Research on Single Chip Switching DC-DC Switching Power Supply

In this paper, we analyzed the principle and application of a single-chip switching DC-DC switching power supply, and analyzed the working principle of DC-DC using DCDC buck, boost, and buck boost converters as models. Chip selection from multiple aspects such as input voltage, output current, operating frequency, and chip protection characteristics of DC-DC converters was also analyzed. At last, we analyzed the selection and layout of peripheral device parameters for DC-DC chips. This analysis and research are beneficial for improving the selection and use of single chip switching DC-DC switching power supplies.