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TPS22954

ACTIVE

5.7-V, 5-A, 14-mΩ load switch with adj. rise time, -Voltage monitoring and output discharge

Product details

Number of channels 1 Vin (min) (V) 0.7 Vin (max) (V) 5.7 Imax (A) 5 Ron (typ) (mΩ) 14 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 34 Soft start Adjustable Rise Time Current limit type None Features Power good signal, Quick output discharge, Thermal shutdown, Under voltage lock out Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Power good signal, Reverse current blocking, Thermal shutdown
Number of channels 1 Vin (min) (V) 0.7 Vin (max) (V) 5.7 Imax (A) 5 Ron (typ) (mΩ) 14 Shutdown current (ISD) (typ) (µA) 0.01 Quiescent current (Iq) (typ) (µA) 34 Soft start Adjustable Rise Time Current limit type None Features Power good signal, Quick output discharge, Thermal shutdown, Under voltage lock out Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Power good signal, Reverse current blocking, Thermal shutdown
WSON (DQC) 10 6 mm² 3 x 2 WSON (DSQ) 10 4 mm² 2 x 2
  • Integrated Single Channel Load Switch
  • Input Voltage Range: 0.7 V to 5.7 V
  • RON Resistance
    • RON = 14 mΩ at VIN = 5 V (VBIAS = 5 V)
  • 5-A Maximum Continuous Switch Current
  • Adjustable Undervoltage Lockout Threshold (UVLO)
  • Adjustable Voltage Supervisor with Power Good (PG) Indicator
  • Adjustable Output Slew Rate Control
  • Enhanced Quick Output Discharge Remains Active after Power is Removed (TPS22954 Only)
    • 15 Ω (Typ) Discharges 100 µF Within 10 ms
  • Reverse Current Blocking when Disabled (TPS22953 Only)
  • Automatic Restart after Supervisor Fault Detection When Enabled
  • Thermal Shutdown
  • Low Quiescent Current ≤ 50 µA
  • SON 10-pin Package with Thermal Pad
  • ESD Performance Tested Per JESD 22
    • 2-kV HBM and 750-V CDM
  • Integrated Single Channel Load Switch
  • Input Voltage Range: 0.7 V to 5.7 V
  • RON Resistance
    • RON = 14 mΩ at VIN = 5 V (VBIAS = 5 V)
  • 5-A Maximum Continuous Switch Current
  • Adjustable Undervoltage Lockout Threshold (UVLO)
  • Adjustable Voltage Supervisor with Power Good (PG) Indicator
  • Adjustable Output Slew Rate Control
  • Enhanced Quick Output Discharge Remains Active after Power is Removed (TPS22954 Only)
    • 15 Ω (Typ) Discharges 100 µF Within 10 ms
  • Reverse Current Blocking when Disabled (TPS22953 Only)
  • Automatic Restart after Supervisor Fault Detection When Enabled
  • Thermal Shutdown
  • Low Quiescent Current ≤ 50 µA
  • SON 10-pin Package with Thermal Pad
  • ESD Performance Tested Per JESD 22
    • 2-kV HBM and 750-V CDM

The TPS22953/54 are small, single channel load switches with controlled turn on. The devices contain a N-channel MOSFET that can operate over an input voltage range of 0.7 V to 5.7 V and can support a maximum continuous current of 5 A.

The integrated adjustable undervoltage lockout (UVLO) and adjustable power good (PG) threshold provides voltage monitoring as well as robust power sequencing. The adjustable rise time control of the device greatly reduces inrush current for a wide variety of bulk load capacitances, thereby reducing or eliminating power supply droop. The switch is independently controlled by an on and off input (EN), which is capable of interfacing directly with low-voltage control signals. A 15-Ω on-chip load is integrated into the device for a quick discharge of the output when switch is disabled. The enhanced Quick Output Discharge (QOD) remains active for short time after power is removed from the device to finish discharging the output.

The TPS22953/54 are available in small, space-saving 10-SON packages with integrated thermal pad allowing for high power dissipation. The device is characterized for operation over the free-air temperature range of –40°C to +105°C.

The TPS22953/54 are small, single channel load switches with controlled turn on. The devices contain a N-channel MOSFET that can operate over an input voltage range of 0.7 V to 5.7 V and can support a maximum continuous current of 5 A.

The integrated adjustable undervoltage lockout (UVLO) and adjustable power good (PG) threshold provides voltage monitoring as well as robust power sequencing. The adjustable rise time control of the device greatly reduces inrush current for a wide variety of bulk load capacitances, thereby reducing or eliminating power supply droop. The switch is independently controlled by an on and off input (EN), which is capable of interfacing directly with low-voltage control signals. A 15-Ω on-chip load is integrated into the device for a quick discharge of the output when switch is disabled. The enhanced Quick Output Discharge (QOD) remains active for short time after power is removed from the device to finish discharging the output.

The TPS22953/54 are available in small, space-saving 10-SON packages with integrated thermal pad allowing for high power dissipation. 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 TPS2295x 5.7 V, 5 A, 14 mΩ On-Resistance Load Switch datasheet (Rev. D) PDF | HTML 16 Sep 2016
Application note Load Switch Thermal Considerations (Rev. A) 11 Oct 2018
Application note Basics of Load Switches (Rev. A) 05 Sep 2018
Application note Selecting a Load Switch to Replace a Discrete Solution 30 Apr 2017
Application note Timing of Load Switches 27 Apr 2017
Analog Design Journal 2Q 2016 Analog Applications Journal Issue 26 Apr 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
User guide TPS22953/54 User’s Guide 25 Feb 2015

Design & development

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

Evaluation board

TPS22954EVM — TPS22954 5.5V, 14mΩ On-Resistance Load Switch Evaluation Module

The TPS22954 device is a single channel low RON load switch with an operating voltage range of 0.7 V to 5.7 V. Both package versions DSQ (0.4mm pin pitch) and DQC (0.5mm pin pitch) of the TPS22954 are available on the TPS22954EVM for evaluation. The TPS22954 integrates a voltage supervisor which (...)

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

TPS22954 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAQ5A.ZIP (54 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-00399 — SSD Power Delivery Reference Design

The TIDA-00399 design implements a complete power delivery solution for an SSD in the M.2 form factor. The TPS22954 load switch is used to limit inrush current and eliminate the need for a separate supervisor circuit on the system input. This design is tested and includes GUI, demo, and User's (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DQC) 10 Ultra Librarian
WSON (DSQ) 10 Ultra Librarian

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