MAX5043ETN+

Power Management - Specialized Overview

The MAX5043ETN+ is a two-switch isolated PWM power management IC designed for primary-side control in flyback converters. It integrates high-voltage power MOSFETs with an on-resistance of 75mΩ, eliminating the need for external switching devices. The device supports a supply voltage up to 76V and operates within a temperature range of -40°C to 85°C. Packaged in a 56-TQFN (8x8) surface-mount case, it combines power handling and control logic in a single component.

Power Management - Specialized Feature Summary

• Integrates dual high-voltage power MOSFETs with low on-resistance for efficient switching
• Enables primary-side regulation without requiring optocouplers or secondary feedback loops
• Supports isolated flyback converter topologies with simplified design requirements

Power Management - Specialized Applications

• Primary-side controlled flyback power supplies
• Isolated DC-DC conversion systems
• General purpose power management modules

Power Management - Specialized Procurement Notes

Verify the exact manufacturer designation, as sources list both Maxim Integrated and Analog Devices Inc. due to corporate acquisition history. Confirm the package type is 56-TQFN with exposed pad. Ensure the suffix '+' indicates lead-free compliance. Cross-reference the specific datasheet version to confirm electrical characteristics match your design requirements before procurement.

Power Management - Specialized Selection Notes

Select this component when designing isolated flyback converters requiring integrated high-voltage switches. The internal 75mΩ MOSFETs reduce bill of materials by removing external transistors. Verify that the 76V supply limit and operating temperature range suit your application environment. Primary-side control simplifies isolation barriers but requires careful transformer design to maintain regulation accuracy.

Power Management - Specialized Part Context

This part belongs to the Maxim Integrated power management family, now under Analog Devices Inc. It is categorized as a dedicated PMIC for power MOSFET and hot-swap applications. The TQFN-56 package provides thermal dissipation through an exposed pad. It serves as a compact solution for medium-power isolated conversions where space and component count are critical constraints.

Power Management - Specialized Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Consult official Analog Devices resources for direct replacements.