ON Semiconductor NCP3235: High-Efficiency, Integrated Synchronous Buck Regulator

The NCP3235 from ON Semiconductor is a state-of-the-art, high-performance integrated synchronous buck regulator designed to deliver exceptional efficiency and power density. This device is suitable for a wide range of applications, including netcom, servers, data storage systems, and high-power density applications that require a compact, efficient power solution.

With an input voltage range of 4.5V to 18V, the NCP3235 is versatile and well-suited for systems that operate on standard 5V, 12V, or intermediate bus voltages. It is capable of delivering a continuous output current of up to 25A, making it a reliable choice for high-current demands. The output voltage is adjustable from 0.6V to 5.5V, providing flexibility for various low voltage requirements.

The NCP3235 incorporates a range of features to enhance its performance and reliability. It uses a DCR current sensing method for improved efficiency and includes an integrated bootstrap diode for enhanced functionality. The regulator also offers a Power Good flag, enabling system monitoring and sequencing. Additionally, the device is equipped with a full set of protection features such as over-current, over-voltage, under-voltage, and thermal shutdown to ensure robust operation under adverse conditions.

ON Semiconductor's NCP3235 is designed with a proprietary emulated current mode control scheme that provides fast transient response and easy loop stabilization. The regulator operates at a programmable switching frequency up to 1.5MHz, allowing the use of small, low-cost inductors and capacitors, which results in a compact PCB layout and reduced overall solution size.

For enhanced thermal performance, the NCP3235 is offered in a space-saving QFN-35 package, which provides excellent power dissipation and a small footprint on the circuit board. Whether you are designing for efficiency, space-constrained applications, or high-power systems, the NCP3235 from ON Semiconductor is an excellent choice for your synchronous buck regulator needs.