FAN65004B

Voltage Regulators - DC DC Switching Regulators Overview

The FAN65004B is a synchronous PWM buck regulator IC from onsemi, designed for high-performance voltage mode control. It integrates high-side and low-side power MOSFETs into a compact 6x6 mm PQFN package. The device supports a wide input voltage range of 4.5 V to 65 V and delivers continuous output currents up to 6 A. It features a fixed frequency operation with programmable switching frequencies ranging from 100 kHz to 1 MHz. The regulator includes an accurate reference voltage and offers protection features such as over-current, thermal shutdown, and short-circuit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates controller, driver, and power MOSFETs for high power density
• Supports pulse skipping operation for improved light load efficiency
• Includes integrated current sense circuit for cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Wide VIN highly efficient synchronous buck regulator designs
• Systems requiring tight regulation with accurate reference voltage
• Applications utilizing ON Semiconductor POWERTRENCH MOSFETs to reduce ringing

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics. Ensure compatibility with the intended switching frequency range and thermal requirements. Confirm package type matches the design layout. Check for any recent product change notices affecting specifications or availability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a wide input voltage range up to 65 V and high continuous current capability. Consider the integrated MOSFET approach for simplified design and reduced board space. Evaluate the programmable switching frequency options to optimize efficiency and filter size. Ensure thermal management strategies align with the compact PQFN package constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

The FAN65004B belongs to the FAN6500XX series of synchronous buck regulators from onsemi. This series is part of the Strata Development Environment, providing developers with access to evaluation boards, datasheets, and testing interfaces. The family focuses on delivering high-efficiency solutions for modern power architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The FAN65004C is a related variant within the same series. Verify if the C variant meets the specific electrical requirements and pin compatibility before substitution.