FAN48619UC50X

Overview

The FAN48619UC50X is a fixed-output synchronous TinyBoost regulator manufactured by onsemi. It operates within an input voltage range of 2.7 V to 4.5 V and provides a fixed 5 V output with a maximum output current of 1 A. The device features a switching frequency of 2.3 MHz and a typical static current of 48 uA. It is housed in a BGA-9 package and supports surface mount installation. The operational temperature range extends from -40°C to +85°C.

Feature Summary

• Synchronous rectification for improved efficiency
• Fixed 5 V output configuration
• Compact BGA-9 footprint

Applications

• Portable electronic devices requiring compact power solutions
• Battery-powered systems needing efficient step-up regulation
• Embedded applications with limited board space

Procurement Notes

Verify the manufacturer designation, as onsemi acquired Fairchild Semiconductor. Confirm the specific suffix UC50X corresponds to the fixed 5 V output variant. Check datasheets for RoHS compliance details and ensure the BGA-9 package matches your PCB layout requirements before ordering.

Selection Notes

Select this component when a fixed 5 V output is required from a single-cell lithium-ion or similar battery source. The 1 A current capability suits low-power portable applications. Consider the 2.3 MHz frequency for balancing component size and efficiency against noise sensitivity in the target circuit design.

Part Context

This part belongs to the TinyBoost series of synchronous boost regulators. It is designed for space-constrained mobile and portable electronics. The device integrates the power switch and control logic into a minimal footprint, reducing the external component count compared to asynchronous alternatives.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.