RC1587T

Overview

The RC1587T is an adjustable positive low dropout linear regulator manufactured by Fairchild Semiconductor. It provides a maximum output current of 3A with an input voltage range of 4.5V to 7V. The output voltage is adjustable from 1.5V to 3.6V, featuring a typical dropout voltage of 1.3V at full load. The device operates within a junction temperature range of 0°C to 125°C and is housed in a TO-220 package.

Feature Summary

• Adjustable output voltage capability for flexible power supply design
• High current delivery of 3A suitable for demanding loads
• Low dropout operation ensures efficiency under varying input conditions

Applications

• Intel Pentium II GTL+ power conversion
• General purpose DC-DC converter circuits
• Pro series application power regulation

Procurement Notes

Verify component authenticity through authorized distributors as the part status is obsolete. Confirm package integrity and pin configuration match the TO-220 specification. Check for RoHS compliance documentation if required for specific manufacturing standards. Ensure replacement strategies are evaluated due to end-of-life status.

Selection Notes

Select this regulator when a stable 3A output is required from a 4.5V to 7V input source. The adjustable output range allows customization between 1.5V and 3.6V. Consider thermal management requirements for the TO-220 package given the high current capability. Verify compatibility with legacy Intel Pentium II GTL+ designs or similar vintage systems.

Part Context

This component belongs to the RC1587 series of low dropout regulators produced by Fairchild Semiconductor, now part of ON Semiconductor. The series includes fixed and adjustable variants designed for data communications and processor core voltage regulation. The RC1587T specifically denotes the adjustable version in a through-hole TO-220 package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, equivalent functional replacements must be identified through independent cross-reference databases or manufacturer obsolescence notices.