FAN1587AMCX

Special Purpose Regulators Overview

The FAN1587AMCX is a fixed positive Low Dropout (LDO) voltage regulator manufactured by Fairchild Semiconductor. It provides a fixed output voltage of 3.3V with a maximum continuous output current capability of 3A. The device features a maximum dropout voltage of 1.3V at full load and supports an input voltage range up to 18V. It operates within a junction temperature range of 0°C to +125°C and is housed in a TO-263-3 (D2PAK) surface-mount package.

Special Purpose Regulators Feature Summary

• Provides stable regulated power for digital logic circuits requiring a fixed 3.3V supply rail
• Capable of delivering high continuous current loads up to 3A for demanding applications
• Designed for efficient operation with low dropout characteristics under heavy load conditions

Special Purpose Regulators Applications

• Powering field programmable gate arrays (FPGAs)
• Supplying power to complex programmable logic devices (CPLDs)
• Providing regulated voltage for microprocessor core supplies

Special Purpose Regulators Procurement Notes

Verify the specific manufacturer origin, as this component was originally produced by Fairchild Semiconductor prior to its acquisition by onsemi. Confirm that the part status aligns with project requirements, noting that many variants in this series are marked as obsolete or discontinued. Ensure compatibility with existing thermal management designs given the power dissipation capabilities of the TO-263 package.

Special Purpose Regulators Selection Notes

Select this component when a robust 3.3V source is required for high-current digital loads. The TO-263-3 package facilitates effective heat dissipation compared to smaller surface-mount options. Consider the 18V maximum input rating when designing for systems with higher bus voltages. Verify that the fixed 3.3V output meets the target circuit's tolerance requirements without needing external adjustment resistors.

Special Purpose Regulators Part Context

The FAN1587 series consists of adjustable and fixed LDO regulators designed for Intel processor applications. The AMCX suffix indicates a fixed 3.3V output version packaged in a TO-263-3 format. This family is characterized by bipolar technology and is intended for use in computer and communication equipment where reliable linear regulation is necessary.

Special Purpose Regulators Replacement Considerations

Direct substitutes include other FAN1587 variants with identical pinouts and electrical specifications, such as the FAN1587AM33X. Cross-reference with onsemi datasheets for updated availability and equivalent performance metrics if sourcing from the current manufacturer.