MP2631DQ-LF-P

Overview

The MP2631DQ-LF-P is a linear single-cell lithium-ion or lithium-polymer battery charger IC manufactured by Monolithic Power Systems. It operates with an input voltage range of 3.5 V to 6.5 V and delivers a maximum charge current of 1 A. The device regulates the charging voltage to 4.2 V. It features an integrated NTC thermistor for temperature monitoring during the charging process. The component is housed in a QFN-10 surface-mount package and supports operation within a junction temperature range of -40°C to +85°C.

Feature Summary

• Linear charging architecture optimized for single-cell Li-Ion and Li-Polymer batteries
• Integrated NTC thermistor interface for continuous battery temperature monitoring
• Compact QFN-10 surface-mount package design

Applications

• Single-cell lithium-ion battery charging systems
• Lithium-polymer battery management circuits
• Portable electronic devices requiring compact power management solutions

Procurement Notes

Verify the specific suffix designation, as 'P' typically indicates tape and reel packaging while 'Z' may denote cut tape or alternative packaging configurations. Confirm RoHS compliance status through official datasheets. Ensure the selected variant matches the required supply chain packaging format for your assembly line. Cross-reference manufacturer part numbers to avoid confusion between similar MPS battery charger models.

Selection Notes

Select this component when designing for single-cell lithium-based chemistries requiring linear regulation. The 1 A current limit suits applications with moderate power consumption constraints. Verify that the system input voltage remains within the specified 3.5 V to 6.5 V window. Consider the thermal performance of the QFN-10 package relative to the expected ambient operating conditions and PCB copper area available for heat dissipation.

Part Context

This part belongs to the Monolithic Power Systems portfolio of battery management integrated circuits. It serves as a dedicated solution for managing the charge cycle of portable energy storage cells. The device integrates essential safety features such as thermal monitoring to ensure reliable operation across various consumer and industrial electronics platforms.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for direct replacements or pin-compatible alternatives.