FAN53611AUC12X

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53611AUC12X is a synchronous buck regulator from onsemi, designed for high-frequency DC-DC conversion. It operates with an input voltage range of 2.3V to 5.5V and provides a fixed output voltage of 1.2V. The device supports a maximum output current of 1A and features a switch frequency of 6MHz. Packaged in a compact 6-WLCSP (1.23x0.88mm) format, it is suitable for space-constrained applications. The component functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification architecture for improved efficiency
• Fixed 6MHz switching frequency enables small external component size
• Compact WLCSP package design for minimal board footprint

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics requiring efficient power management
• Embedded systems with strict space limitations
• Battery-powered devices needing stable low-voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AUC12X' against the official datasheet to confirm the fixed 1.2V output voltage and 6WLCSP package configuration. Ensure that the procurement channel sources components directly from authorized distributors or the manufacturer to guarantee authenticity. Check for any recent Product Change Notifications (PCNs) regarding packaging or material composition updates before placing orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2V output is required alongside a 1A current capability. The 6MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the thermal performance of the 6-WLCSP package in the final layout, as heat dissipation relies heavily on PCB copper area. Verify that the application input voltage remains within the 2.3V to 5.5V operational window.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN53611 series of TinyBuck synchronous regulators. It shares architectural similarities with other models in the family but differs in output voltage and package options. The series is known for integrating high-side and low-side MOSFETs into a single compact solution, targeting mobile and portable applications where space and efficiency are critical constraints.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other FAN53611 variants with matching 1.2V output and 6WLCSP packages, such as FAN53611UC123X. Cross-referencing pinouts and electrical specifications with the official datasheet is essential to ensure compatibility.