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1.5V to 18V Input, 25A SWIFT™ Synchronous Step-Down Converter with Diff. Remote Sense and PMBus™


Package | PIN: RVF | 40
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $8.16
10-24 $7.34
25-99 $6.85
100-249 $6.15
250-499 $5.74
500-749 $4.99
750-999 $4.32
1000+ $4.23


  • Input Voltage (PVIN): 1.5 V to 18 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 4.1-mΩ and 1.9-mΩ Power MOSFETs With 25-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop
  • Adaptive On-Time Control with 8 PMBusTM Frequencies: 315 kHz, 425 kHz, 550 kHz, 650 kHz, 825 kHz, 900 kHz, 1.025 MHz, 1.125 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • Pin-Strapping and On-the-Fly Programming
  • Fault Reporting and Warning
  • NVM Backup for Selected Commands
  • 1-MHz PMBus with PEC and SMB_ALRT#
  • Create a Custom Design Using the TPS549B22 With the WEBENCH® Power Designer

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Texas Instruments  TPS549B22RVFT

The TPS549B22 device is a compact single buck converter with adaptive on-time, D-CAP3mode control. It is designed for high accuracy, high efficiency, fast transient response,ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense and TI integrated FETs with a high-sideon-resistance of 4.1 mΩ and a low-side on-resistance of 1.9 mΩ. The device alsofeatures an accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and+125°C. Competitive features include: very low external component count, accurate load regulationand line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS549B22 device is available in 7 mm × 5 mm, 40-pin, LQFN-CLIP (RVF) package (RoHsexempt).