L78M12CV

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PMIC (Power Management Integrated Circuit) Voltage Regulators Linear are used for harvesting and distributing power to different consumer application devices. The L78M12CV is one type of PMIC Voltage Regulator which is used for low current linear voltage regulation and power conversion applications. This PMIC voltage regulator is based on a CMOS technology and features low power consumption and high efficiency, making it a great choice for applications such as automotive, telecom, internet protocol (IP) network, digital signage, and instrumentation equipment.

The L78M12CV is designed to supply a constant voltage in the range of 8-20V with a load current up to 1A. It integrates a PWM controller with Adjustable Discontinuous Conduction Mode (ADCM). It also has a very low quiescent current of 40uA to deliver low standby power consumption which is critical for battery operated systems. The L78M12CV also has a power good signal output to indicate the regulated output voltage is within a predetermined range.

In terms of its working principle, the adjustable DCM two-phase system of the L78M12CV regulates the output voltage by generating variable width pulses on each phase. The variable PWM control helps to reduce power losses due to the ripple of the inductor cores thus improving the efficiency of the system. The L78M12CV uses an Internal Dynamic Gate Drive Circuit to enhance the gate drive capability of the external MOSFETs by lowering their switching frequencies. This feature further reduces the power dissipation of the power devices at the same time increasing their life time.

The L78M12CV is ideal for applications with high precision power conversion due to its wide output accuracy range and fast transient response which helps to reduce the output voltage fluctuation. The L78M12CV also provides protection from output over-current, over-temperature and over-voltage, this helps to ensure the system and its components are not damaged due to excessive current, voltage or temperature. The thermal shutdown function of the L78M12CV helps to prevent the system from damage due to excessive temperature, it does this by regulating the output until the system reaches a safe temperature range.

In conclusion, the L78M12CV PMIC Voltage Regulator Linear is a great choice for low power regulation and power conversion applications, due to its low power consumption and high efficiency. Its wide output accuracy range, fast transient response, low quiescent current and protection features make it one of the best solutions for powering a variety of consumer application devices such as automotive, telecom, IP network, digital signage and instrumentation equipment.

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