning to maximize power savings
TIDA-050027 The TIDA-050027 reference design is a power distribution solution for Television (TV) platforms. By providing a configuration that emulates common voltage rails and peripherals, this design can be used as a reference design across multiple TV power architectures including LCD and OLED TV. On the (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 6 View options

Ordering & quality

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