ADP3158JR-REEL

DC DC Switching Controllers Overview

The ADP3158JR-REEL is a 4-bit programmable synchronous buck controller designed for high-performance processor core power supplies. It converts a 5 V main supply into required core voltages, conforming to Intel VRM 8.4 specifications. The device integrates a buck converter for the CPU core and two fixed linear regulators for system voltages, such as DDR VDDQ and GTL supplies.

DC DC Switching Controllers Feature Summary

• Optimized for converting 5 V main supplies into high-performance processor core voltages
• Conforms to Intel VRM 8.4 specifications for desktop computer designs
• Integrates dual fixed linear regulators for generating additional system voltages

DC DC Switching Controllers Applications

• CPU core switching supply generation
• DDR VDDQ supply generation
• GTL supply generation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'JR-REEL' against official Analog Devices documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with Intel VRM 8.4 requirements for your target processor design. Cross-reference part numbers carefully, as similar models like ADP3178 offer different reference architectures.

DC DC Switching Controllers Selection Notes

Select this component when designing for Intel VRM 8.4 compliance using a 5 V input. It is suitable for applications requiring a primary buck converter alongside two auxiliary linear regulators. Consider the ADP3178 if improved loop stability and transient response are needed, as it utilizes a different on-board reference architecture.

DC DC Switching Controllers Part Context

This part belongs to the ADP315x series of programmable synchronous buck controllers from Analog Devices. These devices were positioned in the mid-90s for desktop computer VRM controller markets. The ADP3158 specifically targets designs needing integrated linear regulators for secondary voltage rails alongside the main step-down conversion.

DC DC Switching Controllers Replacement Considerations

The ADP3178 is a documented successor or alternative in the same product family. It resolves stability issues found in the ADP3158 by utilizing a 1.0 V on-board reference instead of the 1.8 V and 2.5 V references used in the ADP3158.