MP5516GR-0000-P

Overview

The MP5516GR-0000-P is a power loss protection management IC designed for enterprise SSDs. It operates within an input voltage range of 2.65V to 16V and supports up to 6A current handling. The device integrates an e-fuse with low on-resistance and a bidirectional buck-boost converter for energy storage and release. It features configurable overvoltage protection, soft-start times, and a programmable storage voltage up to 36V. The component utilizes a QFN-25 (4mmx4mm) package and includes an I2C interface for configuration and monitoring.

Feature Summary

• Integrates an e-fuse switch with reverse current blocking to prevent leakage and manage surge currents during startup.
• Employs a dedicated energy storage and release control circuit that minimizes external capacitor requirements through high storage voltage generation.
• Provides digital configurability via I2C interface for setting limits, enabling health testing, and monitoring system parameters.
• Utilizes constant on-time (COT) control to reduce voltage droop during mode transitions between boost charging and buck release.

Applications

• Enterprise Solid State Drive (SSD) power backup management
• System energy storage and release units
• Power loss protection circuits

Procurement Notes

Verify the specific suffix code against the manufacturer's latest documentation, as ordering suffixes may indicate variations in packaging or tape-and-reel specifications. Confirm the part status, as some listings indicate this specific variant may be obsolete or superseded by newer revisions. Ensure compatibility with the required operating temperature range and input voltage constraints for the target application design.

Selection Notes

Select this component for applications requiring integrated power loss protection without discrete fuse and converter combinations. The single-inductor solution reduces overall footprint compared to multi-component designs. Consider the I2C configurability for systems needing adjustable thresholds for overvoltage protection and charging currents. Verify that the thermal performance of the QFN-25 package meets the heat dissipation requirements of the specific board layout.

Part Context

This part belongs to the MP5516 series of specialized PMICs from Monolithic Power Systems. It is distinct from other series like the MP5496 or MP5515, which offer different pin counts, voltage ranges, or channel configurations. The MP5516 is specifically engineered for high-efficiency energy management in data storage environments, focusing on rapid discharge capabilities during power interruptions.

Replacement Considerations

Check for updated MPS revisions such as the MP5516GR-xxxx-Z series, which may offer improved availability or minor parameter adjustments. Compare against the MP5515GU-P for similar SSD backup functions if pinout or package differences are acceptable. Verify functional equivalence regarding the bidirectional converter architecture and e-fuse characteristics before substitution.

FAQ

How does the MP5516 handle reverse current flow?

The integrated e-fuse provides reverse current blocking functionality, preventing stored backup energy from flowing back into the faulted input voltage port during power loss events.

What control method is used during the buck release mode?

The device uses Constant On-Time (COT) control during steady-state operation in the buck release mode to minimize voltage droop when transitioning from boost charging.