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A 0.18μm CMOS internally-compensated low-dropout voltage regulator | |
CARLOS FELIPE VENTURA ARIZMENDI | |
MARIA TERESA SANZ PASCUAL Belén Teresa Calvo López | |
Acceso Abierto | |
Atribución-NoComercial-SinDerivadas | |
Low-power electronics Linear-regulator Low-dropout | |
The massive proliferation of battery-operated portable devices, such as cellphones, laptops or wireless sensor networks, has made power management one of the IC industry major concerns. In this scenario, low-dropout (LDO) voltage regulators have turned into the preferred choice for low-voltage on-chip power management solutions, because of their fast response, simplicity and low cost of implementation. An LDO is a linear voltage regulator with a common source (or common emitter) output stage, showing improved efficiency over the conventional linear regulators at the cost of higher complexity. These regulators normally require an external capacitor of the order of µF to operate properly, which makes them unsuitable deployment in applications SoC (system on chip). The LDO regulator must supply a constant, noisefree, accurate and load-independent voltage level, with particular DC, AC and transient characteristics, such as load and line regulation, stability and transient response, which will depend on the actual application. A fully-integrated 0.18µm CMOS Low-Dropout (LDO) Voltage Regulator with current mode internal frequency compensation suitable for battery-operated systems, e.g. WSN motes, is presented in this thesis. The regulator provides a maximum output current of 70mA for up to 50pF capacitive load. The regulated output voltage can be chosen to be either 1.2V or 1.8V , with a supply voltage ranging from 3.3V to 2.1V . The simulation results showed that the performance of the proposed LDO regulator is set to the given specifications and even improves some qualities of previously works, such as line regulation (LNR = 0.24mV=V ). | |
Instituto Nacional de Astrofísica, Óptica y Electrónica | |
2014-02 | |
Tesis de maestría | |
Inglés | |
Estudiantes Investigadores Público en general | |
Ventura-Arizmendi C.F. | |
ELECTRÓNICA | |
Versión aceptada | |
acceptedVersion - Versión aceptada | |
Appears in Collections: | Maestría en Electrónica |
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