TPS56221 High-Current SWIFT™

Texas Instruments' 4.5 V to 14 V input, 25 A high current synchronous step-down converter with integrated FETs

image of Texas Instruments' TPS56221 High-Current SWIFT™Texas Instruments' TPS56221 is a high-efficiency and high-current synchronous buck converter designed to operate from a supply between 4.5 V and 14 V. The device is capable of producing an output voltage as low as 0.6 V at loads up to 25 A. Integrated NexFET™ Power MOSFETs provide a small footprint and ease of use. The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change. The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground.

Features Applications
  • 45 V to 14 V input voltage range
  • Incorporates power block technology
  • Up to 25 A output current
  • Fixed frequency options of 300 kHz, 500 kHz and 1 MHz
  • High-side and low-side MOSFET RDS(on) sensing
  • Programmable soft-start
  • 600 mV reference voltage with 1% accuracy
  • Voltage mode control with feed-forward
  • Supports pre-biased output
  • Thermal shutdown
  • 22-pin 5 mm x 6 mm PQFN PowerPAD package

TPS56221 High Current SWIFT

ImageManufacturer Part NumberDescriptionFunctionOutput ConfigurationAvailable Quantity
TPS56221DQPT datasheet linkIC REG BUCK ADJ 25A SYNC 22SONTPS56221DQPTIC REG BUCK ADJ 25A SYNC 22SONStep-DownPositive1514 - Immediate
TPS56221DQPT product page link
TPS56121DQPT datasheet linkIC REG BUCK ADJ 15A SYNC 22SONTPS56121DQPTIC REG BUCK ADJ 15A SYNC 22SONStep-DownPositive198 - Immediate
TPS56121DQPT product page link

Evaluation Modules

ImageManufacturer Part NumberDescriptionMain PurposeOutputs and TypeAvailable Quantity
TPS56121EVM-601 datasheet linkEVAL MODULE FOR TPS56121-601TPS56121EVM-601EVAL MODULE FOR TPS56121-601DC/DC, Step Down1, Non-Isolated2 - Immediate
TPS56121EVM-601 product page link
TPS56221EVM-579 datasheet linkEVAL MODULE FOR TPS56221-579TPS56221EVM-579EVAL MODULE FOR TPS56221-579DC/DC, Step Down1, Non-Isolated0TPS56221EVM-579 product page link
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Published: 2011-05-19