CS5150GDR16

Special Purpose Regulators Overview

The CS5150GDR16 is a 4-bit synchronous dual N-channel buck controller designed for high-density, high-speed logic applications. It utilizes V2 control topology to achieve a 100ns response time to load transients. The device operates within a 4.25V to 16V VCC range, typically powered by 12V with 5V main supply conversion. Key electrical characteristics include operation exceeding 1MHz frequency, 30ns gate rise/fall times, and 25ns FET non-overlap time. It features a 4-bit DAC with 1% accuracy, remote sense capability, programmable soft start, lossless short circuit protection, and overvoltage protection.

Special Purpose Regulators Feature Summary

• Dual N-channel design supporting high-current synchronous buck configurations
• V2 control topology enabling rapid transient response for demanding logic loads
• Integrated 4-bit digital-to-analog converter for precise voltage regulation
• Comprehensive protection suite including lossless short circuit and overvoltage safeguards

Special Purpose Regulators Applications

• High-density power supplies for high-speed logic circuits
• Central processing unit (CPU) core voltage regulation
• Point-of-load conversion in server and computing platforms

Special Purpose Regulators Procurement Notes

Verify the specific suffix GDR16 against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints and thermal management requirements. Confirm that the 4-bit DAC resolution meets system precision needs compared to newer 5-bit or adjustable alternatives. Validate operating temperature ranges against application environmental constraints.

Special Purpose Regulators Selection Notes

Select this component when a fixed 4-bit resolution is sufficient for voltage adjustment and rapid transient response is critical. Consider upward compatibility with CS5155/5156 if higher resolution is required later. Evaluate the need for remote sensing to compensate for board trace losses. Assess whether the 12V VCC requirement aligns with available system rails.

Special Purpose Regulators Part Context

The CS5150 series belongs to onsemi's portfolio of synchronous buck controllers targeting CPU and high-performance logic power delivery. It serves as a predecessor or alternative to 5-bit variants like the CS5155, offering a balance between cost, complexity, and performance. The GDR16 designation indicates a specific surface-mount package configuration within this family.

Special Purpose Regulators Replacement Considerations

The CS5155 and CS5156 are documented as upward compatible replacements offering enhanced resolution. Adjustable models such as the CS5120 and CS5121 provide flexible voltage setting options. Verify pinout and control interface compatibility before substituting.