FAN53528GUC48X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53528GUC48X is a digitally programmable synchronous buck switching regulator manufactured by Fairchild Semiconductor. It delivers a maximum output current of 3A with an input voltage range of 2.5V to 5.5V. The device features a fixed switching frequency of 2.4 MHz and provides a digitally adjustable output voltage from 0.35V to 1.14V. It is housed in a compact 15-UFBGA, WLCSP package (1.3x2 mm).

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Digitally programmable output voltage control via digital interface.
• Integrated synchronous rectification for high efficiency.
• Fixed 2.4 MHz switching frequency enables small external component size.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring low power consumption.
• Embedded systems with multiple voltage rails.
• Battery-powered devices needing efficient step-down regulation.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'GUC48X' against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the source document explicitly lists this part number as active. Cross-reference RoHS compliance status directly from the latest official documentation rather than relying on distributor summaries.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact footprint is critical due to the WLCSP packaging. It is suitable for applications requiring precise digital voltage adjustment rather than analog potentiometer tuning. Consider the 2.4 MHz frequency for balancing EMI performance and passive component size requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN53528 family of digitally controlled DC-DC converters. It is designed for space-constrained mobile applications. The series typically includes variants with different output currents or packaging options, but this specific model is optimized for 3A output in a minimal area solution.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for equivalent 3A digitally programmable buck regulators. Verify that any alternative maintains the 2.4 MHz frequency and compatible digital control interface to ensure system stability without redesign.