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TPS5430-Q1
  • TPS5430-Q1
  • TPS5430-Q1

TPS5430-Q1

ACTIVE

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

Texas Instruments TPS5430-Q1 Product Info

1 April 2026 0

Parameters

Rating

Automotive

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

36

Vin (min) (V)

5.5

Vout (max) (V)

31

Vout (min) (V)

1.22

Features

Enable, Fixed soft start, Overcurrent protection

Control mode

Voltage mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.003

Duty cycle (max) (%)

89

Package

HSOIC (DDA)-8-29.4 mm² 4.9 x 6

Features

  • Qualified for automotive applications
  • Wide input voltage range: 5.5V to 36V
  • Up to 3A continuous (4A peak) output current
  • High efficiency up to 95% enabled by 100mΩ integrated MOSFET switch
  • Wide output voltage range: adjustable down to 1.22V with 1.5% initial accuracy
  • Internal compensation minimizes external parts count
  • Fixed 500kHz 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™ integrated circuit package
  • Create a custom regulator design using the TPS5430-Q1 with WEBENCH Power Designer
  • Qualified for automotive applications
  • Wide input voltage range: 5.5V to 36V
  • Up to 3A continuous (4A peak) output current
  • High efficiency up to 95% enabled by 100mΩ integrated MOSFET switch
  • Wide output voltage range: adjustable down to 1.22V with 1.5% initial accuracy
  • Internal compensation minimizes external parts count
  • Fixed 500kHz 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™ integrated circuit package
  • Create a custom regulator design using the TPS5430-Q1 with WEBENCH Power Designer

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 5.5V, 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 15µA 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 24V buses.

The TPS5430-Q1 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD integrated circuit 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.

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 5.5V, 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 15µA 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 24V buses.

The TPS5430-Q1 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD integrated circuit 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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