MP26057DQ-LF-P

Overview

The MP26057DQ-LF-P is a linear single-cell lithium-ion and lithium-polymer battery charger from Monolithic Power Systems. It operates with an input supply voltage range of 3.5 V to 5.5 V and provides a fixed output charging voltage of 4.2 V. The device supports a maximum charge current of 1 A. It features programmable charge termination timer and comprehensive fault protection mechanisms, including over-temperature detection. The component is housed in a 10-VFDFN exposed pad package and is designed for surface mount installation.

Feature Summary

• Linear charging architecture optimized for single-cell lithium-ion and lithium-polymer batteries
• Integrated programmable charge termination timer for automated cycle control
• Built-in over-temperature fault protection to ensure safe operation under thermal stress

Applications

• Portable consumer electronics requiring single-cell Li-ion power management
• USB-powered devices utilizing standard 5V input sources
• Compact handheld gadgets with limited board space constraints

Procurement Notes

Verify the specific suffix 'P' against official MPS documentation to confirm tape-and-reel packaging specifications. Ensure the operating environment remains within the -40°C to +85°C temperature range. Cross-reference the 10-VFDFN footprint dimensions with your PCB layout guidelines to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a simple linear solution is preferred over switching regulators for low-noise applications. It is suitable for systems powered directly by USB or regulated 5V rails where efficiency loss is acceptable. Consider the 1A current limit and thermal dissipation requirements of the exposed pad design for proper heat management in enclosed enclosures.

Part Context

This part belongs to the MP26057 series of battery chargers from Monolithic Power Systems. The series targets portable applications needing reliable single-cell management. The DQ package designation indicates a specific thermal and mechanical form factor common in modern compact electronic designs.

Replacement Considerations

MP26057DQ-LF-Z: Identical electrical characteristics with different packaging format.