FAN48630UC33X

Overview

The FAN48630UC33X is a synchronous boost regulator from the TinyBoost series by onsemi, formerly Fairchild Semiconductor. It operates with an input voltage range of 2.35 V to 5.5 V and provides a fixed output of 3.3 V (nominal) or 3.49 V. The device delivers a continuous output current of 1.5 A at a switching frequency of 2.5 MHz. It features a low quiescent current of 55 uA and includes a shutdown function. Packaged in a 16-WLCSP (1.78x1.78 mm), it supports temperatures from -40°C to +85°C.

Feature Summary

• Synchronous rectification for high efficiency
• Integrated bypass mode for low noise applications
• Compact WLCSP package design

Applications

• GSM power amplifier supply
• Portable communication devices
• Battery-powered systems

Procurement Notes

Verify component authenticity through authorized channels as this part is listed as obsolete. Confirm RoHS compliance status via official documentation before integration. Check for valid PCN records regarding end-of-life transitions. Ensure storage conditions meet moisture sensitivity level requirements for WLCSP packages.

Selection Notes

Select this model when a compact synchronous boost solution is required for single-cell lithium-ion battery applications. The 2.5 MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Verify that the 1.5 A output current meets peak load demands without exceeding thermal limits in the specific enclosure design.

Part Context

This component belongs to the FAN48630 family of TinyBoost regulators. It shares architectural similarities with models like FAN48630BUC33X and FAN48630UC50X, differing primarily in output voltage configuration and specific feature sets such as bypass mode availability within the same WLCSP-16 footprint.

Replacement Considerations

FAN48630BUC33X offers similar electrical characteristics with added bypass mode functionality.