FAN53501AUCX

Voltage Regulators - DC DC Switching Regulators Overview

The FAN53501AUCX is a fixed-output synchronous buck regulator manufactured by Fairchild Semiconductor. It operates with an input voltage range of 2.3 V to 5.5 V and provides a fixed 1.0 V output. The device supports a maximum output current of 600 mA and utilizes a 6 MHz switching frequency. It is housed in a compact 6-bump WLCSP package measuring 0.86 mm x 1.16 mm x 0.378 mm. 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 high efficiency
• Fixed-frequency operation at 6 MHz
• Integrated thermal shutdown and overload protection

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics
• Mobile communication devices
• Battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AUC10' against the requested model, as datasheets typically list FAN53601AUC10X or similar variants for the 1.0V output. Confirm package dimensions and pinout compatibility with the target PCB footprint. Ensure the supplier source aligns with ON Semiconductor, the current rights holder for the Fairchild portfolio.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.0 V rail is required from a single-cell lithium battery or USB supply. The 6 MHz frequency allows for smaller external passive components compared to lower-frequency regulators. Verify that the 600 mA load requirement does not exceed the thermal limits of the WLCSP package in the final enclosure design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the FAN53601/11 family of low-power synchronous buck converters. These devices are designed for space-constrained applications requiring high efficiency across light and heavy loads. The family shares common architectural features but differs in output current capabilities and fixed output voltage options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct equivalents such as the FAN53601AUC10X which shares identical electrical specifications and pinout. Cross-reference with other 600mA, 1.0V fixed-output buck regulators in WLCSP packages if sourcing constraints exist.