TPS544B20 DC/DC Integrated FET Converters


TI's 4.5-18 V, 20 A SWIFT™ with PMBus™ programmability and voltage, current and temperature monitoring

Texas Instruments' TPS544B20 device is a PMBus-compatible, non-isolated DC-DC integrated FET converter, capable of high-frequency operation and delivering 20 A , or 30 A current output from a 5 × 7 mm package, enabling high-power density and fast transient performance with minimal PCB area. The PMBus interface provides for converter configuration as well as monitoring of key parameters including output voltage, current and an optional external temperature. High-frequency, low-loss switching, provided by an integrated NexFET power stage and optimized drivers, allows for very high-density power solutions and reduced inductor and filter capacitor sizes. Response to fault conditions can be set to either restart or latch off depending on system requirements.

Features
  • PMBus-enabled converters: 20 A, 30 A
  • 4.5 to 18 V input, 0.6 to 5.5 V output
  • 5 × 7 mm LQFN package with 0.5 mm pitch
  • Single thermal pad
  • Integrated 4.5 mΩ and 2.0 mΩ stacked NexFET power stage
  • 600 mV, 0.5% reference
  • Lossless, low-side MOSFET current sensing
 
  • Selectable D-CAP and D-CAP2 mode control
  • Differential remote sensing
  • Monotonic start-up into pre-biased output
  • Output voltage margin and trim
  • Output voltage and current reporting
  • External temperature monitoring with 2N3904

TPS544B20 DC/DC Integrated FET Converter

Manufacturer Part Number Description Available Quantity Datasheets
TPS544B20RVFT IC REG BUCK SYNC ADJ 20A 40LQFN 255

Evaluation Board

Manufacturer Part Number Description Available Quantity Datasheets
TPS544B20EVM-634 EVAL BOARD BUCK REG TPS544B20 3