Introduction

The S-812C38AUA-C2ST2G is a voltage regulator device manufactured by ROHM Semiconductor. This type of device belongs to the category of PMIC (Power Management Integrated Circuit) and more specifically to the voltage regulators family, and to be more precise the Linear Voltage Regulators.

Application fields

Due to the fact that S-812C38AUA-C2ST2G operates as a linear voltage regulator, this type of device has many applications, such as in applications that require low output noise and high stability, low quiescent current, and low dropout voltage, where a stabilized and regulated voltage is needed in order to maintain the optimal performance of the connected batteries or devices.

Voltage Regulator Applications

The S-812C38AUA-C2ST2G is typically used in AC adapters, battery chargers, heated beds, and motor controllers. Additionally, the device is also suitable for critical applications that require very low current consumption and high accuracy, like Photovoltaic Panel Controllers or Precision Measurement Instruments.

Power Supply Applications

The S-812C38AUA-C2ST2G can also be used in power supply applications. The device can be used to regulate an input voltage from a variety of sources, such as batteries, alternating current (AC), or direct current (DC) into an appropriate output voltage for the connected circuit and device. The device can be used to regulate power from 5V to 40V and it offers low dropout voltage, which makes it ideal for applications that require high efficiency.

Other Applications

The S-812C38AUA-C2ST2G can also be used in other applications, such as automotive, consumer devices, industrial control, and telecommunications. The device has a wide temperature range of –40°C~125°C and is well-suited for automotive and consumer applications with its low power consumption and fast transient recovery time.

Working Principle

The S-812C38AUA-C2ST2G is a linear voltage regulator device, which means that it operates by regulating an input voltage into a regulated output voltage. The device has an adjustable reference voltage and a feedback loop that allows for precise regulation. The reference voltage is set with a resistor divider network, which sets the current level at the error amplifier, which in turn adjusts the output voltage.

The S-812C38AUA-C2ST2G also has a current limiting feature which protects the device from excessive overloads and shorts. Additionally, the device is designed with a high peak current capability, which allows for a fast transient recovery time and smooth output voltage throughout the entire load range.

Conclusion

The S-812C38AUA-C2ST2G is a linear voltage regulator device, which means that it operates by regulating an input voltage into a regulated output voltage. The device is suitable for a wide range of applications, such as voltage regulation, power supply regulation, and automotive and consumer applications. The device also has a wide temperature range of –40°C~125°C and offers low power consumption and fast transient recovery time.