MIC2547-1YM

Overview

The MIC2547-1YM is a dual programmable current limit single high-side switch manufactured by Microchip Technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an output current of 500 mA with adjustable current limiting from 100 mA to 1.5 A. The device features a maximum on-resistance of 120 mΩ, a maximum turn-on time of 5 ms, and a maximum blanking time of 22 µs. It is designed for surface mount installation in SOIC-16 packages and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Dual channel configuration with independent programmable current limiting capabilities
• Integrated fault protection including over-temperature and reverse current blocking
• Status flag output for monitoring operational state and fault conditions

Applications

• USB power distribution systems requiring per-port current management
• Peripheral power switching in embedded computing platforms
• Battery-powered devices needing efficient load disconnect and protection

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB footprint and thermal requirements. Cross-reference the datasheet revision date to validate parameter accuracy. Confirm RoHS compliance status if required by your manufacturing standards. Always source from authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component when dual-channel high-side switching with adjustable current limits is required. Consider the 120 mΩ on-resistance for efficiency calculations. Evaluate the 2.7 V to 5.5 V operating range against your system voltage rails. The SOIC-16 package size should fit your board layout constraints. Verify that the 5 ms turn-on time meets your system startup sequencing requirements.

Part Context

The MIC2547-1YM belongs to the MIC2547 family of power distribution switches. This series is designed for USB and general-purpose power distribution applications. It integrates protection features typically found in discrete solutions into a compact integrated circuit format. The family emphasizes ease of use through programmable parameters and built-in diagnostic flags.

Replacement Considerations

Check for MIC2547 variants with different suffixes for package or reel options. Compare electrical parameters such as Rds(on) and current limits with potential substitutes. Ensure pinout compatibility before swapping components. Verify that alternative devices support the same voltage and temperature ranges.