FAN53541UCX

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53541UCX is a synchronous step-down switching regulator from the TinyBuck series, manufactured by onsemi. It operates with an input voltage range of 2.7V to 5.5V and provides a single adjustable output between 0.8V and 4.95V. The device delivers up to 5A of output current at a fixed switching frequency of 2.4MHz. Packaged in a compact 20-WLCSP (1.96x1.56mm) format, it supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency in a small footprint
• Features a fixed 2.4MHz switching frequency to minimize external component size
• Supports adjustable output voltage via external resistor divider
• Designed for point-of-load regulation in space-constrained applications

Voltage Regulators - DC DC Switching Regulators Applications

• Cloud systems computing power distribution
• Point-of-Load (POL) regulators
• Portable electronic devices requiring efficient DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify part authenticity through authorized channels as this component is officially listed as obsolete. Check Product Change Notices (PCN) for end-of-life details dated June 30, 2022. Ensure design-in decisions account for availability constraints and potential supply chain discontinuation risks associated with legacy inventory.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 5A synchronous buck converter is required in a WLCSP package. It is suitable for designs needing a 2.4MHz frequency to reduce passive component volume. Compare against other TinyBuck variants if different current ratings or packaging options are preferred for the specific application constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the TinyBuck family of power management ICs from onsemi. It shares architectural similarities with models like the FAN53540UCX but may differ in specific electrical characteristics or pin configurations. The series targets portable and computing applications where board space is limited and high efficiency is critical for thermal management.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements should be evaluated based on functional equivalence, ensuring input/output voltage ranges, current capacity, and package dimensions match the original design requirements.