L6911C is a step-down converter chip introduced by STMicroelectronics. The chip supports a supply voltage of 5V to 12V, a maximum drive current of 1.3A, and an output voltage that can be adjusted through a 5-bit programmable voltage. The output accuracy is ±1%. The chip also supports soft start and inhibit functions and can be widely used in advanced microprocessor core, distributed power supply and high power DC-DC regulators.