High-efficiency PFET buck controller simplifies advanced power management solutions

14-06-2024 | WIN SOURCE | Power

WIN SOURCE now offers the Texas Instruments LM3485MMX/NOPB PFET buck controller, which stands out as a versatile and highly efficient device designed to meet the demands of various power management applications. This component offers developers and designers unparalleled performance and flexibility.

Its hysteretic control architecture is at the core of the device's functionality, which ensures efficient operation without the need for complex control-loop compensation. This architecture simplifies the design process, allowing for the easy development of small, low-cost, switching buck regulators suited for various applications.

The device operates over a wide input range of 4.5V to 35V, delivering flexibility for various power sources. It supports an adjustable output range from 1.242V to VIN, providing customisation to meet specific requirements. With efficiency reaching up to 93%, it ensures minimal energy loss, making it an excellent choice for applications where power efficiency is crucial.

One of the device's key features is its 100% duty cycle operation, which allows ultralow dropout performance. This is particularly beneficial in scenarios where maintaining the output voltage close to the input voltage is crucial. Also, the device delivers robust current limit protection by measuring the voltage across the PFET's RDS(ON), eradicating the necessity for an external sense resistor.

The device excels in various applications, including set-top boxes, DSL or cable modems, PC/IA, auto PCs, TFT monitors, battery-powered portable applications, distributed power systems, and always-on power solutions. Its built-in ADC and various communication interfaces, such as the SPI and SCI, facilitate intricate data exchanges and integration capabilities essential for today's interconnected devices.

The onboard Flash and RAM highlight the device's ability to manage complex software applications and data processing tasks. Moreover, the device is crafted for adaptability, allowing developers to customise memory and functionality according to their project's unique demands.

The device's rich array of features positions it as a formidable foundation for embedded systems across various sectors, including automotive, industrial control, consumer electronics, and IoT devices. Its blend of performance, energy efficiency, and scalability makes it pivotal in advancing buck controller technology, offering developers the essential tools to innovate and expand their applications within a dynamically evolving technological landscape.


By Seb Springall

Seb Springall is a seasoned editor at Electropages, specialising in the product news sections. With a keen eye for the latest advancements in the tech industry, Seb curates and oversees content that highlights cutting-edge technologies and market trends.