CS5158GD16

Special Purpose Regulators Overview

The CS5158GD16 is a CPU 5-bit synchronous buck controller designed for Intel Pentium II voltage regulator applications. It features a single output configuration with an input voltage range of 4.25V to 16V. The device operates within a junction temperature range of 0°C to 150°C and is housed in a 16-SOIC package (0.154 inch, 3.90mm width). This component serves as a specialized power management IC for processor core regulation.

Special Purpose Regulators Feature Summary

• Synchronous buck control architecture optimized for CPU power delivery
• Integrated 5-bit digital control interface for precise voltage regulation
• Designed specifically for Intel Pentium II processor voltage requirements

Special Purpose Regulators Applications

• Intel Pentium II processor voltage regulation
• CPU core power supply design
• Desktop computer motherboard power stages

Special Purpose Regulators Procurement Notes

Verify the exact suffix GD16 against the manufacturer's current datasheet to confirm pinout and electrical specifications. Confirm that the component status is active or obsolescence managed, as availability may vary. Ensure the 16-SOIC package dimensions match the PCB footprint requirements. Check for any specific ordering restrictions or lifecycle notices from onsemi before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this controller when designing for legacy Intel Pentium II platforms requiring synchronous buck conversion. Compare input voltage ranges and thermal performance against alternative PMICs if modern processors are involved. Verify compatibility with the required output voltage steps and load transient response needs. Ensure the SOIC-16 package fits the available board space and thermal dissipation constraints.

Special Purpose Regulators Part Context

This part belongs to onsemi's special purpose regulator line, specifically targeting CPU voltage regulation for older generation processors. It falls under the broader category of power management integrated circuits (PMIC) used in desktop computing systems. The CS5158 series provides dedicated solutions for stable processor core power delivery.

Special Purpose Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult onsemi technical support for direct replacements or compatible alternatives for the CS5158GD16.