LTC1706EMS-82#PBF

Power Supply Controllers, Monitors Overview

The LTC1706EMS-82#PBF is a precision, digitally programmable resistive ladder designed for Intel VRM 9.0/9.1 specifications. It adjusts the output of any regulator with a 0.8V reference. The device operates within an input voltage range of 2.7 V to 5.5 V and provides an adjustable output voltage range from 1.05 V to 1.825 V, with a maximum output of 1.825 V. It features low quiescent current of 100 nA and input current of 1 uA. The component functions in temperatures from -40°C to +85°C and is housed in a 10-lead MSOP package.

Power Supply Controllers, Monitors Feature Summary

• Digitally programmable resistive ladder architecture for precise voltage adjustment
• Compatible with 0.8V referenced regulators for CPU core power applications
• Low power consumption with minimal operating supply current
• Supports VID (Voltage ID) programming for dynamic voltage scaling

Power Supply Controllers, Monitors Applications

• Intel VRM 9.0 and 9.1 compliant processor power supplies
• CPU core voltage regulation modules
• Systems requiring digitally adjustable voltage levels via VID codes

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm that the EMS-82 variant matches the required VRM specification version, as other variants like the -85 exist for different standards. Ensure the MSOP-10 package footprint aligns with the PCB design. Check current availability status as distribution may be limited or discontinued depending on the lifecycle stage.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing for Intel VRM 9.0 or 9.1 architectures requiring a 0.8V reference regulator. It is suitable for applications needing digital control over output voltage without external DACs. Compare against the LTC1706EMS-85#PBF if the target system requires VRM 8.5 compatibility instead. Ensure the input voltage range of 2.7V to 5.5V fits the system's available rails.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC1706 series of PMICs from Analog Devices. It serves as a bridge between digital VID signals and analog voltage references. The series includes variants like the -82 and -85, differentiated by their supported VRM versions. These components are essential for modern CPU power delivery systems that require precise, software-controlled voltage adjustments.

Power Supply Controllers, Monitors Replacement Considerations

The LTC1706EMS-85#PBF is a related variant but supports VRM 8.5 rather than VRM 9.0/9.1. Direct substitution requires verifying VRM specification compatibility. No other direct pin-to-pin replacements are documented in the provided data.