MIC2563A-0YSM-TR

Overview

The MIC2563A-0YSM-TR is a dual-slot PCMCIA/CardBus socket power controller manufactured by Microchip Technology in a 28-pin SSOP package. It manages VCC and VPP voltage switching for two PC card slots, supporting VCC levels of 0V, 3.3V, and 5.0V, and VPP levels of OFF, 0V, 3.3V, 5V, or 12.0V. The device features self-biased switches requiring no +12V bias supply for 3.3V or 5V outputs. It provides over 1A output current for VCC and 250mA for VPP, with a typical static current of 0.3µA in standby mode.

Feature Summary

• Integrates complete switch matrix for dual PC Card/CardBus sockets within a single package to save board space.
• Utilizes self-biased design for medium and high-current outputs, eliminating the need for external 12V bias supplies.
• Ensures stable power switching through break-before-make operation, preventing voltage shoot-through and transients.
• Incorporates comprehensive protection mechanisms including output current limiting, thermal shutdown, and cross-conduction lockout.

Applications

• Dual slot PC Card and CardBus socket power management
• Data collection systems and machine control data input
• Barcode data collection systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout compatibility and environmental compliance. Ensure the selected variant matches the required package type and lead-free specifications for your assembly process. Cross-reference the part number with the latest datasheet revision to validate all electrical characteristics and functional descriptions before procurement.

Selection Notes

Select this component when designing systems requiring independent control of VCC and VPP voltages for two PCMCIA or CardBus slots. It is suitable for applications needing low standby current and robust protection features without external bias generation. Consider its compatibility with standard PC card logic controllers and its ability to handle high output currents efficiently.

Part Context

This device is an improved version of the MIC2563, offering lower on-resistance and enhanced functionality such as VCC pull-down clamping in shutdown mode. It belongs to Microchip's family of power distribution ICs designed specifically for portable computing and expansion slot applications, providing a compact solution for complex power sequencing requirements.

Replacement Considerations

The MIC2563 is the predecessor model; verify if the improved on-resistance and shutdown clamping features are required. The MIC2562A controls only a single slot and uses a different package, making it unsuitable for direct dual-slot replacement without schematic redesign.

FAQ

Does the MIC2563A require an external 12V supply for operation?

No, the device uses a self-biased design that does not require a +12V power supply for 3.3V or 5V outputs.

What protection features are included in the MIC2563A?

It includes output current limiting, thermal shutdown, and full cross-conduction lockout to protect the system during switching operations.