MIC2178-3.3BWM-TR

Voltage Regulators - DC DC Switching Regulators Overview

The MIC2178-3.3BWM-TR is a synchronous buck switching regulator IC from Microchip Technology, featuring a fixed 3.3V output and a maximum continuous output current of 2.5A. It operates with a fixed internal switching frequency of 200kHz and supports an input voltage range from 4.5V to 20V. The device utilizes current-mode control for rapid transient response and integrates comprehensive protection features including overcurrent, thermal shutdown, and undervoltage lockout. Packaged in a 20-pin SOIC (PDSO20) housing, it is designed for high-efficiency power conversion in space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-down architecture for enhanced efficiency
• Fixed 200kHz switching frequency minimizes external component size
• Integrated current-mode control for stable loop performance
• Built-in thermal and overcurrent protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Power supplies for industrial equipment
• Battery-powered portable devices requiring efficient conversion
• Telecommunications infrastructure power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'BWM' against the manufacturer's latest datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the RoHS compliance status and lead time requirements with authorized distributors prior to finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output at up to 2.5A is required with minimal external passive components. The fixed 200kHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the 20-pin SOIC package constraints for PCB layout and thermal management capabilities during the design phase.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MIC2178 family of synchronous buck regulators. It shares architectural similarities with other variants in the series but is distinguished by its fixed 3.3V output voltage and 2.5A current rating. The family generally targets applications needing efficient, compact power solutions with integrated protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public documentation indicates that the MIC2178-3.3BWM may be replaced by the MIC2178-3.3YWM. Verify pinout and electrical parameter equivalence before substitution.