MIC2564A-0YSM

Overview

The MIC2564A-0YSM is a power distribution switch and load driver manufactured by Microchip Technology. It features an N-channel output configuration with four independent switches arranged in a 3:4 input-to-output ratio. The device supports high-side switching for PCMCIA applications and operates within a temperature range of -40°C to 85°C TA. Key electrical parameters include a maximum output current of 120mA per channel and a typical on-resistance of 1.3 ohms. It utilizes a serial interface for control and accepts non-inverted input signals. The component is housed in a 24-SSOP package measuring 0.209 inches (5.30mm) in width.

Feature Summary

• Integrates state flag reporting for status monitoring
• Provides fixed current limiting and overtemperature fault protection
• Supports PCMCIA card slot voltage control via serial interface

Applications

• PCMCIA Cardbus Switch
• Industrial Control Applications
• Power Distribution Switches

Procurement Notes

Verify the specific suffix '0' against the manufacturer's official documentation to confirm pinout and functional compatibility, as variations exist within the series. Ensure the 24-SSOP package dimensions match the target PCB footprint requirements. Confirm RoHS compliance status if environmental regulations apply to the end product. Cross-reference the part number with the latest Microchip datasheet to validate any recent design changes or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when a multi-switch matrix solution is required for controlling multiple PCMCIA slots from fewer control lines. The 3:4 ratio allows efficient management of VCC and VPP voltages. Consider the 120mA current limit and 1.3-ohm resistance for load capacity planning. The serial interface reduces GPIO usage compared to parallel control schemes. Verify that the operating voltage range of 3.3V, 5V, and 12V aligns with the system's power architecture.

Part Context

This part belongs to the MIC2564 series of power management ICs designed for sophisticated power switching matrices. It is specifically engineered to manage voltages for two PC Card slots. The series includes variants with different packages and startup characteristics, such as low-voltage startup capabilities. The MIC2564A-0YSM represents a specific configuration within this family, optimized for surface-mount assembly in compact electronic designs requiring reliable load driving.

Replacement Considerations

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