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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) 52 Shutdown current (ISD) (Typ) (uA) 0.5 Quiescent current (Iq) (Typ) (uA) 8.7 Soft start Adjustable Rise Time Rise time (Typ) (us) 135 Features Inrush current control, Quick output discharge Operating temperature range (C) -40 to 105 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

  • Integrated Single Channel Load Switch
  • Ambient Operating Temperature: –40°C to +105°C
  • Input Voltage Range: 1 V to 5.5 V
  • On-Resistance (RON)
    • RON = 52 mΩ (typical) at VIN = 5 V
    • RON = 53 mΩ (typical) at VIN = 3.3 V
  • 2-A Maximum Continuous Switch Current
  • Low Quiescent Current
    • 8.3 µA (typical) at VIN = 3.3 V
  • Low-Control Input-Threshold Enables Use of 1 V or Higher GPIO
  • Adjustable Quick-Output Discharge (QOD)
  • Configurable Rise Time With CT Pin
  • Small SOT23-6 Package (DBV)
    • 2.90-mm × 2.80-mm, 0.95-mm Pitch,
      1.45 mm Height (with leads)
  • ESD Performance Tested per JESD 22
    • ±2-kV HBM and ±1-kV CDM
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Description

The TPS22918 is a single-channel load switch with configurable rise time and configurable quick output discharge. The device contains an N-channel MOSFET that can operate over an input voltage range of 1 V to 5.5 V and can support a maximum continuous current of 2 A. The switch is controlled by an on and off input, which is capable of interfacing directly with low-voltage control signals.

The configurable rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating power supply droop. The TPS22918 features a configurable quick output discharge (QOD) pin, which controls the fall time of the device to allow design flexibility for power down and sequencing.

The TPS22918 is available in a small, leaded SOT-23 package (DBV) which allows visual inspection of solder joints. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

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Technical documentation

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Type Title Date
* Data sheet TPS22918 5.5-V, 2-A, 52-mΩ On-Resistance Load Switch datasheet (Rev. C) Jun. 14, 2017
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
Application note Basics of Power Switches (Rev. A) Apr. 26, 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
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 Fundamentals of On-Resistance in Load Switches Jun. 09, 2016
Application note Quiescent Current vs Shutdown Current for Load Switch Power Consumption Mar. 30, 2016
User guide TPS22918 Load Switch Evaluation Module User's Guide Mar. 15, 2016
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

EVALUATION BOARD Download
document-generic User guide
25
Description

The TPS22918 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22918 load switch. The TPS22918EVM allows the user to apply different input voltages (1 V to 5.5 V) under different loading conditions (0 A to 2 A) to the TPS22918. Parameters such as the (...)

Features
  • Input voltage range: 1 V to 5.5 V
  • Input Current Range: 0 A to 2 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 VIN, VOUT, RON or rise time

Design tools & simulation

SIMULATION MODEL Download
SLVMBI6A.ZIP (51 KB) - PSpice Model
SIMULATION MODEL Download
SLVMBY8.TSC (130 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMBY9.ZIP (23 KB) - TINA-TI Spice Model
SIMULATION TOOL 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
Mobile Point of Sale (mPOS) Power Reference Design
TIDA-00818 The TIDA-00818 is mobile point of sale (mPOS) reference design features a 1S1P Li-Ion battery architecture to reduce system size and cost. Integrated load switches are used to reduce standby power consumption and maximize battery life to enable the single-cell architecture. A USB Type-C charging (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Sequencing Reference Design Using Load Switches
TIDA-01584 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 digital (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Power Switching Reference Design for Set Top Box
TIDA-01451 The TIDA-01451 reference design’s functionality emulates the power distribution of Set Top Boxes. By using integrated load switches to control power rails, each rail can be turned on or off depending on the needs and wants of the user. Turning off rails that are not being used reduces power (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Status Indication Reference Design With LED and Audio Feedback
TIDA-03026 — The TIDA-03026 reference design functionality emulates status indication subsystems in various end equipments. By putting multiple LED drivers in parallel, an array of RGB LEDs can be synchronized to blink, pulse, and breathe - enhancing customer experience. Audio feedback is also integrated to (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

Information included:
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  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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