Texas Instruments

LM5118MH/NOPB  

DC DC Switching Controllers

LM5118MH/NOPB Description

The LM5118MH/NOPB from Texas Instruments is a high-performance buck/boost switching controller designed for demanding DC-DC power conversion applications. Housed in a compact 20-pin TSSOP package, this IC delivers robust control for positive output configurations with a wide input voltage range of 3V to 75V, making it suitable for industrial, automotive, and telecom systems. It operates at switching frequencies of 200kHz or 515kHz, allowing flexibility in design trade-offs between efficiency and component size. The device supports synchronous clock synchronization and features advanced control functions such as enable, frequency control, ramp adjustment, and soft start, ensuring reliable and efficient power management.

LM5118MH/NOPB Features

• Wide Input Voltage Range (3V–75V): Supports diverse power sources, including batteries and high-voltage rails.
• Adjustable Switching Frequency (200kHz/515kHz): Optimizes efficiency and reduces external component size.
• Advanced Control Features: Includes enable, frequency control, ramp adjustment, and soft start for precise power management.
• Clock Synchronization: Allows synchronization with external clocks to minimize noise in multi-converter systems.
• High Duty Cycle (80% Max): Enhances performance in step-down/step-up topologies.
• Robust Packaging: 20-pin TSSOP with MSL1 (Unlimited) moisture sensitivity, ensuring reliability in harsh environments.
• Compliance: ROHS3 and REACH compliant, meeting global environmental standards.

LM5118MH/NOPB Applications

• Industrial Power Systems: Ideal for factory automation, PLCs, and motor drives requiring wide input ranges.
• Automotive Electronics: Suitable for infotainment, ADAS, and 12V/24V battery systems due to its high-voltage tolerance.
• Telecom Infrastructure: Powers base stations and networking equipment with efficient step-down/step-up conversion.
• Renewable Energy: Used in solar MPPT controllers and battery management systems (BMS).
• LED Drivers: Provides stable voltage conversion for high-power LED lighting applications.

Conclusion of LM5118MH/NOPB

The LM5118MH/NOPB stands out as a versatile and reliable buck/boost controller, offering wide input flexibility, advanced control features, and high efficiency. Its ability to synchronize with external clocks and support high-duty-cycle operation makes it superior to basic PWM controllers. With applications spanning industrial, automotive, telecom, and renewable energy, this IC is an excellent choice for engineers seeking a robust, high-performance power management solution. Texas Instruments' reputation for quality further ensures its suitability for mission-critical designs.

LM5118MH/NOPB Documents

Download datasheets and manufacturer documentation for LM5118MH/NOPB

Datasheets :

LM5118 Datasheet      

Reference Design Library :

LM5118EVAL: 12V @ 3A, 5 ~ 75 Vin      

Design Resources :

LM5118 Design with WEBENCH® Power Designer      

HTML Datasheet :

LM5118 Datasheet      

PCN Design/Specification :

LM5118-LM25118 14/Jul/2017       Copper Wire Base Metal 29/Sep/2014