AP1117T18G-U

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The AP1117T18G-U is a 1A low dropout (LDO) voltage regulator. This easy-to-use linear regulator provides excellent line and load regulation with a low dropout voltage performance, which offers superior performance and low power consumption for portable applications.

The AP1117T18G-U is typically used in portable and battery-powered devices such as cellular phones, digital cameras and PDAs, where low quiescent current, fast transient response and excellent line/load regulation are required. It offers an adjustable output voltage range from 1.2V to 15V, with a maximum output current of 1A and a dropout voltage of only 0.17V at 1A.

The AP1117T18G-U is a low power linear regulator with low output noise, fast transient response and high PSRR. It features low operating current, low quiescent current, shutdown current of 0.1uA and excellent thermal performance.

Its working principle is quite simple and straight forward. When the input voltage is within the adjustable range (1.2V - 15V) and output voltage is lower, a higher voltage will be applied to the gate of the power transistor. This higher gate voltage creates a higher current through the gate, changing the gate voltage and allowing the output voltage to rise until it reaches the desired level and remains constant.

The AP1117T18G-U also includes other protection features such as overload protection, short-circuit protection, and thermal shutdown. These protection features ensure that the device will be safe when used in harsh environments, and help maximize its life expectancy.

The AP1117T18G-U can be used in a wide variety of applications, such as point-of-load power for FPGAs and DSPs, industrial monitoring and control, automotive, medical and portable electronics, and any application requiring low power, low noise and excellent line/load regulation.

In summary, the AP1117T18G-U is a simple, easy-to-use linear regulator with excellent line/load regulation, low dropout voltage, low power consumption and low noise. It is a great choice for portable and battery-powered applications, providing reliable and long-term performance.

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