MP6211DH-LF-Z

Overview

The MP6211DH-LF-Z is a single-channel power distribution switch from Monolithic Power Systems, designed for load switching applications. It features an internal N-channel MOSFET with a typical on-resistance of 90 milliohms and supports continuous output current up to 1 ampere. The device operates within a supply voltage range of 2.7 volts to 5.5 volts. Key protection mechanisms include accurate current limiting, thermal shutdown, under-voltage lockout, and reverse current blocking. It utilizes an active-high control interface and includes a status flag output. The component is housed in an 8-lead MSOP package with an exposed pad.

Feature Summary

• Integrates a low on-resistance N-channel MOSFET for efficient power distribution
• Provides comprehensive fault protection including over-current limiting and thermal shutdown
• Features a status flag output for monitoring operational state without glitching during power-up
• Supports reverse current blocking to prevent backflow into the source

Applications

• Smartphone and PDA power management
• Portable GPS device load switching
• Notebook PC peripheral power distribution
• Set-top-box and telecom network systems
• USB power distribution hubs

Procurement Notes

Verify the specific suffix designation to confirm the exact current limit threshold and control logic polarity, as variations exist within the MP6211 family. Confirm that the MSOP-8E package with exposed thermal pad matches your PCB footprint requirements. Ensure the design accounts for the maximum operating temperature of 85 degrees Celsius and validate that the quiescent current specifications meet system standby power constraints.

Selection Notes

Select this component when a single-channel solution with integrated current limiting is required for 3.3V or 5V rails. The 90-milliohm on-resistance offers a balance between conduction loss and cost compared to higher-performance alternatives. Consider the active-high control option if it aligns with the host controller's GPIO logic levels. Evaluate the thermal performance based on the expected load current and ambient conditions to ensure the junction temperature remains within safe limits during continuous operation.

Part Context

This part belongs to the MP621x series of power distribution switches, which are optimized for portable electronics. It serves as a protective element between the power source and sensitive loads, preventing damage from short circuits or overloads. The series includes variants with different current limits and control polarities, allowing designers to tailor protection levels to specific application needs while maintaining a consistent pinout and package style.

Replacement Considerations

MP6211DH-LF-P