MIC2562A-1YM

Overview

The MIC2562A-1YM is a PCMCIA/CardBus socket power controller manufactured by Microchip Technology. It features two N-channel low-side switches with a 3:2 input-to-output ratio, designed for 3.3V, 5V, and 12V loads. The device operates without an external supply voltage (Vcc/Vdd) and delivers a maximum output current of 200mA per channel. Key electrical parameters include a typical on-resistance of 70mΩ and fixed current limiting protection. It integrates overtemperature protection and status flags, functioning within a temperature range of -40°C to +85°C in a 14-SOIC package.

Feature Summary

• Integrated logic interface for direct control of PCMCIA and CardBus sockets
• Dual low-side N-channel switches with independent status flag outputs
• Built-in fixed current limit and overtemperature fault protection mechanisms

Applications

• PCMCIA card socket power management
• CardBus slot power distribution
• Laptop and portable computer peripheral power control

Procurement Notes

Verify the specific suffix '1YM' against the official Microchip datasheet to confirm pinout and thermal characteristics. Ensure the component meets RoHS compliance requirements if specified for your project. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm that the 14-SOIC package dimensions match your PCB footprint design constraints.

Selection Notes

Select this component when designing systems requiring dedicated power sequencing for PCMCIA or CardBus interfaces. It is suitable for applications needing low-side switching with integrated protection rather than high-side control. Consider the 200mA current rating and 70mΩ on-resistance for thermal management calculations. Verify compatibility with the system's logic voltage levels for the non-inverting inputs.

Part Context

The MIC2562A series belongs to Microchip's family of power switch ICs tailored for portable computing applications. These controllers simplify the complex power-up and power-down sequences required by PCMCIA and CardBus standards. The device consolidates multiple discrete components into a single integrated circuit, reducing board space and improving reliability in mobile devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.