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Product details

Parameters

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 Features Inrush Current Control, Quick Output Discharge, Reverse Current Protection Operating temperature range (C) -40 to 125 open-in-new Find other Load switches

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 open-in-new Find other Load switches

Features

  • 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 Pull Down (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)

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Description

The TPS22917 device is a small, single channel load switch utilizing 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. 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 ON pin is deliberately driven high (≥VIH), the Smart Pull Down (RPD) is disconnected to prevent unnecessary power loss.

The TPS22917 device is available in a small, 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
* Datasheet TPS22917 1 V–5.5-V, 2-A, 80-mΩ Ultra-Low Leakage Load Switch datasheet (Rev. A) Feb. 02, 2018
White papers 11 Ways to Protect Your Power Path white paper Jul. 03, 2019
Application notes Making the Switch to an Integrated Load Switch Jun. 11, 2019
Application notes Integrated Load Switches Versus Discrete MOSFETs (Rev. A) May 06, 2019
Application notes Load Switch Thermal Considerations (Rev. A) Oct. 11, 2018
Application notes Basics of Load Switches (Rev. A) Sep. 05, 2018
Technical articles How can a load switch extend your device’s battery life? Mar. 20, 2018
Technical articles How and why you should use load switches for power sequencing Feb. 06, 2018
Technical articles How to use load switches and eFuses in your set-top box design Nov. 23, 2017
User guides TPS22917 Load Switch Evaluation Module Oct. 05, 2017
Application notes Selecting a Load Switch to Replace a Discrete Solution Apr. 30, 2017
Application notes Timing of Load Switches Apr. 27, 2017
Technical articles Don’t leave it floating! Power off your outputs with quick output discharge Dec. 09, 2016
Application notes Fundamentals of On-Resistance in Load Switches Jun. 09, 2016
Application notes Quiescent Current vs Shutdown Current for Load Switch Power Consumption Mar. 30, 2016
Application notes 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

EVALUATION BOARDS Download
document-generic User guide
25
Description
The TPS22917 evaluation module (EVM) is an assembled and tested circuit for evaluating the TPS22916xx load switches. The TPS22917EVM allows the user to apply different input voltages (1.0 V to 5.5 V) under different loading conditions (0 A to 2 A) to the TPS22917 device.
Features
  • EVM enables evaluation of the TPS22917 load switch
  • VIN input voltage range: 1.0 V to 5.5 V.
  • EVM allows access to the VIN, VOUT, GND, and ON pin of the TPS22917 Load Switch Device
  • 2-A maximum continuous current operation
  • On board CIN and COUT capacitors

Design tools & simulation

SIMULATION MODELS Download
SLVMCE8.ZIP (4 KB) - PSpice Model
SIMULATION MODELS Download
SLVMCE9A.ZIP (6743 KB) - PSpice Model
SIMULATION TOOLS Download
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 (...)
Features
  • 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

REFERENCE DESIGNS Download
Isolated power architecture reference design for communication and analog input/output modules
TIDA-00300 This reference design provides a simple means through which to isolate I2C or SPI type communication lines. This is often required in Grid Infrastructure applications such as, protertion relays and circuit breakers, where high voltages are involved. This reference design provides the complete (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Non-isolated power architecture with diagnostics reference design for protection relay modules
TIDA-010055 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
TUV-assessed digital input reference design for IEC 61508 (SIL-2)
TIDA-010049 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Sequencing Reference Design Using Load Switches
TIDA-01584 — This 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 digital (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 6 View options

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