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MIC2568-1YSM
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHAN 1:1 28SSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Switch Type：PCMCIA Switch
- Number of Outputs：4
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：Logic
- Voltage - Load：3.3V, 5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：120mA
- Rds On (Typ)：1.4Ohm
- Input Type：Non-Inverting
- Features：-
- Fault Protection：Current Limiting (Fixed), Over Temperature
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：28-SSOP
- Package / Case：28-SSOP (0.209", 5.30mm Width)
- Grade：-
- Qualification：-
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Overview
The MIC2568-1YSM is a PCMCIA power controller designed for dual-slot CardBus and PCMCIA applications. It integrates four N-channel power switches with current limiting and overcurrent protection. The device operates at 3.3V or 5V supply voltages and supports output currents up to 120mA per channel. Key electrical parameters include a maximum on-resistance of 4 ohms, a typical on-resistance of 1.4 ohms, a maximum turn-on time of 50 microseconds, and a maximum idle time of 1 microsecond. It functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates four independent N-channel power distribution switches for dual-slot PCMCIA/CardBus sockets.
- Provides fixed current limiting and overcurrent fault protection for each output channel.
- Supports standard 3.3V and 5V operating voltage requirements for legacy expansion slots.
Applications
- Dual-slot PCMCIA socket power management
- CardBus slot power control systems
- Laptop and mobile computer expansion port controllers
Procurement Notes
Verify component status carefully as the MIC2568-1YSM is classified as Not Recommended for New Designs (NRND) and is obsolete. Confirm availability through authorized distributors for existing inventory only. Ensure that any replacement strategy accounts for the discontinuation status and validates compatibility with current design requirements before procurement.
Selection Notes
Select this component specifically for maintaining legacy PCMCIA and CardBus dual-slot architectures requiring integrated power switching. Evaluate the 28-SSOP package constraints and thermal performance under load. Consider the 120mA output limit and 4-ohm on-resistance when designing for specific card power profiles. Validate that the non-inverting input logic aligns with system control signals.
Part Context
This part belongs to the Microchip Technology MIC2568 family of power distribution switches. It is engineered for low-voltage applications involving PCMCIA and CardBus interfaces. The series provides integrated solutions for managing power delivery to expansion cards, combining switching capability with essential protection features in a compact surface-mount package.
Replacement Considerations
Public confirmed substitute part numbers are not available due to the obsolete status of the MIC2568-1YSM. Designers must evaluate alternative power controllers from other manufacturers or newer generations of Microchip products that support similar PCMCIA/CardBus specifications and pinout compatibility.
