MIC2025-1BM

Overview

The MIC2025-1BM is a high-side N-channel MOSFET power switch from the MM8 series, designed for general-purpose power distribution with circuit protection. It operates within a load voltage range of 2.7V to 5.5V and supports a maximum output current of 500mA. The device features a typical on-resistance (RdsOn) of 90mΩ and utilizes an 8-pin tube package. Key electrical parameters include fixed current limiting, overtemperature protection, and under-voltage lockout (UVLO). It functions as a single-channel switch with an on/off interface.

Feature Summary

• Integrated circuit protection including fixed current limiting, overtemperature shutdown, and under-voltage lockout.
• High-side N-channel MOSFET configuration optimized for low on-resistance power distribution.
• Controlled slew rate to minimize inrush current during turn-on events.

Applications

• General-purpose power distribution systems requiring circuit protection
• Battery-powered portable devices
• Peripheral power switching in consumer electronics

Procurement Notes

Verify component status carefully as this specific part number may be discontinued or superseded by newer revisions such as the -1YM variant. Confirm package type compatibility, as the -1BM typically uses a tube while modern equivalents often use tape and reel. Ensure the design accounts for the 500mA current limit and thermal dissipation requirements within the specified operating temperature range of -40°C to 85°C.

Selection Notes

Select this component for applications requiring a simple, cost-effective high-side switch with built-in fault protection. It is suitable for loads drawing up to 500mA where a 90mΩ on-resistance provides acceptable efficiency. Consider the -1YM variant if surface-mount tape-and-reel packaging is required for automated assembly, as the -1BM is historically associated with tube packaging.

Part Context

The MIC2025 belongs to Microchip's MM8 series of power switches, derived from Micrel technology. This series is engineered for robust performance in portable and battery-operated equipment. The -1BM designation specifically indicates an 8-pin tube package version, which is often found in legacy designs or manual assembly contexts compared to the tape-and-reel -1YM variants.

Replacement Considerations

The MIC2025-1YM-TR is a direct functional equivalent with identical electrical specifications but utilizes an 8-SOIC tape-and-reel package instead of the tube format. Verify pinout compatibility when substituting, although both share the same 8-pin SOIC footprint.