MP26056DQ-LF-Z

Overview

The MP26056DQ-LF-Z is a linear single-cell lithium-ion or lithium-polymer battery charger IC from Monolithic Power Systems. It supports dual inputs via USB or AC adapter and includes reverse polarity protection. The device operates with an input voltage range of 3.5 V to 6.5 V and delivers a fixed output voltage of 4.2 V. It features a maximum charge current of 1 A and draws a typical operating supply current of 200 µA. The component is housed in a QFN-10 package suitable for surface mount technology, with an operating temperature range spanning from -40 °C to +85 °C.

Feature Summary

• Supports dual-input configurations using either USB or AC adapter sources
• Integrates reverse polarity protection for enhanced input safety
• Provides linear charging regulation for single-cell lithium-based batteries

Applications

• Portable electronic devices requiring single-cell battery management
• USB-powered consumer electronics
• AC adapter powered portable equipment

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct package and thermal specifications. Confirm that the intended application voltage and current requirements align with the device's 1 A limit and 4.2 V output. Check for any regional compliance certifications required for your market. Ensure the supplier provides valid traceability documents for quality assurance purposes.

Selection Notes

Select this component when a linear charging solution is preferred for single-cell applications with dual input flexibility. It is suitable for designs where simplicity and reverse polarity protection are prioritized over high-efficiency switching architectures. Consider the QFN-10 package constraints for PCB layout and thermal dissipation capabilities relative to the expected ambient operating conditions.

Part Context

This device belongs to the MP2605 series of battery chargers from Monolithic Power Systems. It shares functional similarities with other members like the MP26053 and MP26023 but offers specific input support characteristics. The series targets compact portable electronics needing reliable linear charging management within a small form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.