Infineon IR38063MTRPBF 40A Integrated Voltage Regulator for High-Current Point-of-Load Applications

The relentless push for higher performance and greater efficiency in modern computing, networking, and telecommunications systems demands power delivery solutions that are both compact and capable. Meeting the power requirements of advanced ASICs, FPGAs, and processors often necessitates high-current, point-of-load (POL) converters placed immediately adjacent to their loads. Addressing this critical need, the Infineon IR38063MTRPBF emerges as a premier solution, an integrated voltage regulator that combines high power density with exceptional performance.

This device is a synchronous buck PWM regulator with an integrated MOSFET driver and a host of advanced features. Its most striking specification is its ability to deliver a continuous output current of up to 40 Amperes. This high-current capability makes it ideally suited for powering the most demanding cores in server motherboards, routers, and data storage equipment. By integrating the controller and driver into a single package, Infineon significantly reduces the overall solution footprint compared to discrete implementations, a vital advantage in space-constrained PCB layouts.

Beyond its raw power, the IR38063MTRPBF is engineered for superior precision and control. It features a ±0.5% system accuracy over temperature (-40°C to +125°C), ensuring that sensitive digital loads receive a stable voltage supply under all operating conditions. This precision is critical for maintaining signal integrity and processor stability. The regulator supports a wide input voltage range from 4.5V to 21V, offering design flexibility for use with various intermediate bus architectures.

Key to its high efficiency is the use of Infineon's proprietary OptiMOS technology in its recommended external MOSFETs, which the integrated driver is optimized to control. This combination minimizes switching and conduction losses, leading to exceptional thermal performance and reducing the need for extensive heatsinking. Furthermore, the device includes comprehensive protection features such as Precision Enable, Power Good signal, over-current protection (OCP), over-voltage protection (OVP), and over-temperature protection (OTP), safeguarding both the regulator and the load it powers.

Designing with the IR38063MTRPBF is streamlined thanks to Infineon's Power Navigator software and a suite of application notes, which aid in component selection and loop compensation, accelerating time to market for complex power systems.

ICGOOFind: The Infineon IR38063MTRPBF stands out as a highly integrated, high-performance 40A POL solution. It masterfully balances high power density, exceptional accuracy, and robust protection features, making it an optimal choice for engineers designing power systems for next-generation high-performance electronics.

Keywords: Point-of-Load Converter, High-Current Power Supply, Integrated Voltage Regulator, Synchronous Buck Regulator, Power Management IC.