MIC2561-0BM TR

Overview

The MIC2561-0BM TR is a power distribution switch and load driver manufactured by Microchip Technology. It features two low-side N-channel outputs with a maximum current of 200mA per channel. The device supports logic interfaces and handles load voltages of 3.3V, 5V, and 12V. Packaged in a 14-SOP (SOIC-14) format, it provides a 3:2 input-to-output ratio. Operating temperature range is specified from 0°C to +70°C. This component functions as an intelligent switch for PCMCIA card sockets and similar applications requiring controlled power distribution.

Feature Summary

• Integrates fixed current limiting and over-temperature fault protection mechanisms
• Switches system power supply voltages to VCC and VPP rails
• Manages three distinct VCC voltage states including OFF, 3.3V, and 5.0V

Applications

• PCMCIA Card Socket power management
• System power distribution switching
• Load driver circuits for portable electronics

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging configuration when sourcing. Confirm the manufacturer is Microchip Technology or its acquired entity Micrel. Ensure the package type matches the 14-SOP specification. Check that the operating temperature range meets the application requirements of 0°C to +70°C. Validate the part number against official Microchip databases to avoid counterfeit components.

Selection Notes

Select this component when a dual-channel low-side switch with integrated protection is required. It is suitable for applications needing precise control over 3.3V, 5V, and 12V loads. Consider the 200mA output limit per channel during design. The SOIC-14 package offers a compact solution for space-constrained designs. Ensure compatibility with the system's logic interface levels before integration.

Part Context

The MIC2561 series belongs to Microchip's power distribution switch family. It is often used in conjunction with other PMIC components for complete power management solutions. The device replaces discrete transistor switches, simplifying circuit design. It is commonly found in legacy PCMCIA systems and industrial control modules requiring reliable load switching.

Replacement Considerations

Direct substitutes may include other Microchip dual-channel power switches with similar pinouts and protection features. Verify electrical parameters such as on-resistance and current limits before substitution. Cross-reference with Micrel datasheets if sourcing from legacy inventory. Ensure thermal performance matches the original design constraints.