MP2615GQ-Z

Overview

The MP2615GQ-Z is a high-efficiency switch-mode battery charger designed for single or dual-cell lithium-ion and lithium-polymer batteries. It supports an input voltage range of 4.75 V to 18 V and delivers a programmable maximum charging current of 2 A, regulated via an external sense resistor. The device provides a fixed output voltage of 4.2 V with ±0.75% accuracy. Operating within a temperature range of -40°C to +125°C, it utilizes a QFN-16 (3mm x 3mm) surface-mount package.

Feature Summary

• Implements constant-off-time control mode enabling up to 99% duty cycle operation for sustained high charge currents near input voltages
• Integrates full power switches and internal loop compensation while eliminating the need for external reverse blocking diodes
• Monitors battery temperature and charging status continuously with dedicated indicator pins for system feedback

Applications

• Single-cell lithium-ion battery charging systems
• Dual-cell lithium-ion battery charging applications
• Lithium-polymer battery management circuits
• Portable electronic devices requiring efficient USB or adapter charging

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number MP2615GQ-Z with official Monolithic Power Systems documentation. Confirm that the specific suffix Z aligns with RoHS compliance requirements as indicated in public datasheets. Ensure the QFN-16 package dimensions match your PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring high efficiency across wide input voltage ranges from 4.75 V to 18 V. It is suitable for applications needing precise voltage regulation with ±0.75% accuracy and integrated thermal protection. Consider the 3mm x 3mm QFN-16 package constraints for space-limited designs requiring surface-mount installation.

Part Context

This device belongs to the MP2615 series of battery chargers manufactured by Monolithic Power Systems. It is categorized under PMIC battery management solutions. The GQ-Z suffix denotes the specific package type and environmental compliance status within the product lineup, distinguishing it from other variants like the MP2615GQ-P.

Replacement Considerations

The MP2615GQ-P is a confirmed substitute part number within the same family offering identical electrical characteristics and functionality.