Introduction

ASP1211-A80ZT is a special purpose voltage regulator designed for repetitive high frequency applications. It is a 3.3 to 5.5V input device with some variants that works up to 7 V. The device is designed with an internal overvoltage protection as well as an input to output isolation of 2000 VDC. It also supports output current up to 20 mA. The switching frequency of the device is adjustable and can be configured to work even up to 100 kHz.

Design & Construction

The ASP1211-A80ZT is a fixed frequency buck regulator and is constructed using a PWM controller chip and a MOSFET. The PWM controller controls the power output according to the input voltage to maintain a stable output voltage. The MOSFET is used to switch the power from the input to the output. The device also includes an overvoltage protection circuit, a short circuit protection circuit and a current limit circuit. The ASP1211-A80ZT can be configured to operate in either burst mode or continuous mode.

Application

The ASP1211-A80ZT is used in high frequency applications such as PC servers and laptops. It can also be used in automotive applications such as automotive chargers, electronic fuel injection systems and LED lighting systems. It can be used in a wide range of applications because of its adjustable switching frequency, wide input voltage range and advanced protection features.

Working Principles

The working principle of the device is simple and revolves around a switching architecture. The integrated PWM controller switches the high side MOSFET according to the input voltage to maintain the output voltage. This switching frequency can be adjusted according to the application requirements. The overvoltage protection circuit, the short circuit protection circuit and the current limit circuit all work together to provide a safe and efficient operation of the system.

Conclusion

The ASP1211-A80ZT is a special purpose voltage regulator designed for repetitive high frequency applications. It is a 3.3 to 5.5V input device with some variants that can work up to 7V. The device is designed with an internal overvoltage protection as well as an input to output isolation up to 2000 VDC. It also supports an output current up to 20 mA. The switching frequency of the device is adjustable and hence can be configured according to the application. It is used in wide range of applications such as PC servers, LED lighting systems and automotive electronics. The working principle of the device is based on a switching architecture with an integrated PWM controller, MOSFET and protection circuit.