FAN4860UC33X

Overview

The FAN4860UC33X is a synchronous boost regulator from the TinyBoost series, manufactured by Fairchild Semiconductor. It operates with a switching frequency of 3 MHz and delivers a maximum output current of 200 mA. The device supports an input voltage range from 2.3 V to 4.5 V and provides a fixed output voltage of 5.4 V. Packaged in a compact 6-pin WLCSP format, it features a low static current of 55 uA and functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Synchronous rectification for high efficiency
• Compact WLCSP package design
• Low quiescent current operation

Applications

• USB OTG power supply
• HDMI communication line power
• Portable digital devices

Procurement Notes

Verify component authenticity through authorized channels due to potential obsolescence. Confirm RoHS compliance status via official documentation. Check for specific manufacturing date codes if required for legacy system maintenance. Ensure proper handling procedures are followed during installation.

Selection Notes

Select this component when space constraints require a small footprint solution. Suitable for applications needing step-up conversion from single-cell lithium batteries. Consider thermal performance requirements given the small package size. Verify input voltage compatibility with the source power supply.

Part Context

Part of the TinyBoost family designed for portable electronics. Manufactured originally by Fairchild Semiconductor, now part of onsemi. Designed to replace larger inductor-based solutions in mobile devices. Represents an evolution in power management integration for consumer electronics.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify electrical specifications match original design requirements. Consider updated versions with improved efficiency or different packaging options.