ADP3157JR

Special Purpose Regulators Overview

The ADP3157JR is a highly efficient synchronous buck switching regulator controller manufactured by Analog Devices Inc. It is optimized for converting the 5 V main supply into lower voltage levels required by Pentium III processors. The device operates within a temperature range of 0°C to +70°C and is housed in a 16-lead SOIC package with a width of 3.90 mm. This component functions as a current-mode controller designed for high-performance computing applications.

Special Purpose Regulators Feature Summary

• Optimized for converting 5 V main supplies to processor core voltages
• Designed specifically for Pentium III processor power requirements
• Current-mode control architecture for stable operation

Special Purpose Regulators Applications

• Powering Pentium III processors
• Synchronous buck conversion from 5 V main rails
• High-efficiency computing system power management

Special Purpose Regulators Procurement Notes

Verify the manufacturer part number matches ADP3157JR exactly. Confirm the package type is 16-SOIC (R-16A/SO-16). Check that the operating temperature range is specified as 0°C to +70°C. Ensure documentation confirms it is an ESD-sensitive device requiring appropriate handling during assembly and storage.

Special Purpose Regulators Selection Notes

Select this component when designing power stages for Pentium III based systems requiring a 5 V input source. The 16-SOIC package suits surface-mount assembly processes. Consider the thermal performance within the 0°C to +70°C industrial range. Verify compatibility with the specific voltage regulation needs of the target processor core.

Special Purpose Regulators Part Context

This part belongs to the ADP3157 family of synchronous controllers developed by Analog Devices Inc. It serves as a specialized solution for legacy x86 processor power delivery, distinguishing itself through optimization for Pentium III architectures rather than general-purpose DC-DC conversion tasks found in other controller families.

Special Purpose Regulators Replacement Considerations

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