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4.5V to 17V Input, 6A Synchronous Step-Down SWIFT™ Converter

Availability: 21,416


Package | PIN: VQFN (RGY) | 14
Temp: S (-40 to 150)
Carrier: Cut Tape
Qty Price
1-9 $3.84
10-24 $3.45
25-99 $3.22
100-249 $2.89
250-499 $2.70
500-749 $2.35
750-999 $2.03
1000+ $1.99


  • Integrated 26 mΩ and 19 mΩ MOSFETs
  • Split Power Rail: 1.6 V to 17 V on PVIN
  • 200-kHz to 1.6-MHz Switching Frequency
  • Synchronizes to External Clock
  • 0.8 V ±1% Voltage Reference Overtemperature
  • Low 2-µA Shutdown Quiescent Current
  • Monotonic Start-Up into Prebiased Outputs
  • –40°C to 150°C Operating Junction Temperature Range
  • Adjustable Slow Start and Power Sequencing
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Adjustable Input Undervoltage Lockout
  • For SWIFT™ Documentation, Visit http://www.ti.com/swift
  • Create a Custom Design Using the TPS54620 With the WEBENCH Power Designer

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Texas Instruments  TPS54620RGYR

The TPS54620 in thermally enhanced 3.50 mm × 3.50 mm QFN package is a full featured 17-V,6-A, synchronous, step-down converter which is optimized for small designs through high efficiencyand integrating the high-side and low-side MOSFETs. Further space savings are achieved throughcurrent mode control, which reduces component count, and by selecting a high switching frequency,reducing the footprint of the inductor.

The output voltage start-up ramp is controlled by the SS/TR pin which allows operation aseither a stand-alone power supply or in tracking situations. Power sequencing is also possible bycorrectly configuring the enable and the open-drain power good pins.

Cycle-by-cycle current limiting on the high-side FET protects the device in overloadsituations and is enhanced by a low-side sourcing current limit which prevents current runaway.There is also a low-side sinking current limit that turns off the low-side MOSFET to preventexcessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermalshutdown temperature.