CSD87352Q5D

Updated: 2026-09-12

Overview

The CSD87352Q5D is a synchronous buck power block that integrates high-side and low-side MOSFETs along with a driver, designed for high-efficiency power conversion. It is widely used in industrial and automotive applications where reliable and efficient power management is critical. The device is known for its compact design and robust performance, making it a popular choice among engineers. The CSD87352Q5D is part of a family of power blocks that prioritize energy efficiency and thermal management. Its integration reduces the need for external components, simplifying PCB design and improving system reliability. This makes it particularly suitable for space-constrained applications.

Structure and Working Principle

The CSD87352Q5D combines a high-side MOSFET, a low-side MOSFET, and a driver in a single package. The high-side MOSFET switches the input voltage to the output, while the low-side MOSFET provides a path for the inductor current during the off-time. The driver ensures precise timing and control of the MOSFETs, optimizing performance. This integration minimizes parasitic inductance and resistance, enhancing efficiency and reducing power losses. The device operates on a pulse-width modulation (PWM) principle, adjusting the duty cycle to regulate the output voltage. Thermal protection features prevent overheating, ensuring long-term reliability.

Key Features

The CSD87352Q5D offers several key features, including high efficiency (up to 95%), low on-resistance, and integrated thermal protection. Its compact design reduces PCB footprint, while the optimized gate drive ensures fast switching and minimal losses. These features make it ideal for high-performance applications. Additionally, the device supports a wide input voltage range, typically from 4.5V to 18V, accommodating various power supply configurations. Its robust construction ensures durability in harsh environments, such as automotive under-the-hood conditions.

Application Areas

The CSD87352Q5D is commonly used in industrial power supplies, automotive systems, and telecommunications equipment. Its high efficiency and reliability make it suitable for applications like motor drives, LED lighting, and battery-powered devices. In automotive systems, the device is often employed in infotainment systems, advanced driver-assistance systems (ADAS), and power distribution modules. Its ability to operate under high temperatures and voltage fluctuations makes it a preferred choice for demanding environments.

Maintenance and Precautions

To ensure optimal performance, the CSD87352Q5D requires proper heat dissipation. Adequate PCB layout and thermal vias are recommended to manage heat effectively. Overvoltage or excessive current should be avoided to prevent damage to the device. Regular inspection of the power block and surrounding components is advised, especially in high-stress applications. Following the manufacturer's guidelines for operating conditions and soldering profiles will help maintain longevity and reliability.

B2B Procurement Guide

When procuring the CSD87352Q5D, consider factors such as current rating, thermal performance, and compatibility with your system. Verify the supplier's authenticity to avoid counterfeit products, and check for compliance with industry standards like AEC-Q100 for automotive applications. Bulk purchasing may offer cost savings, but ensure storage conditions are met to prevent moisture damage. Lead times and availability should also be confirmed, especially for large-scale projects. Prices typically range from $2.50 to $4.00 per unit, depending on quantity and supplier.