ZHCSHN3D February 2018 – August 2019 TPS7A05
For this design example, the 1.0-V, fixed-version TPS7A0510 device is selected. A single CR2032 coin-cell battery was used, thus a 1.0-µF input capacitor is recommended to minimize transient currents drawn from the battery. A 1.0-µF output capacitor is also recommended for excellent load transient response. The dropout voltage (VDO) is kept within the TPS7A05 dropout voltage specification for the 1.0-V output voltage option to keep the device in regulation under all load and temperature conditions for this design. The very small ground current consumed by the regulator shown in Figure 54 allows for long battery life.