MP26058DQ-LF-P

Overview

The MP26058DQ-LF-P is a high-performance linear single-cell lithium-ion or lithium-polymer battery charger manufactured by Monolithic Power Systems. It features integrated input polarity reverse protection and withstands input surges up to 28V. The device supports adjustable charging currents ranging from 100mA to 1A, with a wide operating input voltage range of 2.8V to 7V. It operates within a temperature range of -40°C to +85°C and is housed in a compact 10-pin QFN-3x3 package.

Feature Summary

• Integrated high-voltage input surge protection up to 28V and reverse polarity protection down to -16V
• LDO mode operation enabling system power delivery without an installed battery
• Automatic thermal regulation and battery temperature monitoring for safe charging
• Adjustable charge termination timer and current blocking capabilities

Applications

• Portable electronic devices requiring robust input protection
• Systems powered via AC adapters or USB sources
• Applications necessitating LDO mode for continuous system operation
• Battery management in space-constrained designs

Procurement Notes

Verify the specific suffix 'P' against official manufacturer documentation to confirm packaging configuration, as suffixes often denote tape-and-reel quantities versus cut tape. Ensure compatibility with the required QFN-10 footprint and validate that the 28V surge rating aligns with the target application's input specifications before finalizing procurement.

Selection Notes

Select this component when high input voltage tolerance and reverse polarity protection are critical requirements. The integrated LDO mode distinguishes it from standard chargers by allowing system operation during charging or absence of a battery. Consider the 1A maximum output current and 3mm x 3mm package size for suitability in compact, high-reliability portable applications.

Part Context

This part belongs to the MP26058 series of linear battery chargers from Monolithic Power Systems. It is designed for single-cell Li-Ion and Li-Po batteries, offering a balance of high voltage resilience and compact form factor. The series emphasizes safety through integrated thermal and battery temperature monitoring alongside standard constant-current/constant-voltage charging profiles.

Replacement Considerations

MP26058DQ-LF-Z is a verified substitute within the same series, differing primarily in packaging format while maintaining identical electrical characteristics and functionality.