Microchip MCP19118数控模拟电源解决方案
Microchip公司的MCP19118/19是高度集成的混合信号模拟PWM电流模式控制器,并集成了用于DC/DC降压应用的微控制器核.同步降压器输入电压4.5V-40V,输出电压0.5V-3.6V,开关频率100kHz到1.6MHz.PIC MCU核提供完整的定制化工作参数,起动和关断性能,保护级别和故障处理程序.主要用在标准电源转换,LED驱动器,电池充电等.本文介绍了MCP19118/19同步降压和MCU核的主要特性,框图,微控制器核框图和应用电路,以及MCP19111 评估板主要特性,电路图,材料清单和PCB设计图.
The MCP19118/19 is a highly integrated, mixed signal, analog pulse-width modulation (PWM) current mode controller with an integrated microcontroller core for synchronous DC/DC step-down applications. Since the MCP19118/19 uses traditional analog control circuitry to regulate the output of the DC/DC converter, the integration of the PIC® microcontroller mid-range core is used to provide complete customization of device operating parameters, start-up and shutdown profiles, protection levels and fault handling procedures.
The MCP19118/19 is designed to efficiently operate from a single 4.5V to 40V supply. It features integrated synchronous drivers, bootstrap device, internal linear regulator and 4 kW nonvolatile memory, all in a space-saving 24-pin 4 mm x 4 mm QFN package (MCP19118) or 28-pin 5 mm x 5 mm QFN package (MCP19119).
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