[原创]Microchip MCP16501 SAMA5DX系列MPU最佳PMIC解决方案

Microchip公司的MCP16501是用于SAMA5DX/SAM9X6/SAMA7G系列MPU的成本和尺寸最佳的电源管理集成电路(PMIC),和Microchip公司的嵌入微处理器单元(EMPU)以及相关的DRAM存储器兼容.所有的降压通路负载电流高达1A,100%占空比.300mA LDO支持敏感的模拟负载.而DDR存储器电压(Buck2输出)和MPU核电压(Buck3输出)由两个3态输入引脚来选择.这种方法在输出电压设定时有更好的精度(±1%),因为不需要外接反馈电阻,同时还减少外接元件.输入电压2.7V-5,5V,降压通路2MHz PWM操作,引脚选择Buck2:输出电压: 1.2V, 1.35V, 1.8V; Buck3输出电压: 1.0V, 1.15V和1.25V.工作温度-40C到 +125C,采用24引脚4 mm x 4 mm VQFN封装.低功耗模式静态电流250 μA,最大关断电流为 6 μA .主要用在高性能MPU电源解决方案和μC/μP, FPGA以及DSP电源.本文介绍了MCP16501主要特性,框图,典型应用电路和评估板MIC28516主要特性,电路描述图和电路图,材料清单和PCB设计图.

The MCP16501 is a cost and size optimized integrated PMIC, compatible with Microchip　s EMPUs (Embedded Microprocessor Units) and associated DRAM Memories.

It is compatible with SAMA5DX, SAM9X6 and SAMA7G MPUs, which are supported by dedicated device variants.

The MCP16501 integrates three DC-DC Buck regulators and one auxiliary LDO, and provides a comprehensive interface to the MPU.

All Buck channels can support loads up to 1A and are 100% duty cycle-capable.

The 300 mA LDO is provided such that sensitive analog loads can be supported...

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