MM3220MB1NRH

Overview

The MM3220MB1NRH is a fixed positive single output LDO regulator manufactured by Mitsumi Electric Company Ltd. It belongs to the power supply and power management category, specifically designed for battery protection applications involving two-cell lithium-ion or polymer batteries. The device operates within a temperature range of -40°C to 85°C and utilizes an SOT-23-6 package (also referred to as SOT-26A in some documentation). Key protection features include overcurrent, overvoltage, and short circuit safeguards.

Feature Summary

• Provides comprehensive battery protection for two-cell lithium-ion and polymer configurations
• Integrates overcurrent, overvoltage, and short circuit fault protection mechanisms
• Designed for surface mount technology installation in compact electronic assemblies

Applications

• Two-cell lithium-ion battery pack protection circuits
• Lithium-polymer battery management systems
• Portable electronic devices requiring dual-cell power regulation

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm exact electrical parameters and pinout configurations. Ensure compatibility with the target application's voltage and current requirements. Confirm packaging details such as tape and reel specifications if required for automated assembly processes. Cross-reference part numbers with official Mitsumi Electric Company Ltd resources to avoid counterfeit components.

Selection Notes

Select this component when designing protection circuits for two-cell lithium-based battery systems. Consider the operating temperature range and package constraints during PCB layout. Evaluate the need for integrated overcurrent and overvoltage protection versus external solutions. Verify that the SOT-23-6 footprint aligns with existing board designs or allows for necessary modifications.

Part Context

This component is part of the MM3220 series from Mitsumi Electric Company Ltd, which focuses on battery management and protection ICs. Similar parts in the series include the MM3220MC1NRH and MM3220AA1NRH, which offer comparable functionality for different cell configurations or protection profiles. The series is widely used in consumer electronics and portable devices requiring reliable battery safety management.

Replacement Considerations

Direct substitutes may include other MM3220 series variants like MM3220MC1NRH, depending on specific cell count and protection requirements. Verify pin-to-pin compatibility and electrical characteristics before substitution. Consult official manufacturer cross-reference lists for approved alternatives.