ADP3157JR-REEL

Special Purpose Regulators Overview

The ADP3157JR-REEL is a highly efficient synchronous buck switching regulator controller optimized for converting the 5 V main supply into lower voltage rails. It features a 5-bit programmable digital interface that allows the DAC output to set the regulation voltage between 1.3 V and 3.5 V. Leaving all five DAC inputs open places the device into shutdown mode.

Special Purpose Regulators Feature Summary

• Synchronous buck switching regulator controller design
• Optimized for 5 V input voltage conversion
• 5-bit programmable digital control interface
• Integrated shutdown capability via digital inputs

Special Purpose Regulators Applications

• Intel Pentium III processor power systems
• General purpose controller applications requiring 5V to low-voltage conversion

Special Purpose Regulators Procurement Notes

Verify component authenticity due to obsolete status. Confirm package integrity and pin alignment against original specifications. Review available datasheets for handling precautions. Ensure compatibility with legacy system requirements before integration.

Special Purpose Regulators Selection Notes

Select this controller for legacy Intel Pentium III architectures or specific 5V-to-low-voltage synchronous buck applications. The 5-bit digital adjustment provides flexible voltage setting within the 1.3V to 3.5V range. Consider availability constraints as the part is marked obsolete.

Special Purpose Regulators Part Context

This component belongs to Analog Devices' specialized power management portfolio, historically designed for high-performance computing processors. It serves as a dedicated controller for synchronous rectification in CPU core voltage regulation circuits.

Special Purpose Regulators Replacement Considerations

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