AP7315-30W5-7

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AP7315-30W5-7 is a powerful linear voltage regulator, a chip from the renowned APEC Electronics. It is specifically designed for buck design applications and comes with a wide range of features. It includes an adjustable output voltage range from 0.5 to 8.5V, a rated current of up to 500mA, an efficiency of up to 92%, and a 4.0V to 28V operating voltage range. It is ideal for applications such as power supply design, power management, and portable device power conversion.

AP7315-30W5-7 Application Field

Given its high efficiency, wide voltage range, and strong current capability, the AP7315-30W5-7 has a wide range of applications. It is best suited for applications that require a solution with a relatively low ripple, such as personal computers, servers and set-top boxes. It is also suitable for powering embedded computer systems, telecom equipment and other portable devices.

It is also capable of providing super accurate and reliable voltage for microcontrollers and other digital devices, as well as for driving audio amplifiers and LED lights. Apart from these, it is also used for motor drives, such as in digital cameras and camcorders, and in industrial controls such as fire alarms and HVAC systems.

AP7315-30W5-7 Working Principle

The AP7315-30W5-7 operates using a non-isolated buck topology, i.e. the input voltage and the output voltage share the same ground. It uses an internal switching process to transfer power from the input to the output by shorting the input voltage to the ground. The inductor acts as a filter, and the output is regulated by the feedback loop, which measures the output voltage and adjusts the duty cycle accordingly.

The output voltage is controlled by an internal voltage reference, which regulates the duty cycle of the internal switch with the help of an error amplifier. The reference voltage is slightly above the output voltage, and it is adjusted by the output voltage setting resistor. The output current is controlled by limiting the current of the internal switch, and it is regulated by the current limit resistor.

The internal logic of the AP7315-30W5-7 monitors the condition of the output voltage, the input voltage, and the enable/disable pins. It is also capable of providing a system power-good signal and peak current-limit monitoring. It also contains protection features such as over-voltage protection, over-current protection and temperature protection.

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