RC1585T15

Overview

The RC1585T15 is a specialized voltage regulator integrated circuit manufactured by onsemi, designed for high-performance computing applications. It functions as a single-output converter specifically optimized for Intel Pentium II GTL+ processor power requirements. The device operates within an input voltage range of 3.3V to 7V and delivers regulated output suitable for core voltage generation. Packaged in a TO-220-3 format, it supports through-hole mounting for robust thermal management in legacy server and workstation architectures.

Feature Summary

• Specialized regulation architecture tailored for Intel Pentium II GTL+ processor voltage specifications
• Single-output conversion capability providing stable core power delivery
• Wide input voltage operational range supporting 3.3V to 7V supply sources

Applications

• Intel Pentium II processor core voltage regulation
• GTL+ signal termination power supplies
• Legacy server motherboard power distribution networks

Procurement Notes

This component is officially listed as obsolete and no longer in production by the manufacturer. Sourcing requires verification of availability from third-party distributors or surplus inventory providers. Buyers must confirm part authenticity and condition carefully, as new original stock may be limited. Alternative solutions should be evaluated for long-term supply chain stability given the discontinued status.

Selection Notes

Engineers selecting this part must ensure compatibility with Intel Pentium II GTL+ power requirements. The TO-220-3 package dictates specific PCB layout and thermal design considerations due to its through-hole nature. Input voltage ranges between 3.3V and 7V must be validated against system power rails. This component is suitable only for maintenance or repair of existing legacy systems rather than new designs.

Part Context

The RC1585T15 belongs to onsemi's portfolio of special-purpose voltage regulators targeting high-end computing processors. It represents a niche solution for specific legacy CPU generations requiring precise voltage regulation. The product line focuses on delivering stable power for critical logic cores in professional workstations and servers during the late 1990s and early 2000s era.

Replacement Considerations

Publicly documented substitutes include the LMS1585ACT-1.5/NOPB. Engineers should verify pinout compatibility and electrical parameter alignment before substitution. Cross-reference datasheets to ensure equivalent performance characteristics for the target application.