FAN48618BUC53X

Overview

The FAN48618BUC53X is a synchronous boost regulator from onsemi, packaged in a WLCSP-9 format. It operates within an input voltage range of 2.7 V to 4.8 V and delivers a fixed output voltage of 5.25 V at up to 1.2 A. The device features a switching frequency of 2.5 MHz and draws a static current of 48 uA. It functions reliably between -40 C and +85 C.

Feature Summary

• Synchronous boost topology for efficient power conversion
• Compact WLCSP-9 package design
• Fixed output voltage regulation

Applications

• Portable electronic devices
• Battery-powered systems
• Embedded power management circuits

Procurement Notes

Verify the specific suffix '53X' against official documentation to confirm the exact output voltage and package variant. Ensure compatibility with the required input voltage range of 2.7 V to 4.8 V. Confirm RoHS compliance status through the manufacturer's datasheet before integration into final assemblies.

Selection Notes

Select this component when a compact synchronous boost solution is needed for single-cell lithium battery applications. The 2.5 MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the 1.2 A output current meets the load requirements without exceeding thermal limits in the WLCSP-9 package.

Part Context

This part belongs to the FAN48618 series of TinyBoost regulators designed by onsemi. These devices are engineered for space-constrained portable electronics requiring high efficiency and minimal footprint. The series typically integrates protection features suitable for modern mobile and IoT applications.

Replacement Considerations

Consult official substitution guides for compatible parts within the same family or alternative manufacturers offering similar WLCSP-9 boost regulators with matching electrical specifications.