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3V to 4V Input, 14A Synchronous Step-Down Converter for Pre-biased Outputs 


Package | PIN: HTSSOP (PWP) | 28
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $13.02
10-24 $12.11
25-99 $11.69
100-249 $10.21
250-499 $9.72
500-749 $8.94
750-999 $8.03
1000+ $8.00


  • 8-m MOSFET Switches for HighEfficiency at 14.5-A Peak Output Current
  • Separate Low-Voltage Power Bus
  • Disabled Current Sinking During Start-Up
  • Adjustable Output Voltage Down to 0.9 V
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz
  • Synchronizable to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
    • Low-Voltage, High-Density Distributed Power Systems
    • Point of Load Regulation for High-
      Performance DSPs, FPGAs, ASICs, and
    • Broadband, Networking, and Optical

Texas Instruments  TPS54073PWP

As a member of the SWIFT™ family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

For reliable power up in output precharge applications, the TPS54073 is designed to only source current during start-up.

The TPS54073 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. 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