AP7333-20SRG-7

Introduction

The AP7333-20SRG-7 is an advanced 2A low-dropout linear voltage regulator with improved transient response, higher accuracy and lower power consumption. The regulator includes an error amplifier and a P-Channel MOSFET in a TO-263 package that is available in a number of output voltage options. It has been designed to provide a reliable, high efficiency and economical solution for a variety of system applications.

Application Field

The AP7333-20SRG-7 is an optimal choice for a variety of low-voltage applications, including: large/small/portable electronic devices such as cellular phones, tablets, laptops, PCs, wearable electronic devices such as smartwatches, and various industrial products. It is suitable for post-regulator of switching power supply, battery charging and on-card generation applications involving a wide range of input voltages and power levels.

Working Principle

The AP7333-20SRG-7 operates as a linear regulator, which means that it works by converting the incoming voltage to a regulated output voltage with the help of an error amplifier. This is done by comparing the input voltage with the output voltage and correcting the output voltage if it deviates too much from the desired value. The error amplifier controls the MOSFET switch which acts as a current shunt between the input and the output. When the output voltage deviates from the desired level, the error amplifier signals the switch to start conducting, which reduces the potential difference between the output and the input voltage. This causes the input voltage to drop, thus bringing the output voltage back to the desired level.

The regulator also takes advantage of its low-dropout architecture for low-noise operation. This is achieved by utilizing a P-channel MOSFET with a low activation voltage, which helps to prevent the output voltage from dropping too much when the regulator is near output regulation point. This ensures that the output voltage remains within a specified range, allowing consistent regulation at low currents.

The AP7333-20SRG-7 incorporates advanced protection features to protect against overcurrent, overvoltage, and overtemperature conditions, ensuring reliability and safety in the operation of the device. In the event of an overcurrent, the regulator is capable of utilizing current-limiting, so that it can operate without tripping off. In the event of an overvoltage condition, the regulator is able to use a crowbar circuit to limit the voltage across the device, thus protecting it from damage.

The AP7333-20SRG-7 also offers a wide range of output voltage options, ranging from 0.8V to 7.0V. This makes it suitable for a wide range of applications, including battery charging and various power management applications.

Conclusion

The AP7333-20SRG-7 is an advanced 2A low-dropout linear voltage regulator designed to provide a reliable, high efficiency and economical solution for a variety of system applications. Its features include improved transient response, higher accuracy and lower power consumption, as well as protection features to protect against overcurrent, overvoltage, and overtemperature conditions. With a wide range of output voltage options, it is ideal for post-regulator of switching power supply, battery charging, and on-card generation applications.