FAN48610BUC50X

Overview

The FAN48610BUC50X is a fixed-output synchronous TinyBoost regulator manufactured by onsemi. It operates with an input voltage range of 2.5 V to 4.8 V and provides a fixed 5 V output at up to 1 A switch current. The device features a 2.5 MHz switching frequency, low quiescent current of 45 uA, and operates within a temperature range of -40°C to +85°C. Packaged in a 9-WLCSP (1.22x1.22 mm) format, it is designed for space-constrained portable applications.

Feature Summary

• Synchronous rectification for improved efficiency
• Fixed 5V output configuration
• Compact 9-WLCSP package

Applications

• Single-cell Li-Ion battery powered devices
• Portable consumer electronics
• Space-constrained power management systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notifications (PCN) regarding manufacturing location or material updates. Ensure the specific suffix matches required packaging options such as cut tape or reel.

Selection Notes

Select this component when a fixed 5V rail is required from a single-cell lithium-ion source. The 2.5MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the 1A switch current rating meets peak load requirements and that the WLCSP footprint fits the PCB layout constraints.

Part Context

This part belongs to the TinyBoost family of regulators, which are optimized for low-power, high-efficiency boost conversion in small form factors. The series typically targets mobile and wearable applications where board space and battery life are critical design parameters.

Replacement Considerations

Check for pin-compatible alternatives within the same TinyBoost family if availability is limited. Verify that substitute parts maintain the same 5V fixed output and 1A current capability.