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Kinetic Technologies KTB8372 5A Synchronous Buck Regulator

Kinetic Technologies KTB8372 5A Synchronous Buck Regulator is a 5A, 18V regulator with built-in high-side and low-side power FETs. The Kinetic Technologies KTB8372 operates across a broad input voltage range, supporting various applications with input voltage from regulated 5V and 12V power rails to multicell batteries. Output voltage options are factory-predefined and trimmable. Kinetic's proprietary Adaptive on-Time (AOT) control ensures fast transient response and high output voltage accuracy, eliminating the need for an external loop compensation network. The design allows ceramic output capacitors without additional ripple-generating circuitry, resulting in a compact solution and easy usability.

Features

  • 4.7V to 18V wide VIN range
  • 5A maximum continuous output current
  • VOUT = 1.8V
  • Different fixed options are available for predefined output voltage by the factory
  • Integrated high/low-side FETs (65mΩ/35mΩ)
  • Advanced adaptive on-time control
  • Fast transient response
  • Open drain power good indicator
  • ±0.5% feedback voltage reference
  • Zero shutdown supply current
  • 50μA non-switching operating quiescent current
  • 80μA no load operating quiescent current
  • High efficiency in light and heavy loads
  • Factory 300kHz, 500kHz, 800kHz, and 1MHz switching frequency options available by request
  • Internal soft-start
  • Factory-forced CCM (FCCM) or automatic CCM/PFM (auto-skip) options
  • Active discharge mode option
  • Ultrasonic mode option to eliminate audio noise
  • Built-in cycle-by-cycle current limit, short circuit protection, input UVLO, output under-voltage protection, output over-voltage protection, and thermal shutdown protection
  • 11-pin UQFN (2.2mm x 2.5mm) package

Applications

  • CPU, GPU, AP, DSP, FPGA, VIO, and VSYS
  • Tablets, netbooks, ultra-books, mobile internet devices, IoT, and servers
  • HDD, LPDDR3, and LPDDR4 memory power
  • DSC, drones, gaming consoles, and TV set boxes

Typical Application Schematic

Application Circuit Diagram - Kinetic Technologies KTB8372 5A Synchronous Buck Regulator

Additional Resources

Published: 2024-01-30 | Updated: 2024-11-24