MM3860AC7ZRE

Battery Management Overview

The MM3860AC7ZRE is a switch-mode step-down regulator manufactured by Mitsumi Electric Company Ltd. It integrates a power MOSFET and supports an input voltage range of 4.5V to 21V. The device provides a fixed output voltage of 3.3V with a maximum output current of 1.5A. It operates at a switching frequency of 300kHz and includes built-in protection features such as overcurrent protection, thermal shutdown, and undervoltage lockout. The component is housed in a compact SON-6 package.

Battery Management Feature Summary

• Integrates a high-side power MOSFET for efficient step-down conversion
• Includes comprehensive protection mechanisms against overcurrent and overheating
• Operates reliably across a wide industrial temperature range

Battery Management Applications

• Portable electronic devices requiring stable low-voltage power
• Embedded systems utilizing microcontrollers or DSPs
• Battery-powered equipment needing efficient DC-DC regulation

Battery Management Procurement Notes

Verify the specific suffix '7ZRE' against official manufacturer documentation to confirm tape-and-reel packaging specifications and lead-free compliance status. Ensure that the ordering information matches the exact part number variant required for your assembly process. Cross-reference datasheet revision levels to validate pin compatibility and electrical characteristics before finalizing procurement orders.

Battery Management Selection Notes

Select this component when a compact solution is needed for converting higher voltages down to 3.3V. The integrated MOSFET design reduces external component count compared to discrete solutions. Consider the 300kHz switching frequency for balancing efficiency and filter size requirements. Verify that the load current does not exceed the 1.5A limit under all operating conditions.

Battery Management Part Context

This device belongs to the MM3860 series of synchronous buck converters designed for space-constrained applications. The family offers various output voltage options while maintaining a consistent footprint. The MM3860AC7ZRE specifically targets 3.3V output applications within the broader portfolio of Mitsumi power management ICs.

Battery Management Replacement Considerations

Direct replacements must match the SON-6 package and 1.5A current rating. Verify pin-to-pin compatibility and identical control logic. Check if alternative suppliers offer equivalent thermal performance and switching frequencies to ensure seamless integration without circuit redesign.