FAN1616AS5X

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The FAN1616AS5X is an adjustable positive low-dropout (LDO) linear regulator manufactured by Fairchild Semiconductor. It operates within a differential input-to-output voltage range of 1.5 V to 5.75 V and provides a maximum output current of 0.5 A. The device features a maximum dropout voltage of 1.2 V at full load, ensuring efficient performance under varying conditions. Packaged in a four-pin SOT-223 plastic surface-mount case, it is designed for applications requiring stable voltage regulation with minimal heat dissipation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Adjustable output voltage capability allows customization for specific circuit requirements
• Low dropout voltage design ensures high efficiency during power conversion
• Integrated thermal protection safeguards the device against overheating
• Compact SOT-223 package facilitates space-constrained board layouts

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• USB control power supplies
• Motherboard voltage regulation
• SDRAM module power delivery
• General-purpose linear regulation from 12V sources

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the exact suffix designation when ordering, as variations such as 'X' or 'NL' may indicate different packaging or lead-free status. Confirm that the adjustable version matches the required output voltage range. Ensure compatibility with the target PCB footprint for the SOT-223 package. Check for RoHS compliance if environmental regulations apply to the final assembly.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when an adjustable LDO is preferred over fixed-voltage alternatives for flexibility. Consider the 0.5A current limit and 1.2V dropout characteristics for efficiency calculations. Evaluate the thermal resistance of the SOT-223 package against expected power dissipation. Ensure the input voltage remains within the specified 1.5V to 5.75V differential range for proper operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the FAN1616 series of low-dropout regulators designed for portable and USB-powered electronics. The series includes both fixed and adjustable variants, with the AS5X specifically offering adjustable output. It shares architectural similarities with other Fairchild LDOs but is distinct in its pinout and adjustment mechanism compared to fixed versions like the FAN1616AS-3.3.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical specifications before considering any cross-reference parts.