SG7912AT-DESC

SG7912AT-DESC is a voltage regulation component, which can be classified into PMIC – Voltage Regulators – Linear. It is designed to provide a regulated low dropout output voltage range of 1.5V to 10.5V over a range of input voltage of 3V to 17V with an adjustable output current up to 5A. The component has an internal MOSFET to control the output current and an internal sensing resistor to detect the output voltage.

The component also features built in thermal protection, short circuit protection and adjustable current limiting, making it ideal for use in applications where reliable, robust and efficient regulation is required.

The component also features a low quiescent current of 50uA, ensuring minimal power consumption even when driving a full load, and a low-voltage drop out of 0.35V, making it an ideal solution for applications where efficiency is a concern.

The SG7912AT-DESC is a very versatile component, suitable for various applications including consumer electronics, computer systems, automotive, industrial and communications applications. In consumer electronics applications it can be used to power displays, processors, memory and communications components, providing a robust and efficient power source. In industrial applications, it can be used as a programmable voltage regulator, providing a stable output voltage even under varying input voltages. In communications applications, it can be used as voltage regulators in communication base stations and switching power supplies.

The working principle of the SG7912AT-DESC is simple. It uses an internal MOSFET, which is activated for voltage regulation, based on an internal voltage reference. When the input voltage is higher than the output voltage, the MOSFET is turned on, and the output voltage is regulated by drawing current from the input source. Conversely, when the output voltage is higher than the input voltage, the MOSFET is turned off and the output is regulated by preventing current from flowing from the output to the input.

The component also includes an internal sensing resistor, which detects the output voltage. This is used to regulate the current flow, by turning off the MOSFET when the output voltage reaches the reference voltage, ensuring that the output voltage is maintained.

The component also includes various built-in protection mechanisms, such as thermal protection, short-circuit protection and current limiting, which protect it against over-voltage or over-current conditions.

In summary, the SG7912AT-DESC is a versatile and reliable component, suitable for various applications in consumer electronics, industrial, automotive and communications systems. The component provides an efficient and robust output voltage range of 1.5V to 10.5V over an input voltage range of 3V to 17V with a low dropout voltage and low quiescent current. It also features built-in protection mechanisms and adjustable current limiting, making it ideal for applications where reliable and efficient voltage regulation is desired.