text.skipToContent text.skipToNavigation


3V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter

Availability: 5,339


Package | PIN: VQFN (RHF) | 24
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.99
10-24 $3.59
25-99 $3.35
100-249 $3.01
250-499 $2.81
500-749 $2.44
750-999 $2.11
1000+ $2.07


  • 60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Current
  • Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
  • Switching Frequency: Adjustable From 280 kHz to 1600 kHz
  • Externally Compensated for Design Flexibility
  • Fast Transient Response
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
  • Spacing Saving 4mm x 5mm QFN Packaging
  • For SWIFT Documentation, Application Notes, and Design Software, see the TI website at www.ti.com/swift
    • Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure

Texas Instruments  TPS54317RHFT

As members of the SWIFT family of dc/dc regulators, the TPS54317 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 provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and 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.

The TPS54317 device is available in a thermally enhanced 24-pin QFN (RHF) PowerPAD package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.