MP26058DQ-LF-Z

Overview

The MP26058DQ-LF-Z is a high-performance linear single-cell lithium-ion or lithium-polymer battery charger featuring integrated input polarity reverse protection and up to 28V surge tolerance. It supports an input voltage range of 2.8V to 7V with adjustable charging current from 100mA to 1A. The device operates in Constant Current/Constant Voltage (CC/CV) modes, includes a programmable timer, and offers LDO mode for system power without a battery. Key specifications include a QFN-10 (3mm x 3mm) package, -40°C to +85°C operating temperature, and low standby current.

Feature Summary

• Integrated 28V input surge protection and reverse polarity protection down to -16V
• LDO mode operation enables system powering when no battery is connected
• Adjustable charge timer prevents overcharging of defective batteries
• Automatic thermal regulation limits junction temperature during high-load conditions

Applications

• Portable consumer electronics powered by USB or AC adapters
• Single-cell Li-Ion/Li-Po battery management systems
• IoT devices requiring robust input protection against surges
• Systems needing continuous power supply via LDO mode

Procurement Notes

Verify the specific suffix (LF-Z) corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the QFN-10 footprint matches the PCB layout guidelines provided in the datasheet to maintain thermal performance and electrical integrity.

Selection Notes

Select this component for applications requiring high input voltage tolerance and reverse polarity protection without external diodes. The adjustable current setting allows optimization for different battery capacities. Consider the LDO functionality if the design requires uninterrupted system operation during battery removal or charging cycles.

Part Context

This part belongs to the MP26058 series of linear chargers from Monolithic Power Systems. It is designed for compact portable devices where space efficiency and input robustness are critical. The QFN-10 package facilitates surface-mount installation in dense PCB layouts.

Replacement Considerations

MP26058DQ-LF-P is a pin-compatible alternative with identical electrical characteristics but differs in packaging configuration.