CS5159GD16

Special Purpose Regulators Overview

The CS5159GD16 is a CPU 5-bit synchronous buck controller designed by onsemi. It features an input voltage range of 4.25V to 16V and provides multiple output voltages. The device is housed in a 16-SOIC package with a width of 3.90mm. It operates within a junction temperature range of 0°C to 150°C. This component is specifically engineered to power Pentium II processors and other high-performance core logic systems.

Special Purpose Regulators Feature Summary

• Designed as a 5-bit synchronous buck controller for CPU power applications
• Supports multiple output voltage configurations
• Operates with an input voltage range from 4.25V to 16V
• Compatible with Intel Pentium II processor architectures

Special Purpose Regulators Applications

• Intel Pentium II processor power supply design
• High-performance core logic powering
• Synchronous buck converter implementations for CPUs

Special Purpose Regulators Procurement Notes

Verify component status carefully, as the CS5159GD16 may be discontinued or subject to supply limitations. Confirm availability through official distributors before finalizing designs. Ensure compatibility with legacy Intel Pentium II platforms. Check for updated replacement components if current stock is unavailable. Validate datasheet revisions for any parameter changes.

Special Purpose Regulators Selection Notes

Select this controller for legacy Pentium II-based systems requiring synchronous buck regulation. Consider the 5-bit resolution for voltage adjustment granularity. Evaluate the 16-SOIC package constraints for PCB layout. Verify input voltage compatibility within the 4.25V to 16V range. Assess thermal performance requirements given the 150°C maximum junction temperature rating.

Special Purpose Regulators Part Context

The CS5159 belongs to onsemi's special purpose regulator line, targeting specific CPU voltage regulation needs. It complements the broader PMIC portfolio focused on intelligent power solutions. This part addresses historical computing architecture requirements, distinct from modern multi-phase controllers. It represents a specialized solution for defined processor generations rather than general-purpose power management.

Special Purpose Regulators Replacement Considerations

Check for discontinued status when sourcing. Identify equivalent synchronous buck controllers with similar pinouts if redesigning. Verify voltage step-down capabilities match original specifications. Ensure thermal management strategies remain adequate for replacement components.