SQ24T04120-PAC0G

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Introduction

DC DC Converters are an essential component for many applications. One of the more common examples is the SQ24T 04120-PAC 0G, a potted switching voltage regulator. This article will discuss the application field and working principle of the SQ24T 04120-PAC 0G, as well as their advantages and limitations.

Application Field and Working Principle

The SQ24T 04120-PAC 0G is suitable for applications with limited space and low input voltages of up to 24V DC. It is a three-terminal regulator that provides up to 1200mA of output current with tight load and line regulation. Its typical output voltage is 12V, but it is adjustable over a range between 10V and 15V.

The SQ24T 04120-PAC 0G is based on a buck regulator circuit using a P-channel MOSFET for powering the load. The input voltage is stepped down by a voltage divider and compared to the output voltage with an error amplifier, which drives the MOSFET in proportion to the voltage difference. When the output voltage is lower than the desired level, the MOSFET conducts more current, transferring energy from the input source to the output. When the output voltage is higher than the desired level, the MOSFET conducts less current, transferring energy from the output to the input source.

The SQ24T 04120-PAC 0G includes overcurrent protection and over temperature protection to protect both itself and downstream components. It also includes a power-on reset circuit and a power-on sequencing circuit to prevent circuits from being powered up in an undesired order.

Advantages and Limitations

The SQ24T 04120-PAC 0G has several advantages. It is a small and low cost solution, making it suitable for many cost-sensitive applications. It is also very efficient, with a typical efficiency of 97%, allowing it to deliver up to 1200mA of output current from a relatively small package. It also includes integrated protection to protect both itself and downstream components from overcurrent and over temperature conditions.

As with any product, the SQ24T 04120-PAC 0G also has some limitations. It can only provide up to 1200mA of output current, so it may not be suitable for applications requiring higher currents. It also has limited input voltage range, making it unsuitable for applications with higher voltages. Its output voltage range is also fairly limited, so it may not be suitable for applications requiring higher or lower voltages.

Conclusion

The SQ24T 04120-PAC 0G is a potted switching voltage regulator that is suitable for applications with limited space and low input voltages of up to 24V DC. It provides up to 1200mA of output current with tight load and line regulation, and has a typical efficiency of 97%. It also includes integrated protection to protect both itself and downstream components from overcurrent and over temperature conditions. However, it has some limitations, including limited input voltage range, output current and output voltage range.

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