ZCC5143：高性能双路同步降压芯片，全面超越LM5143

置顶

精

活动

ZCC5143: A High-Performance Dual Synchronous Buck Controller, Surpassing LM5143!

In modern electronic systems, especially in automotive electronics and high-performance power management, the demand for efficient and reliable buck controllers is growing rapidly. ZCC5143, as a high-performance dual synchronous buck controller, is emerging as a favorite among engineers. Compared to the traditional LM5143, ZCC5143 has achieved significant improvements in several key performance indicators.

Core Advantages of ZCC5143

·                           Ultra-Wide Input Voltage Range: ZCC5143 supports an input voltage range of 3.5V to 65V, making it adaptable to various complex power environments.

·                           High-Precision Output: It offers a high-precision output of ±1%, with options for 3.3V/5V fixed output or adjustable output voltage from 0.6V to 55V.

·                           Extremely Low Quiescent Current: With a quiescent current of only 15µA under no-load conditions and 4µA in shutdown mode, it significantly extends the runtime of battery-powered systems.

·                           Fast Transient Response: Utilizing an interleaved, stackable peak current mode control architecture, it achieves fast transient response and precise current sharing.

·                           Ultra-Short On-Time: A minimum on-time of 65ns and a minimum off-time of 60ns support high step-down ratios, suitable for automotive input voltages of 12V, 24V, or 48V.

·                           High-Efficiency Design: By detecting current through inductor DCR, it achieves ultra-high efficiency and supports high-precision current detection using shunt resistors.

·                           Robust Protection Features: It includes overcurrent protection, undervoltage lockout protection, and hysteresis-based thermal shutdown protection to ensure safe operation under extreme conditions.

·                           Flexible Packaging and Design: Available in a VQFNP6X6-40 package, it supports dual-channel or multi-phase output, ideal for high-current applications.

Comparison of ZCC5143 and LM5143

From the comparison, it is evident that ZCC5143 not only matches LM5143 in key performance indicators but also outperforms it in details such as on-time and off-time, while offering more flexible packaging options.

Applications

ZCC5143 is particularly suitable for the following fields:

·                           Automotive Electronics: It can directly convert from automotive battery input voltage to low-voltage rails, reducing system complexity and cost.

·                           Advanced Driver Assistance Systems (ADAS): Fast transient response and high-precision output ensure stable operation under complex conditions.

·                           Infotainment Systems: Low quiescent current and high-efficiency design extend the runtime of devices.