MAX5003EEE+G39

Overview

The MAX5003EEE+ is a high-voltage PWM power-supply controller manufactured by Analog Devices Inc./Maxim Integrated. It supports Flyback and Forward topologies for isolated power supply designs. The device operates with a fixed switching frequency of 300 kHz and features a maximum duty cycle of 75%. It provides one output configured as a transistor driver, suitable for positive voltage regulation. The unit is housed in a 16-QSOP surface-mount package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports Flyback and Forward converter topologies for isolated applications
• Integrates a fixed 300 kHz switching frequency for compact magnetic design
• Includes internal soft-start functionality to limit inrush current

Applications

• Internal Bus Architecture (IBA) power supplies
• Telecommunications datacom equipment
• Ethernet systems distributing DC power with data

Procurement Notes

Verify the exact suffix designation against the manufacturer's official documentation, as standard listings typically reference MAX5003EEE+. Confirm RoHS compliance status and check for product discontinuance notices or obsolescence alerts prior to procurement planning. Ensure the specific ordering code matches the required package and temperature grade.

Selection Notes

Select this component for designs requiring high-voltage input handling with integrated PWM control. The fixed 300 kHz frequency simplifies transformer selection compared to variable-frequency controllers. Verify that the 16-QSOP package dimensions fit the target PCB layout constraints and that the -40°C to +85°C industrial temperature range meets the environmental requirements.

Part Context

This part belongs to the MAX5003 series of high-voltage switching controllers designed for robust performance in demanding power conversion environments. The series is commonly utilized in telecommunications infrastructure where reliable isolated power generation is critical. The EEE+ variant specifically denotes the commercial/industrial temperature grade and lead-free packaging configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official replacement guide or contact technical support directly for validated cross-reference information.