AP1117KL-13

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AP1117KL-13 is a linear voltage regulator, which belongs the power management integrated circuit (PMIC) voltage regulator class, that is used to regulate and stabilize low-voltage DC operations. This voltage regulator is a viable solution for various devices such as smartphones, notebooks, medical equipment and any other devices that requires low-voltage. AP1117KL-13 offers a highly accurate voltage regulation at 16-Vin range, with a maximum 3% output voltage tolerance and a mere 4 μV/°C temperature coefficient. It is also able to provide a total maximum output current of 1.5 A.

AP1117KL-13, technically referred to as a linear regulator, uses a constant current source control series regulator topology to attain the regulation. It offers an input filter (C1) to achieve a regulation with higher noise immunity, and there is also an output filter capacitor (C2) that helps limit the output voltage ripple.

This is done by using a feedback network, a temperature-compensated band-gap reference and a current source control series regulator. The reference voltage is compared to the feedback voltage and the compared voltage difference is amplified by the error amplifier. The amplified error signal is thus made as the control voltage for the output current.

The output current is determined by a constant current generator connected in series with the pass element and the output filter capacitor. The filter capacitor is also connected in series with the load to avoid large errors caused by output capacitance variation. In order to avoid device over temperature, the internal thermal shutdown circuit will disable the output when die temperature reaches 170°C.

AP1117KL-13 linear voltage regulator is designed to maintain a stable voltage for low-voltage applications. It can regulate the output voltage accuracy within 3%, and maintain a temperature coefficient of 4 μV/℃. It can also supply a continuous output current of 1.5A and offers integrated protection against circuit overload, short-circuit and over temperature. Therefore, AP1117KL-13 linear voltage regulator is an ideal solution to provide stable and accurate voltage to various low-voltage applications.

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