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Texas Instruments

As a member of the SWIFT™ 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 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.

• Wide Input Voltage Range: 5.5 V to 36 V
• Up to 3-A Continuous (4-A Peak) Output
• 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
• –55°C to 125°C Operating Junction
   Temperature Range
• Available in Small Thermally Enhanced 8-Pin
   SOIC PowerPAD™ Package
• For SWIFT™ Documentation, Application
   Notes, and Design Software, See the TI
   Website at

• 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

• Industrial and Car Audio Power Supplies
• Battery Chargers, High-Power LED Supplies
• 12-V/24-V Distributed Power Systems

other parts : TPS5430MDDAREP  TPS5430MDDAREPG4  V62/09625-01XE  


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