Product details

Number of channels (#) 1 Vin (Min) (V) 1 Vin (Max) (V) 5.5 Imax (A) 2 Ron (Typ) (mOhm) 80 Shutdown current (ISD) (Typ) (uA) 0.01 Quiescent current (Iq) (Typ) (uA) 0.5 Soft start Adjustable Rise Time Rise time (Typ) (us) 55 Current limit type None Features Quick output discharge, Reverse current protection Operating temperature range (C) -40 to 125, -45 to 125
Number of channels (#) 1 Vin (Min) (V) 1 Vin (Max) (V) 5.5 Imax (A) 2 Ron (Typ) (mOhm) 80 Shutdown current (ISD) (Typ) (uA) 0.01 Quiescent current (Iq) (Typ) (uA) 0.5 Soft start Adjustable Rise Time Rise time (Typ) (us) 55 Current limit type None Features Quick output discharge, Reverse current protection Operating temperature range (C) -40 to 125, -45 to 125
SOT-23 (DBV) 6 5 mm² 2.9 x 1.6
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)
  • Input operating voltage range (VIN): 1 V to 5.5 V
  • Maximum continuous current (IMAX): 2 A
  • On-resistance (RON):
    • 5 VIN = 80 mΩ (typical)
    • 1.8 VIN = 120 mΩ (typical)
    • 1 VIN = 220 mΩ (typical)
  • Ultra-low power consumption:
    • ON state (IQ): 0.5 µA (typical)
    • OFF state (ISD): 10 nA (typical)
  • Smart ON pin pulldown (RPD):
    • ON ≥ VIH (ION): 10 nA (maximum)
    • ON ≤ VIL (RPD): 750 kΩ (typical)
  • Adjustable turn ON limits inrush current (tON):
    • 5-V tON = 100 µs at 72 mV/µs (CT = open)
    • 5-V tON = 4000 µs at 2.3 mV/µs (CT = 1000 pF)
  • Adjustable output discharge and fall time:
    • Optional QOD resistance ≥ 150 Ω (internal)
  • Always-ON true Reverse Current Blocking (RCB):
    • Activation current (IRCB): –500 mA (typical)
    • Reverse leakage (IIN,RCB): –1 µA (maximum)

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over a temperature range of –40°C to 125°C.

The TPS22917x device is a small, single channel load switch using a low leakage P-Channel MOSFET for minimum power loss. Advanced gate control design supports operating voltages as low as 1 V with minimal increase in ON-Resistance and power loss.

The Rise and Fall times can be independently adjusted with external components for system level optimizations. The timing capacitor (CT) and turn on time can be adjusted to manage inrush current without adding unnecessary system delays. The output discharge resistance (QOD) can be used to adjust the output fall time. Connect the QOD pin directly to the output for a fastest fall time or leave it open for the slowest fall time.

The switch ON state is controlled by a digital input that can interface directly with low-voltage control signals. The TPS22917 uses active high enable logic, while the TPS22917L uses active low. When power is first applied, a Smart Pulldown is used to keep the ON pin from floating until system sequencing is complete. After the ON pin is deliberately driven high (≥VIH), the Smart Pulldown (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917x device is available in a leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over a temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet TPS22917x 1 V–5.5-V, 2-A, 80-mΩ Ultra-Low Leakage Load Switch datasheet (Rev. B) 15 Dec 2021
E-book 11 Ways to Protect Your Power Path white paper 03 Jul 2019
Application note Making the Switch to an Integrated Load Switch 11 Jun 2019
Application note Integrated Load Switches Versus Discrete MOSFETs (Rev. A) 06 May 2019
Application note Load Switch Thermal Considerations (Rev. A) 11 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 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
User guide TPS22917 Load Switch Evaluation Module 05 Oct 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 Fundamentals of On-Resistance in Load Switches 09 Jun 2016
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption 30 Mar 2016
Application note Managing Inrush Current (Rev. A) 28 May 2015

Design & development

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

Evaluation board

HALL-TRIGGER-EVM — Evaluation module for contactless, Hall-effect variable-speed trigger with external field protection

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Evaluation board

TPS22917EVM — TPS22917 5.5V, 2A, 80mΩ On-Resistance Load Switch Evaluation Module

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Simulation model

TPS22917 Unencrypted PSpice Transient Model

SLVMCE8.ZIP (4 KB) - PSpice Model
Simulation model

TPS22917 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCE9A.ZIP (6743 KB) - PSpice Model
Simulation model

TPS22917L PSpice Model

SLVMDR5.ZIP (86 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Reference designs

TIDA-060032 — Contactless, Hall-effect variable-speed trigger reference design with external field protection

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The design (...)

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This reference design showcases non-isolated power supply architectures for protection relays with analog input/output and communication modules generated from 5-, 12-, or 24-V DC input. To generate the power supplies the design uses DC/DC converters with an integrated FET, a power module with an (...)
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TIDA-010049 — TUV-assessed digital input reference design for IEC 61508 (SIL-2)

This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been (...)
Reference designs

TIDA-01584 — Power Sequencing Reference Design Using Load Switches

The TIDA-01584 reference design demonstrates various power sequencing configurations using load switches. By using integrated load switches, the timing of each voltage rail can be adjusted independently. Each voltage rail can be controlled without extensive processor intervention or external (...)
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