4.5V – 24V Input, 6A Synchronous Buck Regulator with I2C Interface

Description

The KTB8375 is a 6A synchronous buck regulator with integrated high-side and low-side power MOSFETs. The device operates over a wide input voltage range from 4.5V to 24V to support a variety of applications.

KTB8375 employs Kinetic proprietary advanced adaptive on-time (AOT) control for fast transient response and high output voltage accuracy. This control technique eliminates external loop compensation network and allows the use of ceramic output capacitors without ripple-generating circuitry. This feature enables a very small total solution size and makes the KTB8375 easy to use.

The KTB8375 device features an internal soft-start function to limit inrush current during start-up. The output voltage can be adjusted with a feedback resistor divider connected to the FB pin. The device has comprehensive built-in protection features including input voltage UVLO, high-side cycle-by-cycle peak current limit, reverse current protection, short-circuit protection, output over-voltage protection, and thermal shutdown.

The KTB8375 is available in a thermal-enhanced flip chip QFN (2.5mm x 3.0mm) Package.

Features

  • Wide VIN Range: 4.5V to 24V
  • Continuous Output Current: 6A
  • I2C Control Interface
  • Adjustable Output Voltage from 0.55V to 6V
  • Integrated High-side / Low-side FETs
  • Advanced Adaptive On-Time Control
  • Fast Transient Response
  • ±1% Feedback Voltage Reference 0.5V (at 25°C)
  • Low Shutdown Supply Current
  • Low Quiescent Current
  • High Efficiency in Light Load and Heavy Load
  • Adjustable Switching Frequency up to 2MHz
  • Programmable Mode Forced-PWM or Auto-Skip
  • Built-in Cycle-by-Cycle Current Limit, Short Circuit Protection, Input UVLO
  • Output Under-Voltage Protection, Output Over-Voltage Protection, and Thermal Shutdown Protection
  • Flip Chip 12-pin QFN (2.5mm x 3.0mm) Package

Applications

  • Telecom & Networking, Point-of-Load (POL)
  • CPU, GPU, DSP, FPGA
  • PCs, Notebooks, Mobile Internet Devices, Docking Stations
  • Servers, Cloud-Computing, Storage
  • Drones, Gaming Consoles

Packaging Information

Package Dimensions Pins Package Code
FCQFN 2.5mm x 3.0mm 12 QFN-12FC

Technical Documentation

Description Documents Type
Package Outline DrawingFCQFN2.5x3-12 UFB PODPDF
DatasheetKTB8375-04aPDF

Purchase

Purchase Options
Buy from Digi-Key
Buy from Mouser