MP20075DH-LF-Z

Overview

The MP20075DH-LF-Z is a precision DDR2/3/3L/4 termination low-dropout (LDO) regulator manufactured by Monolithic Power Systems. It provides an accurate VREF/2 tracking voltage for memory termination, delivering up to 3A of source/sink current. The device operates with a VDDQ input range of 1.05V to 3.6V and requires only 20μF of ceramic output capacitance for stable transient response. Key electrical specifications include ±30mV VTT output accuracy and ±18mV VTTREF output accuracy. It features Kelvin sampling capability and is housed in an 8-pin MSOP package with an exposed thermal pad.

Feature Summary

• Provides precise VREF/2 tracking voltage for DDR2/3/3L/4 memory termination applications
• Supports Kelvin sampling via dedicated VTTSEN pin for enhanced measurement accuracy
• Integrates built-in voltage divider to track VREF for accurate VTT and VTTREF generation
• Includes comprehensive protection mechanisms such as soft-start, UVLO, OCL, and over-temperature shutdown

Applications

• DDR2 memory system termination
• DDR3 memory system termination
• DDR3L memory system termination
• DDR4 memory system termination

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging and environmental compliance attributes. Confirm that the component meets RoHS requirements if applicable to your design constraints. Cross-reference the part number with the latest datasheet revision to validate all electrical parameters and mechanical dimensions before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring high-precision VTT regulation for DDR2 through DDR4 interfaces. Ensure the design accommodates the required 20μF ceramic output capacitance to maintain stability. Verify that the PCB layout supports the Kelvin sampling feature to achieve the specified ±30mV accuracy. Consider the thermal performance of the 8-pin MSOP package with exposed pad under maximum load conditions.

Part Context

This part belongs to the MPS PMIC portfolio specialized for memory power management. It serves as a critical component for maintaining signal integrity in high-speed digital systems by providing stable termination voltages. The device complements other power management solutions by handling the specific dynamic current demands of DRAM modules during data transitions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference material. Consult the manufacturer's official documentation or authorized distributors for qualified alternative components that meet identical electrical and mechanical specifications.