Product details


Current limit (Min) (A) 0.5 Driver configuration High side Current limit type Adjustable Current limit accuracy +25/-25% Current sense accuracy +4/-4% @1A Features Adjustable current limit, Current sense/monitor, Inductive load compatibility, Inrush current control, Short circuit protection, Thermal shutdown, Under voltage lock out open-in-new Find other High-side switches

Package | Pins | Size

VQFN (RHF) 24 open-in-new Find other High-side switches


  • Low RON (45-mΩ typical) high-side switch for 24-V industrial applications
  • Wide DC operating voltage range: 6 V to 36 V
  • Low quiescent current (Iq) of 0.5 mA / channel from 24-V supply
  • Fixed (5.8 A) and adjustable (0.5 A to 4 A) current limiting
  • Dual current limit threshold for inrush current management
  • Drive inductive, capacitive, and resistive loads
    • Integrated output clamp to support inductive load discharge
    • Capacitive load drive minimizing peak inrush current through current limiting
  • Robust output protection
    • Thermal shutdown
    • Protection against short to ground events
    • Configurable fault handling
  • Enhanced diagnostic feature
    • Output load current measurement
    • Open load (off-state) detection
  • Package: 24-pin QFN (5 mm × 4 mm)
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TPS272C45 is a dual-channel smart high-side switch designed to meet the requirements of industrial control systems. The low RDSON (45 mΩ) minimizes device power dissipation driving a wide range (100 mA to 3 A) of output load current. TPS272C45A provides for an additional low voltage supply (3.3 V to 5 V) input pin to minimize no-load power dissipation. The device integrates protection features such as thermal shut down, output clamp, and overcurrent limit. These features improve system robustness during fault events such as short circuit.

TPS272C45 implements an adjustable (0.5 A to 4 A) current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also implements a configurable inrush current time period with a higher level of allowed current to drive high inrush current loads like lamps or for fast charging of capacitive loads. The device also provides an accurate load current sense that allows for improved load diagnostics enabling better predictive maintenance.

TPS272C45 is available in a small 24-pin, 5 mm × 4 mm QFN leadless package with 0.5 mm pin pitch minimizing the PCB footprint.

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Technical documentation

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Type Title Date
* Data sheet TPS272C45 45-mΩ, Dual-Channel Smart High-Side Switch with Diagnostics datasheet Dec. 17, 2020
Application note Common Application Use Cases for the TPS272C45 Smart Industrial High Side Switch Jun. 30, 2021
Application note Enabling SPI Communication Using TI's Smart High Side Switches (Rev. A) May 11, 2021
Technical article Bulk up your 24-VDC power distribution with industrial high-side switches May 04, 2021
Application note TPS272C45 Enables Smart Power Management of Remote I/Os Dec. 17, 2020
User guide TPS272C45 EVM User's Guide Dec. 07, 2020

Design & development

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Hardware development

document-generic User guide

The TPS272C45 evaluation module (EVM) is used to demonstrate and showcase all of the features of the underlying TPS272C45 industrial high-side switch. This evaluation board provides an easy way to connect a set of power supplies to the inputs of the TPS272C45, connect a load to the output, and (...)

  • Multiplexed current-limit configuration
  • BoosterPack plug-in module headers so power switch can be controlled by external microcontroller
  • Onboard 3.3-V LDO allowing for control signals to be manipulated by series of jumpers
  • Ideal board layout and copper area for thermal performance
  • Ability to support (...)

Software development

SLVC825.ZIP (47 KB)

Design tools & simulation

SLVMDJ0.ZIP (66 KB) - PSpice Model
SLVMDJ3.ZIP (66 KB) - PSpice Model
SLVMDJ7.ZIP (65 KB) - PSpice Model
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 (...)
  • 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
  • (...)

CAD/CAE symbols

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VQFN (RHF) 24 View options

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