TPS5430-Q1 Datasheet PDF – 3A, Step-Down Converter

Part Number: TPS5430-Q1

Function: 3A, Wide-Input-Range Step-Down Converter

Package: SO PowerPAD (8) Type

Manufacturer: Texas Instruments

Image and Pinouts:

TPS5430-Q1 datasheet



As a member of the SWIFT family of dc/dc regulators, the TPS5430-Q1 is a high-output-current pulse-width modulation (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 feedback loop is internally compensated. The TPS5430 regulates a wide variety of power sources including 24-V buses. The TPS5430 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD package. TI provides evaluation modules and the SWIFT Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.


• 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
• –40°C to 125°C Operating Junction Temperature Range
• Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD™ Package


Other data sheets are available within the file: TPS5430Q1, TPS5430QDDARQ1


TPS5430-Q1 Datasheet PDF Download

TPS5430-Q1 pdf