一种用于物联网应用的高轻载效率低纹波电压PFM降压转换器

A very high light-load efficiency low-ripple-voltage pulse-frequency modulation (PFM) buck converter for Internet of Things applications is presented in this article. The PFM buck converter is widely used because of its higher light-load efficiency. However, it has a higher ripple voltage than its pulsewidth modulation counterpart. Although the ripple voltage of a PFM buck converter can be reduced...