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首页> 外文期刊>Journal of Low Power Electronics >An On-Board Step-Down DC/DC Converter for System-On-Chip Power-Supply Strategy
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An On-Board Step-Down DC/DC Converter for System-On-Chip Power-Supply Strategy

机译：板载降压DC / DC转换器，用于片上系统电源策略

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摘要

Battery-powered mobile systems face new challenges in term of power delivery and management strategy. Multiple power management circuits are now replaced by only one or two voltage level delivery as system-on-chips embed more and more power domains from a unique voltage supply. Board carrying SoCs are required to deliver this voltage supply with the highest possible efficiency over a wide load range, tremendous transient performances and the smallest footprint. A companion voltage regulator is proposed to supply the ever-demanding SoCs at the best trade-off between the latter antagonist requirements. Sliding-mode control enables transient performances at medium switching frequency operation. EMI stringent specifications are served by an analogue assist circuit that synchronizes the switching frequency. The design of the DC/DC voltage regulator is detailed and experimental measurement are discussed.
机译：电池供电的移动系统在供电和管理策略方面面临新的挑战。现在，由于片上系统通过独特的电压源嵌入了越来越多的电源域，因此多个电源管理电路仅由一个或两个电压电平传送所取代。需要板载SoC的电源供应器才能在宽负载范围内以尽可能高的效率，出色的瞬态性能和最小的占位面积提供这种电源。提出了一种配套的稳压器，以在后者的对立要求之间取得最佳折衷，从而提供不断增长的SoC。滑模控制可在中等开关频率下实现瞬态性能。 EMI严格规范由同步开关频率的模拟辅助电路提供。详细介绍了DC / DC稳压器的设计并讨论了实验测量。

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