Voltage Converters Can Help Improve Battery Power Efficiency (Download)
Battery-operated circuits must be energy-efficient for the battery to last a long time. For this, energy-efficient components are selected and combined into a system. The fewer building blocks in an electrical circuit, the greater the energy efficiency of the overall system.
Figure 1 shows an electrical water meter as an example of a battery-operated device. The system uses a MAX32662 microcontroller with just one supply voltage. The input voltage range lies between 1.71 and 3.63 V.