The LM5085SDX/NOPB is a high-performance, PWM controller designed by Texas Instruments, tailored for use in compact and efficient power supply solutions. This versatile controller is suitable for a wide range of applications, particularly in the area of step-down (buck) converters where space and power efficiency are critical.

Key Features

• Voltage Range: The LM5085 operates from a wide input voltage range of 4.5V to 75V, making it ideal for automotive, industrial, and telecommunication systems that require a broad operating voltage spectrum.
• High Efficiency: With its constant on-time (COT) control scheme, the device offers excellent transient response, reducing the need for large output capacitors and thereby saving on board space and cost.
• Adjustable Switching Frequency: The switching frequency is programmable from 50 kHz to 1 MHz, allowing designers to optimize the size of the inductor and capacitors for their specific application needs.
• Robust Protection Features: The LM5085 includes a cycle-by-cycle current limit, thermal shutdown, and undervoltage lockout (UVLO), ensuring reliable operation under adverse conditions.
• No-Schottky Bootstrap Diode Required: The device integrates a high-voltage gate driver with a bootstrap diode, simplifying the design and reducing external component count.

Applications

The LM5085SDX/NOPB's robust feature set is suitable for a variety of applications, including but not limited to:

• Automotive power systems
• Industrial power supplies
• Telecommunication equipment
• Point of load conversions

Package and Availability

The LM5085SDX/NOPB comes in a compact, environmentally friendly LLP-8 package, which is RoHS compliant and lead-free. This package is designed to optimize the thermal performance and minimize the footprint on the PCB. The device is available for order with an NOPB (No Lead (Pb)) suffix, indicating it is free of lead and compliant with RoHS regulations, making it suitable for use in a wide range of international markets and applications where environmental standards are a concern.

For more detailed information, including datasheets, technical documents, and support tools, visit the Texas Instruments official website or contact your local TI distributor.