Texas Instruments

LM5030MMX  

DC DC Switching Controllers

LM5030MMX Description

The LM5030MMX from Texas Instruments is a high-performance DC-DC switching controller designed for isolated and non-isolated power supply applications. This obsolete but robust IC operates with a wide input voltage range of 14V to 90V, making it suitable for industrial, telecom, and automotive systems requiring stable power conversion. It features a transistor driver output with positive, isolation-capable configuration, supporting single-phase operation with two outputs. The controller offers dual switching frequency options (200kHz or 600kHz), enabling flexibility in design trade-offs between efficiency and component size.

LM5030MMX Features

• Wide Input Range (14V–90V): Ideal for high-voltage applications like telecom rectifiers and industrial power systems.
• Dual Frequency Selection (200kHz/600kHz): Optimizes efficiency vs. size trade-offs for different topologies.
• Isolation-Capable Output: Supports transformer-coupled designs for safety-critical applications.
• Control Features: Includes frequency control and soft-start functionality for smooth power-up sequences.
• Compact 10-MSOP Package: Space-efficient surface-mount design, suitable for dense PCB layouts.
• 50% Max Duty Cycle: Ensures balanced power delivery in push-pull or half-bridge configurations.

LM5030MMX Applications

• Telecom Power Supplies: Isolated DC-DC converters for base stations and network equipment.
• Industrial Systems: High-voltage power management in motor drives and automation controllers.
• Automotive Electronics: Auxiliary power modules requiring wide input voltage tolerance.
• Renewable Energy: Intermediate bus converters in solar/wind power systems.

Conclusion of LM5030MMX

Though obsolete, the LM5030MMX remains a reliable choice for engineers designing high-voltage, isolated power supplies. Its wide input range, dual-frequency operation, and isolation capability provide versatility in demanding environments. While newer alternatives exist, its proven performance in telecom and industrial applications ensures continued relevance in legacy systems or designs prioritizing cost-effective solutions. For modern designs, consider TI’s updated offerings with enhanced features like synchronous rectification.

LM5030MMX Documents

Download datasheets and manufacturer documentation for LM5030MMX

Datasheets :

LM5030      

HTML Datasheet :

LM5030