The IR35409MTRPBF is a synchronous buck regulator from Infineon Technologies, designed for high-performance CPU and GPU core power delivery. It integrates a PWM controller, gate drivers, and power MOSFETs in a single package, offering a compact and efficient solution for voltage regulation. This regulator is optimized for fast transient response and high efficiency, meeting the demanding requirements of modern computing platforms.

Applications:

• CPU core power: Used in desktop and laptop computers to power the CPU core.
• GPU core power: Employed in graphics cards to power the GPU core.
• Server power: Used in server systems to provide power to processors and other critical components.
• Gaming consoles: Found in gaming consoles to power the CPU and GPU.
• High-performance computing: Utilized in high-performance computing applications requiring precise and efficient voltage regulation.

Features:

• Integrated MOSFETs: Includes both high-side and low-side power MOSFETs in a single package.
• PWM controller: Features a high-performance PWM controller for precise voltage regulation.
• Gate drivers: Integrated gate drivers optimize MOSFET switching performance.
• Fast transient response: Designed for fast transient response to meet the dynamic load requirements of CPUs and GPUs.
• Over-current protection (OCP): Protects the regulator and the load from excessive current.

Benefits:

• High efficiency: Integrated MOSFETs and optimized gate drivers contribute to high efficiency.
• Compact design: Single-package solution reduces board space and component count.
• Improved performance: Fast transient response ensures stable voltage regulation under dynamic load conditions.
• Enhanced protection: Over-current protection protects the regulator and the load from damage.
• Simplified design: Integrated solution simplifies power supply design and reduces development time.

Additional Details:

The IR35409MTRPBF supports a wide input voltage range and provides a programmable output voltage. It features a switching frequency of up to 1 MHz and is designed for low output voltage ripple. The integrated MOSFETs are optimized for low on-resistance, minimizing power losses. The regulator also includes thermal shutdown protection to prevent overheating. This device is available in a QFN package and is designed for surface mounting. It is an ideal solution for high-performance power delivery applications where efficiency, size, and transient response are critical.