ADP3168JRU-REEL7

Overview

The ADP3168JRU-REEL7 is a highly efficient, multiphase synchronous buck switching regulator controller manufactured by Analog Devices Inc. Designed for converting a 12V main supply into core voltage for high-performance Intel processors, it supports selectable 2-, 3-, or 4-phase operation at frequencies up to 1 MHz per phase. The device features a 6-bit digitally programmable output ranging from 0.8375V to 1.6V with ±10 mV worst-case differential sensing error over temperature. It operates within a supply voltage range of 4.5V to 5.5V and is housed in a 20-TSSOP package.

Feature Summary

• Supports selectable 2-, 3-, or 4-phase synchronous buck operation
• Features active current balancing between all output phases
• Includes built-in power good and crowbar blanking for on-the-fly VID code changes
• Provides logic-level PWM outputs compatible with external high-power drivers

Applications

• Desktop PC power supplies for next-generation Intel processors
• VRM modules
• Multiphase synchronous buck converter designs

Procurement Notes

Verify the specific suffix JRU against official Analog Devices documentation to confirm pinout and thermal characteristics. Confirm RoHS compliance status through the manufacturer's datasheet. Check for obsolescence notices as this component family may have been superseded by newer VRM controllers. Ensure the reel packaging matches your automated assembly requirements.

Selection Notes

Select this controller when designing power stages for Intel processors requiring precise voltage regulation and dynamic VID changes. Consider its capability for active current balancing and wide input voltage compatibility. Evaluate the need for multi-phase flexibility versus simpler single-phase alternatives. Verify that the 1 MHz switching frequency aligns with your passive component selection and EMI constraints.

Part Context

The ADP3168 belongs to Analog Devices' line of multiphase synchronous buck controllers optimized for Intel processor voltage regulation modules (VRMs). It serves as a critical interface between the main system power rail and the processor core, ensuring stable power delivery during high-load transitions. This series is distinct from lower-pin-count variants like the ADP3160 or ADP3161.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.