Automotive 5.5V to 36V, 500kHz Fixed Frequency 1A Buck Converter


Product details


Vin (Min) (V) 5.5 Vin (Max) (V) 36 Vout (Min) (V) 1.22 Vout (Max) (V) 31 Iout (Max) (A) 1 Iq (Typ) (uA) 3000 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 500 Features Enable, Over Current Protection, Soft Start Fixed Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Buck converters (integrated switch)


  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 1-A Continuous (1.2-A Peak) Output Current
  • High Efficiency up to 95% enabled by 110-m
    Integrated MOSFET Switch
  • Wide Output Voltage Range: Adjustable Down
    to 1.22 V with 1.5% Initial Accuracy
  • Internal Compensation Minimizes External
    Parts Count
  • Fixed 500-kHz Switching Frequency for Small
    Filter Size
  • Improved Line Regulation and Transient
    Response by Input Voltage Feed Forward
  • System Protected by Over Current Limiting, Over
    Voltage Protection and Thermal Shutdown
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Available in Small 8-Pin SOIC Package
  • For SWIFT Documentation, Application Notes and Design
    Software, See the TI Website at
    • Consumer: Set-top Box, DVD, LCD Displays
    • Industrial and Car Audio Power Supplies
    • Battery Chargers, High Power LED Supply
    • 12-V/24-V Distributed Power Systems

SWIFT is a trademark of Texas Instruments.

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As a member of the SWIFT™ family of DC/DC regulators, the TPS5410 is a high-output-current PWM converter that integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features is a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5410 feedback loop is internally compensated.

The TPS5410 device is available in an easy to use 8-pin SOIC package. TI provides evaluation modules and software tools to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

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Technical documentation

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Type Title Date
* Data sheet TPS5410-Q1 1-A Wide Input Range Step-Down SWIFT(TM) Converter datasheet Sep. 26, 2009
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

document-generic User guide

The TPS5410EVM-203 evaluation module allows the designer to evaluate two different configurations of the TPS5410 SWIFT DC/DC converter on the same PCB over a wide input voltage range. The first design is a 14.5 to 36 V input to 12 V output at 1 A using a 47 µF tantalum (...)

  • Internally compensated for lower parts count
  • 500 kHz switching frequency allows smaller filter components
  • Greater than 90% efficiency
  • 2% regulation accuracy

Design tools & simulation

SLVMAK5.ZIP (208 KB) - PSpice Model
SLVMCU7.ZIP (5 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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SOIC (D) 8 View options

Ordering & quality

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