MIC2033-55AYMT-TR

Overview

The MIC2033-55AYMT-TR is a high-side power distribution switch manufactured by Microchip Technology. It features a fixed current limit of 550mA with 5% accuracy, ensuring precise load protection. The device operates within a supply voltage range of 2.5V to 5.5V and exhibits a typical on-resistance of 75mΩ. Packaged in a compact 6-TDFN (2x2mm) format with an exposed pad, it supports non-inverting input control. Key electrical characteristics include a maximum turn-on time of 700µs and a maximum idle time of 5µs, suitable for efficient power management applications.

Feature Summary

• High-accuracy 5% fixed current limit for reliable load protection
• Integrated status flag output for fault indication
• Slew rate controlled turn-on to minimize inrush current
• Compact TDFN package with exposed thermal pad

Applications

• Portable consumer electronics power distribution
• Industrial equipment peripheral power switching
• Automotive infotainment system load protection

Procurement Notes

Verify the complete part number including the suffix -TR for tape-and-reel packaging configuration. Confirm the specific current limit variant (550mA) matches the design requirements, as the MIC2033 family offers multiple current options. Ensure compatibility with the 6-TDFN footprint and thermal management needs due to the exposed pad design. Cross-reference datasheet revisions to confirm pinout consistency.

Selection Notes

Select this component when precise current limiting with 5% accuracy is required for high-side switching applications. The 550mA rating suits moderate load currents where low on-resistance reduces power dissipation. Consider the non-inverting logic interface for direct microcontroller control. The exposed pad design necessitates adequate PCB copper area for thermal relief during operation.

Part Context

This device belongs to the MIC2033 series of high-side power switches designed for robust system reliability. The series utilizes advanced MOSFET technology to provide fast response times and accurate current limiting. The -55A suffix typically denotes the specific 550mA current limit variant within the product line, distinguishing it from other current ratings available in the same package family.

Replacement Considerations

Direct substitutes may include other MIC2033 variants with different current limits if the protection threshold can be adjusted or tolerated. Verify that alternative components maintain the 6-TDFN footprint and compatible logic levels. Check datasheets for equivalent slew rate control and fault protection features to ensure system behavior remains consistent.