MP5414DV-LF-P

Power Management - Specialized Overview

The MP5414DV-LF-P is a fully integrated Power Management Unit (PMU) designed for battery-powered applications, specifically targeting 3D glasses. It features a boost converter with a low start-up voltage of 1.8V and an input range of 1.8V to 5.5V. The device includes a battery charger with adjustable current from 50mA to 300mA and a low-dropout linear regulator (LDO) providing 2% accuracy. Operating temperatures range from -40°C to 125°C in a 28-pin QFN package.

Power Management - Specialized Feature Summary

• Integrates a current-mode boost converter, four single-pole double-throw switches, and a battery charger into a single unit.
• Features a low-noise LDO with high power supply rejection ratio and adjustable output voltage regulation.
• Includes internal protection mechanisms such as soft-start, surge current limiting, and input under-voltage lockout.
• Supports efficient operation with low reverse battery current and eliminates the need for external blocking diodes.

Power Management - Specialized Applications

• Power management for 3D glasses
• Battery-powered portable electronic devices
• Single-cell lithium-ion or NiCd/NiMH battery systems

Power Management - Specialized Procurement Notes

Verify the specific suffix LF-Z or LF-P against the manufacturer's latest documentation to ensure compliance with RoHS standards and lead-free requirements. Confirm that the 28-VFQFN exposed pad package matches your PCB footprint design. Ensure the operating temperature range meets your environmental specifications before finalizing procurement orders.

Power Management - Specialized Selection Notes

Select this component when a compact solution is required for managing boost conversion, switching, and charging functions simultaneously. It is suitable for designs requiring low start-up voltage and high efficiency from single-cell batteries. Consider the thermal performance of the QFN package and the need for low ESR output capacitors for stability.

Power Management - Specialized Part Context

This part belongs to the Monolithic Power Systems PMIC family, specialized for portable consumer electronics. It consolidates multiple power stages to reduce board space and component count. The device is engineered for high integration, combining power conversion with management logic in a small form factor.

Power Management - Specialized Replacement Considerations

Check for direct substitutes within the MPS portfolio that share the same pinout and functional block diagram. Verify compatibility with existing BOM components, particularly regarding switch ratings and LDO dropout voltages. Ensure any replacement maintains the same package dimensions and thermal characteristics.

Power Management - Specialized FAQ

What is the minimum input voltage required to start the boost converter?

The boost converter can start up with an input voltage as low as 1.8V.

Does the device require external components for battery charging?

No external sampling resistors or reverse blocking diodes are required for the battery charger function.

How is the LDO output voltage regulated?

The LDO provides an adjustable output voltage with a regulation accuracy of ±2%.