FAN49103AUC330X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN49103AUC330X is a synchronous buck-boost switching regulator IC from the TinyPower series by onsemi. It operates with an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 3.3V, capable of delivering up to 2.5A output current. The device features a 1.8MHz switching frequency and supports programmable or fixed output configurations. It is housed in a 20-UFBGA (WLCSP) package and functions within a temperature range of -40°C to 85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification for improved efficiency
• Buck-boost topology supporting wide input voltage ranges
• Compact WLCSP packaging for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable electronics
• IoT sensor nodes
• Wearable devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix '330X' confirms the fixed 3.3V output variant. Ensure compatibility with the 20-UFBGA footprint during PCB layout. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the datasheet revision date to ensure all electrical characteristics match your design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-stage solution is needed for batteries that may discharge below or charge above the target rail voltage. The 2.5A current rating suits moderate load applications. Consider the 1.8MHz frequency for balancing component size against EMI performance. The WLCSP package is ideal for high-density boards where height and area are critical constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TinyPower series, designed for compact power management needs. It integrates synchronous switches to minimize external component count. The fixed 3.3V output variant simplifies design for standard logic levels. It replaces older asynchronous solutions requiring Schottky diodes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for pin-compatible alternatives within the same TinyPower family. Verify if other output voltage variants share the same package and thermal characteristics. Ensure substitute parts support the same 2.5A continuous current capability.