概览
设计资源
描述
The MAXREFDES1258 is a 1200W, 12V, 4-phase DC-DC buck converter that delivers up to 100A load current. The design is optimized for data-center applications with an input voltage range of 35V to 60V. It is also suitable for industrial, automotive and communication applications. The MAXREFDES1258 employs a MAX15157B fixed-frequency, current-mode PWM controller that drives power MOSFETs in the buck configuration, allowing the device to operate as a step-down regulator. The control loop uses a valley current-mode architecture to optimize performance with low-duty cycles and provides the shortest on-time possible. The output voltage is set externally through a resistor divider network using the 2V default internal reference. The load current is balanced equally between the two interleaved phases using a state-of-the-art differential current-sense and balancing network.优势和特点
- Wide 35V to 60V input voltage range
- Highly regulated output voltage with ±1% ripple
- State-of-the-art current balancing for dual-phase operation
- Interleaved 180° out-of-phase operation
- Current monitor outputs of individual phases
- Robust fault protection
- Cycle-by-cycle and average overcurrent protection
- Multiple levels of overvoltage protection
重要通知及免责声明
请阅读关于ADI设计信息和资源的参考设计免责声明。
文件和资源
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MAXREFDES1258 Design Files2021/3/16ZIP1 M
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MAXREFDES1258: 1200W DC-DC Buck Converter Using the MAX15157B2021/3/16PDF947 K
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