Design of a Low‐Voltage LDO of CMOS Voltage Regulator for Wireless Communications

Summary

In this document, a low‐voltage, low‐dropout (LDO) voltage regulator process is proposed and executed by means of a 0.25‐µm complementary metal–oxide semiconductor (CMOS). This debate of a 3‐ to 5‐V, 50‐mA small CMOS give up a single 1‐pF compensating capacitor in a linear voltage regulator. Tentative outcomes prove that the highest yield load current is 50 mA and the control yield electrical energy is 2.8 V. The controller provides a total weight fleeting reaction by lower than a 5‐mV overshoot in addition to the undershoot. The lively outline part is 358.28 µm × 243.30 µm. Voltage regulators are used to provide a stable power supply voltage independent of load impedance, input voltage variations, temperature, and time. LDO regulators are distinguished by their ability to maintain regulation with small differences between the supply voltage and the load voltage. LDO is used for wireless communications and satellite. In this chapter, the authors discuss how LDO works.