High-Efficiency 6A Step-down Voltage Regulator with I2C Interface

28/03/2025

4.5V – 24V Input Buck Regulator Combines Ultra-Fast Transient Response with High Efficiency

The KTB8375 is a high-performance 6A synchronous buck regulator designed for industrial, telecom, networking, computing, and battery-powered applications. KTB8375 integrates high-side and low-side MOSFETs, delivering high efficiency and fast transient response in a compact footprint.

With an input voltage range of 4.5V to 24V, an output range from 0.55V to 6V, the KTB8375 employs Kinetic’s proprietary Advanced Adaptive On-Time (AOT) control to achieve high output voltage accuracy while eliminating the need for external loop compensation, shrinking PCB area and limiting component count.

Optimized for power efficiency, fast transient response and small size, the KTB8375 takes advantage of low on-resistance integrated Power MOSFETs and a proprietary control scheme. Peak efficiency.

Main 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

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Power management ICs

Kinetic Technologies

Kinetic Technologies designs, develops and markets proprietary high-performance analog and mixed-signal power and protection semiconductors across consumer, communications, industrial, automotive and enterprise markets, to deliver protected solutions tolerant of real-world fault conditions.

Documents

Kinetic KTB8375 04a Datasheet

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