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TPS22929D

ACTIVE

5.5-V, 1.8-A, 115-mΩ load switch with output discharge

Product details

Number of channels 1 Vin (min) (V) 1.4 Vin (max) (V) 5.5 Imax (A) 1.8 Ron (typ) (mΩ) 115 Shutdown current (ISD) (typ) (µA) 10 Quiescent current (Iq) (typ) (µA) 2 Soft start Fixed Rise Time Current limit type None Features Quick output discharge, Reverse current protection, Under voltage lock out Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
Number of channels 1 Vin (min) (V) 1.4 Vin (max) (V) 5.5 Imax (A) 1.8 Ron (typ) (mΩ) 115 Shutdown current (ISD) (typ) (µA) 10 Quiescent current (Iq) (typ) (µA) 2 Soft start Fixed Rise Time Current limit type None Features Quick output discharge, Reverse current protection, Under voltage lock out Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Inrush current control, Reverse current blocking
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Integrated Single Load Switch
  • Small SOT23-6 Package
  • Input Voltage Range: 1.4 V to 5.5 V
  • Low ON-Resistance
    • rON = 115 mΩ at VIN = 5 V
    • rON = 115 mΩ at VIN = 3.3 V
    • rON = 118 mΩ at VIN = 2.5 V
    • rON = 129 mΩ at VIN = 1.5 V
  • 1.8-A Continuous Switch Current (25°C)
  • Low Threshold Control Input
  • Controlled Slew-rate
  • Under-Voltage Lock Out
  • Quick Output Discharge
  • Reverse Current Protection
  • Integrated Single Load Switch
  • Small SOT23-6 Package
  • Input Voltage Range: 1.4 V to 5.5 V
  • Low ON-Resistance
    • rON = 115 mΩ at VIN = 5 V
    • rON = 115 mΩ at VIN = 3.3 V
    • rON = 118 mΩ at VIN = 2.5 V
    • rON = 129 mΩ at VIN = 1.5 V
  • 1.8-A Continuous Switch Current (25°C)
  • Low Threshold Control Input
  • Controlled Slew-rate
  • Under-Voltage Lock Out
  • Quick Output Discharge
  • Reverse Current Protection

The TPS22929D is a small, low rON load switch with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22929D is active high enable.

The TPS22929D contains a 150-Ω on-chip load resistor for quick output discharge when the switch is turned off. The rise time of the device is internally controlled in order to avoid inrush current.

The TPS22929D device provides circuit breaker functionality by latching off the power-switch during reverse voltage situations. An internal reverse voltage comparator disables the power-switch when the output voltage (VOUT) is driven higher than the input (VIN) to quickly (10 µs typ) stop the flow of current towards the input side of the switch. Reverse current is always active, even when the power-switch is disabled. Additionally, under-voltage lockout (UVLO) protection turns the switch off if the input voltage is too low.

The TPS22929D is available in a small, space-saving 6-pin SOT23 package and is characterized for operation over the free-air temperature range of –40°C to 85°C.

The TPS22929D is a small, low rON load switch with controlled turn on. The device contains a P-channel MOSFET that can operate over an input voltage range of 1.4 V to 5.5 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22929D is active high enable.

The TPS22929D contains a 150-Ω on-chip load resistor for quick output discharge when the switch is turned off. The rise time of the device is internally controlled in order to avoid inrush current.

The TPS22929D device provides circuit breaker functionality by latching off the power-switch during reverse voltage situations. An internal reverse voltage comparator disables the power-switch when the output voltage (VOUT) is driven higher than the input (VIN) to quickly (10 µs typ) stop the flow of current towards the input side of the switch. Reverse current is always active, even when the power-switch is disabled. Additionally, under-voltage lockout (UVLO) protection turns the switch off if the input voltage is too low.

The TPS22929D is available in a small, space-saving 6-pin SOT23 package and is characterized for operation over the free-air temperature range of –40°C to 85°C.

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Technical documentation

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Type Title Date
* Data sheet TPS22929D Ultra-Small, Low on Resistance Load Switch With Controlled Turn-on datasheet (Rev. A) PDF | HTML 30 Jun 2014
E-book 11 Ways to Protect Your Power Path 03 Jul 2019
Application note Load Switch Thermal Considerations (Rev. A) 11 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Selecting a Load Switch to Replace a Discrete Solution 30 Apr 2017
Application note Timing of Load Switches 27 Apr 2017
Application note Managing Inrush Current (Rev. A) 28 May 2015
EVM User's guide TPS2292xxEVM-661 22 Sep 2011

Design & development

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

Evaluation board

TPS22929DEVM-661 — TPS22929D Low-Input Voltage, 1.8A Single-Channel Load Switch Evaluation Module

The TPS2292xxEVM-661 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS22929 Low Input Voltage, 1.8A Single Channel Load Switch with Controlled Turn-On. The EVM allows the user to apply different input voltages (1.4 V to 5.5 V) under different loading conditions (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS22929D TINA-TI Transient Reference Design

SLVMCC4.TSC (1678 KB) - TINA-TI Reference Design
Simulation model

TPS22929D TINA-TI Transient Spice Model (Rev. A)

SLVMCC3A.ZIP (17 KB) - TINA-TI Spice Model
Simulation model

TPS22929D Unencrypted PSpice Transient Model Package (Rev. A)

SLVM939A.ZIP (47 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

PMP22125 — Battery back-up switch, charger and monitor reference design

A complete battery back-up, charger and monitoring is implemented with this reference design.  It includes switching between a 12/24-Vdc source and 12/24-V lead acid battery, constant current battery charging at 1A typical, battery maintenance float charge and monitoring circuits for the (...)
Test report: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBV) 6 View options

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