TPS5430-Q1

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Automotive 5.5V to 36V, 500kHz Fixed Frequency 3A Buck Converter

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Product details

Parameters

Vin (Min) (V) 5.5 Vin (Max) (V) 36 Vout (Min) (V) 1.22 Vout (Max) (V) 31 Iout (Max) (A) 3 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

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 open-in-new Find other Buck converters (integrated switch)

Features

  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 3-A Continuous (4-A Peak) Output Current
  • High Efficiency up to 95% Enabled by 110-mΩ
    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 Overcurrent Limiting,
    Overvoltage Protection, and Thermal Shutdown
  • –40°C to 125°C Operating Junction Temperature
    Range
  • Available in Small Thermally Enhanced 8-Pin
    SOIC PowerPAD Package
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Description

The TPS5430-Q1 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 are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage lockout (UVLO) 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 enable (ENA) pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection (OVP), and thermal shutdown. To reduce design complexity and external component count, the TPS5430-Q1 feedback loop is internally compensated. The TPS5430-Q1 regulates a wide variety of power sources including 24-V buses.

The TPS5430-Q1 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and the WEBENCH® software tool 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 TPS5430-Q1 3-A Wide-Input-Range Step-Down Converter datasheet (Rev. D) Apr. 23, 2015
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

EVALUATION BOARD Download
document-generic User guide
49
Description

The TPS5430EVM-173 evaluation module allows the designer to evaluate the TPS5430 SWIFT DC/DC converter and is designed with external components to operate over a wide input voltage range. The input voltage range of this module is 9.0 V to 36 V and the output voltage is pre-set to 5 V (...)

Features
  • Internally compensated for lower parts count
  • 500 kHz switching frequency allows smaller filter components
  • Greater than 90% efficiency
  • 2% regulation accuracy
  • Supported by SWIFT Designer software tool for quick and easy design

Design tools & simulation

SIMULATION MODEL Download
SLVM006A.TSC (696 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM008A.TSC (8869 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVM095.TSM (12 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SLVM096.TSC (2089 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SLVMAC8.ZIP (359 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCU8.ZIP (5 KB) - PSpice 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
  • (...)

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

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  • Qualification summary
  • Ongoing reliability monitoring

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