MP44019GS-Z

Overview

The MP44019GS-Z is a CrM/DCM Multi-Mode PFC Controller from Monolithic Power Systems. It operates with a fixed switching frequency of 70 kHz and supports an operating temperature range from -40°C to +125°C. The device features low quiescent current of 25 uA and handles power dissipation up to 1.4 W. It is housed in an SOIC-8 surface-mount package and includes second overvoltage protection capabilities.

Feature Summary

• Implements CrM/DCM multi-mode control for optimized efficiency across varying load conditions
• Integrates second overvoltage protection for enhanced system safety
• Designed for high thermal performance with operation up to +125°C

Applications

• Power factor correction stages in offline power supplies
• AC/DC converter designs requiring boundary mode regulation
• Low to medium power consumer electronics adapters

Procurement Notes

Verify the specific suffix GS-Z against the manufacturer's latest datasheet to confirm pinout and packaging details. Ensure compatibility with your PCB footprint for the SOIC-8 package. Check humidity sensitivity levels if storage or reflow soldering profiles are critical to your manufacturing process.

Selection Notes

Select this component when designing AC/DC converters that require multi-mode PFC control without external compensation complexity. It is suitable for applications needing robust overvoltage protection and wide temperature operation. Consider the 70 kHz switching frequency for EMI management and transformer sizing.

Part Context

This part belongs to the MP44019 series of PMICs focused on power factor correction. It serves as a specialized controller within Monolithic Power Systems' portfolio for offline switch-mode power supplies, distinct from their buck or LDO regulator lines.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.