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MIC2545A-2YN
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Product Detailed Parameters
- Description：IC PWR SWITCH N-CHANNEL 1:1 8DIP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Switch Type：USB Switch
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：On/Off
- Voltage - Load：2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：Not Required
- Current - Output (Max)：3A
- Rds On (Typ)：35mOhm
- Input Type：Non-Inverting
- Features：Slew Rate Controlled, Status Flag
- Fault Protection：Current Limiting (Adjustable), Over Temperature, Reverse Current
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：8-DIP
- Package / Case：8-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The MIC2545A-2YN is a single-channel high-side power switch from Microchip Technology, designed for low-loss DC power distribution. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current up to 500 mA, with a programmable current limit adjustable between 500 mA and 3 A. The device features a maximum on-state resistance of 50 mΩ and utilizes an 8-pin PDIP package. It includes protection mechanisms such as thermal shutdown and reverse battery protection, functioning reliably across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrated programmable current limiting capability for precise load protection
- High-side switching architecture optimized for low conduction losses
- Built-in thermal shutdown and reverse voltage protection circuits
Applications
- USB hub power distribution systems
- Peripheral power management in embedded controllers
- Battery-powered equipment load switching
Procurement Notes
Verify the specific suffix '2Y' against the official Microchip datasheet to confirm the exact current limit setting and package variant. Ensure the DIP-8 through-hole configuration matches your PCB layout requirements. Cross-reference the active status and RoHS compliance details directly with the manufacturer's latest documentation before finalizing procurement orders.
Selection Notes
Select this component when a single-channel high-side switch with adjustable current limiting is required for 5V logic applications. Consider the 50 mΩ on-resistance for efficiency calculations and verify that the 8-pin DIP package fits the assembly constraints. Ensure the input voltage stays within the 2.7 V to 5.5 V range for proper operation.
Part Context
This part belongs to the MIC2545A series of integrated power switches. It is specifically engineered for USB and general DC power distribution tasks. The device simplifies circuit design by combining switching, current limiting, and protection functions into a single compact package, reducing component count compared to discrete solutions.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Consult Microchip Technology for direct replacements or pin-compatible alternatives.
