Overview

Each power supply in the system is generally divided into two types: DCDC (Direct Current) and LDO (Low Dropout Regulator). The overall features of the two power supplies are as follows:

• DCDC: It has the advantages of high efficiency, wide input voltage range, strong driving ability and low static current.
• LDO: It is a linear regulator and can only be used in buck applications, which means the output voltage must be less than the input voltage. It is with the advantages of good stability, fast load response, and small output ripple.