FAN53555UC09X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53555UC09X is a digitally programmable synchronous buck switching regulator manufactured by onsemi. It operates with an input voltage range of 2.5 V to 5.5 V and delivers up to 5 A of output current. The device features a fixed 2.4 MHz switching frequency and provides an adjustable output voltage range from 600 mV to 1.411 V. Packaged in a WLCSP-20 format, it supports operation within a temperature range of -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Digitally programmable output voltage control for precise power rail adjustment
• Synchronous rectification architecture ensures high efficiency at low load currents
• Fixed 2.4 MHz switching frequency enables the use of compact external components

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient power management
• Embedded systems utilizing single-rail power distribution
• Battery-powered devices needing extended operational runtime

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified suppliers. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any updates regarding electrical characteristics or thermal performance specifications before final integration into production designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a high-current, digitally adjustable power solution is required in a minimal footprint. Ensure the application demands an output voltage within the 600 mV to 1.411 V range. Verify that the system can accommodate the specific WLCSP-20 package dimensions and thermal requirements associated with 5 A continuous output.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the TinyBuck family of power management integrated circuits. It is designed to replace traditional linear regulators or less efficient switching solutions in space-constrained mobile applications. The series emphasizes miniaturization while maintaining robust performance under varying load conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official onsemi documentation for verified cross-reference part numbers. Do not substitute with generic equivalents without validating pin compatibility and electrical parameters against the original datasheet.