TPS5430MDDAREP Power Path Management IC Switching Voltage Regulators EP 5.5-36V,3A,500kHz St Down SWIFT Cnvtr

TPS5430MDDAREP Power Path Management IC Switching Voltage Regulators EP 5.5-36V,3A,500kHz St Down SWIFT Cnvtr

FEATURES

• 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

• –55°C to 125°C Operating Junction Temperature Range

• Available in Small Thermally Enhanced 8-Pin SOIC PowerPADTM Package

• For SWIFTTM Documentation, Application Notes, and Design Software, See the TI Website at www.ti.com/swift

  
  

SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS

• Controlled Baseline

• One Assembly/Test Site

• One Fabrication Site

• Available in Military (–55°C/125°C)

  Temperature Range(1)

• Extended Product Life Cycle

• Extended Product-Change Notification

• Product Traceability

  APPLICATIONS

• Industrial and Car Audio Power Supplies

• Battery Chargers, High-Power LED Supplies

• 12-V/24-V Distributed Power Systems

DESCRIPTION

As a member of the SWIFTTM family of dc/dc regulators, the TPS5430 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 PowerPADTM 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.