RT9045GSP

Overview

The RT9045GSP is a DDR bus termination regulator manufactured by Richtek USA Inc. It provides a sink/source current of 1.8 A with an input voltage range of 1 V to 5.5 V. The device operates within a temperature range of -40°C to +85°C and features a maximum output voltage of 20 mV. Input current consumption is specified at 20 uA. It is housed in an 8-SOP-EP package.

Feature Summary

• Provides bidirectional sink and source current capability for DDR bus termination applications
• Integrates thermal shutdown and overcurrent protection mechanisms
• Includes an enable pin for power management control

Applications

• DDR memory bus termination regulation
• Server and cloud infrastructure power systems
• AI server memory modules

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and electrical characteristics. Ensure compatibility with system input voltage ranges and thermal requirements. Confirm moisture sensitivity levels and storage conditions prior to assembly. Cross-reference manufacturer part numbers to avoid substitution errors.

Selection Notes

Select this component for designs requiring precise DDR bus termination with high current handling. Evaluate thermal performance based on the SOP-8-EP package's heat dissipation capabilities. Consider the input voltage range relative to the system's power supply rails. Verify that the enable functionality aligns with system power sequencing requirements.

Part Context

This component belongs to Richtek's specialized PMIC portfolio focused on memory power solutions. It supports next-generation computing platforms including AI servers and cloud infrastructure. The product line is validated for high reliability and compatibility with major DRAM vendors.

Replacement Considerations

RT9045ZSP, RT9045AGSP, RT9045GSP are related variants within the same family.