Texas Instruments

LM5033MM  

DC DC Switching Controllers

LM5033MM Description

The LM5033MM from Texas Instruments is a high-performance PWM push-pull DC-DC switching controller designed for demanding power conversion applications. Operating within a wide input voltage range of 15V to 90V, it supports dual switching frequencies (200kHz and 600kHz), making it adaptable to various efficiency and size requirements. This obsolete part remains relevant for legacy designs due to its robust architecture, featuring synchronous rectification and clock synchronization for improved noise immunity and efficiency. Packaged in a 10-pin MSOP (Tape & Reel), it is optimized for surface-mount applications with a Moisture Sensitivity Level (MSL) 1 rating, ensuring reliability in harsh environments.

LM5033MM Features

• Wide Input Range (15V–90V): Suitable for industrial and automotive applications with fluctuating power sources.
• Dual Switching Frequencies (200kHz/600kHz): Enables trade-offs between efficiency and component size.
• Synchronous Rectification: Reduces power losses and improves overall efficiency.
• Clock Synchronization: Allows synchronization with external clocks to minimize EMI in multi-converter systems.
• Control Features: Includes frequency control and soft-start for smooth power-up sequences.
• Two Outputs with Single Phase: Supports push-pull topologies for isolated power supplies.
• REACH Unaffected: Compliant with environmental regulations for global deployment.

LM5033MM Applications

The LM5033MM excels in isolated power supply designs, particularly:

• Telecom/Networking Equipment: Provides stable voltage conversion for line cards and base stations.
• Industrial Power Systems: Ideal for motor drives, PLCs, and factory automation due to its wide input range.
• Automotive Electronics: Supports infotainment and ADAS modules with high-voltage tolerance.
• Aerospace & Defense: Used in ruggedized power systems where reliability is critical.

Conclusion of LM5033MM

Though marked obsolete, the LM5033MM remains a robust choice for engineers requiring a high-voltage, high-efficiency PWM controller with synchronous rectification. Its versatile frequency options, wide input range, and synchronization capabilities make it suitable for legacy and niche applications in industrial, automotive, and telecom sectors. Designers should evaluate alternative TI solutions for new projects while leveraging this IC’s proven performance in existing systems.

LM5033MM Documents

Download datasheets and manufacturer documentation for LM5033MM

Datasheets :

LM5033 Datasheet      

HTML Datasheet :

LM5033 Datasheet