FAN53528BUC08X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53528BUC08X is a digitally programmable synchronous step-down (buck) switching regulator manufactured by onsemi. It operates within an input voltage range of 2.5 V to 5.5 V and delivers up to 3 A of output current. The device features a fixed switching frequency of 2.4 MHz and supports an adjustable output voltage range from 350 mV to 1.3938 V. Packaged in a compact 15-ball WLCSP, it includes integrated shutdown functionality and operates reliably across a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Digitally programmable output voltage via I2C interface for precise power rail adjustment
• Synchronous buck topology with integrated high-side and low-side MOSFETs for high efficiency
• Compact 15-ball WLCSP package designed for space-constrained mobile applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient core voltage regulation
• Mobile devices needing programmable power rails for system-on-chip (SoC) supplies
• Battery-powered equipment utilizing synchronous step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm the specific suffix 'UC08X' matches your board design requirements. Check for end-of-life status or obsolescence notices before finalizing procurement plans. Ensure compliance with RoHS directives and relevant environmental standards for your target market.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact footprint and digital voltage control are required. It suits designs needing a 3 A capacity with a 2.4 MHz switching frequency. Consider the WLCSP-15 package constraints during PCB layout. Verify that the input voltage range aligns with your battery or supply source specifications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TinyBuck family of digitally programmable regulators from onsemi. These components are engineered for portable electronics where size and efficiency are critical. The series typically integrates control logic and power stages into minimal packages, supporting modern low-voltage, high-current processor architectures.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official onsemi documentation for verified cross-reference part numbers. Do not assume functional equivalence with other Buck regulators without verifying pinout, electrical parameters, and thermal characteristics.