SPX3819S-L-3-3

SPX3819S-L-3-3 Application field and Working Principle

The SPX3819S-L-3-3 is a highly efficient, low power linear voltage regulator. It is mainly used as a switching power regulator and is applicable in a wide range of applications, such as in automotive and industrial applications. It has a high power efficiency and is capable of providing regulated output voltages ranging from 3.3V to 24V.

Features

• Wide Input Voltage Range: 1.65V to 40V
• High Output Voltage Accuracy: ±30mV
• High Power Efficiency: up to 90%
• Low Dropout Voltage: 0.38V
• Very Low Quiescent Current: 7µA
• Internal Short-Circuit Current Limiting
• Thermal Shutdown Protection

The SPX3819S-L-3-3 has many advantages over other linear voltage regulators and can be used to improve system performance since it is highly efficient and compact. Additionally, it is simple to use and is highly cost efficient.

Application Field

The SPX3819S-L-3-3 is applicable in a wide range of applications, including automotive, consumer, and industrial applications. Some of its most popular applications include DC motors, lighting systems, high-end audio systems, power management systems, consumer electronics, and power converters. In automotive applications, it is used to regulate the on-board voltage, while in consumer and industrial applications, it is used to regulate power in batteries and other power supplies.

Working Principle

The SPX3819S-L-3-3 is a linear voltage regulator, which means that it uses a resistor network to reduce the input voltage to provide a regulated output voltage. The input voltage is compared to a reference voltage generated by the regulator. If the input voltage is greater than the reference voltage, the output voltage is reduced, and if the input voltage is lower than the reference voltage, the output voltage is increased. This process is continuous and ensures that the output voltage remains as close as possible to the reference voltage. The reference voltage can be set externally, allowing the regulator to be adjusted to provide the desired output voltage.

The SPX3819S-L-3-3 is equipped with a short-circuit current limiting feature, thermal shutdown protection and a very low quiescent current. These features help to protect the regulators from damage and preserve system reliability. Additionally, the regulators have high power efficiency and are capable of providing very low output voltages.

Conclusion

The SPX3819S-L-3-3 is a highly efficient, low power linear voltage regulator. It is applicable in a wide range of applications, such as in automotive and industrial applications. It is equipped with a variety of features, including short-circuit current limiting, thermal shutdown protection and a very low quiescent current. Additionally, it is simple to use and highly cost efficient, making it an excellent choice for a number of applications.