AP7315-135FS4-7B

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AP7315-135FS4-7B is a high‑efficiency linear voltage regulator with a maximum output of 135 mA. This regulator is capable of providing stable output voltages from 5V up to 24V with a wide range of input voltages. It has a low standby current of 1µA and is available in a range of surface mountable packages.

Application Field

The AP7315-135FS4-7B linear voltage regulator is designed primarily for use in portable and low power applications with small form factor requirements. This part is suited for the regulation of core and analog rails, including 2.5V, 3.3V and 5V rails. It is capable of providing an efficiently regulated output voltage regardless of the changing load conditions. The AP7315-135FS4-7B is well suited for use in small form factor devices such as phones, tablets and digital cameras.

Working Principle

The AP7315-135FS4-7B linear voltage regulator works by using an integrated feedback network to maintain the output voltage at the desired value. This feedback network utilizes an internal voltage reference and an error amplifier to ensure stable output voltage regulation regardless of the load conditions. The voltage reference is set to the fixed desired output voltage and the error amplifier compares the actual output voltage with the output voltage of the voltage reference. If the voltage difference is detected, the regulator will adjust its output current in order to maintain the output voltage at the desired value.

In addition, the AP7315-135FS4-7B is equipped with thermal protection, overload protection and short circuit protection features to ensure both the part and any connected components are not damaged. The thermal protection will reduce the output current in the event that the part gets too hot. The overload protection will limit the output current when the load current exceeds the maximum output current of the regulator. And the short circuit protection mechanism will shut off the output current if the output is shorted.

Conclusion

The AP7315-135FS4-7B linear voltage regulator is a highly efficient and reliable solution for powering a wide variety of low power applications. Its small form factor, low standby current and wide input voltage range make it an ideal choice for mobile and handheld devices. Additionally, the thermal, overload and short circuit protection features ensure the safe operation of the part and prevent any damage to connected components. Therefore, the AP7315-135FS4-7B is a great solution for providing a stable output voltage in a variety of portable and low power applications.

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