MIC2566-1BTS

Overview

The MIC2566-1BTS is a single-slot PC Card and CardBus power controller manufactured by Microchip Technology. It functions as a VCC and VPP power switch matrix designed to support 3.3V and 5V PC Card (PCMCIA) slot power supplies. The device features precise current control capabilities for application stability. It utilizes an N-channel output interface with logic control signals. The maximum output current rating is specified at 120mA. The component is housed in a 14-pin TSSOP package, measuring 0.173 inches or 4.40mm in width. This integrated circuit serves as a dedicated load driver and power distribution switch for portable computing memory applications.

Feature Summary

• Integrated VCC and VPP power switch matrix for single-slot configurations
• Precise current control mechanism for stable power delivery
• Logic-controlled N-channel output interface
• Designed specifically for PC Card and CardBus power management

Applications

• Single-slot PC Card power supply management
• CardBus slot power distribution
• PCMCIA interface power control
• Portable computer memory card power switching

Procurement Notes

Verify the specific manufacturer source, as historical documentation may reference Micrel prior to acquisition. Confirm the exact package marking matches the 14-TSSOP specification. Ensure the part number suffix aligns with the required temperature range and tape-and-reel configuration if applicable. Cross-reference the datasheet version to confirm compatibility with 3.3V and 5V logic levels. Validate authenticity through authorized channels to avoid counterfeit components.

Selection Notes

Select this component when a dedicated solution for single-slot PC Card or CardBus power sequencing is required. It is suitable for designs needing integrated VCC and VPP switching without external discrete transistors. Consider the 120mA current limit when sizing for high-power peripherals. The TSSOP package is appropriate for space-constrained mobile devices. Verify that the logic input voltage levels match the system's microcontroller or host controller outputs.

Part Context

The MIC2566 series belongs to the family of power distribution switches and load drivers. It is categorized under Power Management ICs (PMIC). The device addresses the specific power requirements of legacy expansion slots in laptops and handheld devices. It consolidates multiple switching functions into a single surface-mount package, reducing board space compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. The MIC2566-0BTS is a related dual-channel variant but does not serve as a direct pin-to-pin replacement for the single-slot MIC2566-1BTS. Any substitution requires careful verification of channel count and pinout compatibility.