FAN1616ASX

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

The FAN1616ASX is an adjustable positive Low Dropout (LDO) regulator manufactured by onsemi, formerly Fairchild Semiconductor. It is housed in a plastic SOT-223 package with four pins. The device features a maximum dropout voltage of 1.2 V and supports a differential input-to-output voltage range from 1.5 V to 5.75 V. Key electrical specifications include a maximum line regulation of 0.022 %/V and a maximum load regulation of 0.5%. The component is RoHS compliant and operates within a specified temperature range.

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

• Provides adjustable positive output voltage with low dropout characteristics for efficient power conversion.
• Integrates internal current limiting and thermal protection mechanisms to safeguard against overload conditions.
• Designed for high efficiency in linear regulation applications requiring minimal voltage difference between input and output.

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

• USB control power supplies
• Motherboard voltage regulation
• SDRAM module power delivery

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

Verify the specific suffix and ordering code when sourcing, as part numbers may have evolved following the integration of Fairchild Semiconductor into onsemi. Confirm that the requested unit matches the adjustable variant rather than fixed voltage versions within the same family. Ensure compatibility with the SOT-223 footprint during procurement planning.

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

Select this component when an adjustable LDO is required for USB or motherboard applications. It is suitable for designs needing 0.5A output capability with low quiescent current. Consider the 1.2V maximum dropout when determining input voltage headroom. Verify thermal performance requirements given the SOT-223 package constraints for high-power scenarios.

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

This device belongs to the FAN1616 series of LDO regulators designed for USB and PC motherboard applications. The series includes both fixed and adjustable variants, such as the 5V fixed version optimized for USB hubs. The manufacturer transitioned from Fairchild to onsemi, which may affect part numbering conventions but maintains the original functional specifications.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official onsemi resources for updated equivalents or cross-reference with other adjustable LDOs meeting similar SOT-223 and electrical criteria.