关键词: DC-DC converter, low load currents, boost converter, Schmitt-trigger NAND gate
Abstract: This design note shows how a boost converter is designed from a quad Schmitt-trigger NAND gate and the MAX921, a comparator with integrated voltage reference. Consuming only microwatts of power, this 5V-to-15V boost converter provides low load currents with high efficiency. The efficiency is > 90% for load currents between 1mA and 8mA.
Boost Converter Has High Efficiency at Light Loads.pdf 
STM32
MCU
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