MP5516GR-0000-Z

Overview

The MP5516GR-0000-Z is a monolithic power management IC designed for enterprise SSD energy storage and release. It integrates an input current-limiting e-fuse switch and a bidirectional buck-boost converter. The device supports a wide input voltage range of 2.65V to 16V with a 6A e-fuse capability. It features a configurable storage voltage up to 36V and utilizes a compact QFN-25 (4mm x 4mm) package. Key electrical parameters include a 20mΩ RDS(ON) for the e-fuse, operating temperature from -40°C to 85°C, and supply current of 1.6mA.

Feature Summary

• Integrates an input current-limiting e-fuse switch with reverse current blocking to prevent leakage and manage surge currents during startup.
• Features a bidirectional buck-boost converter that automatically alternates between boost charging and buck release modes using constant on-time control.
• Includes an I2C interface and internal ADC for configurable parameters, capacitor health testing, and real-time monitoring of input voltage, current, and power.
• Utilizes proprietary energy management control circuitry to minimize external storage capacitance requirements while maintaining system hold-up time.

Applications

• Enterprise solid-state drive (SSD) power loss protection
• System backup energy management
• Capacitor-based energy storage systems

Procurement Notes

Verify the specific suffix 'GR-0000-Z' matches the required configuration, as ordering suffixes may indicate variations in packaging or tape-and-reel specifications. Confirm the component status is active and check for any recent revisions to the datasheet that might affect pin compatibility or thermal performance. Ensure the QFN-25 footprint aligns with the PCB design guidelines provided in the official documentation.

Selection Notes

Select this component when designing SSD power architectures requiring integrated power loss protection and energy recovery. It is suitable for applications needing a single-inductor solution to reduce board space. Consider the configurable storage voltage and charge current if customizing hold-up times. The I2C configurability allows adaptation to various system voltage levels without changing hardware components.

Part Context

The MP5516 belongs to MPS's specialized power management portfolio for data storage devices. It addresses the need for reliable data retention during unexpected power failures by managing energy flow between the input source and backup capacitors. This series replaces discrete solutions, offering higher integration and optimized performance for enterprise-grade storage applications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing designs before considering alternative PMICs from other manufacturers.

FAQ

How does the MP5516 handle reverse current flow?

The integrated e-fuse switch includes reverse current blocking functionality to prevent backup energy from flowing back to the faulted input voltage port, ensuring energy is retained for system hold-up.

What control method is used in the buck release mode?

The buck release mode employs constant on-time (COT) control to ensure stable operation and minimize voltage droop during the transition from boost charging to buck release.