S-812C43BMC-C4XT2U

Current - Output:	65mA
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Short Circuit
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	2.1µA
Current - Quiescent (Iq):	500nA
Series:	S-812C
Voltage Dropout (Max):	0.3V @ 10mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.3V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The S-812C43BMC-C4XT2U is a linear voltage regulator from STMicroelectronics. This voltage regulator offers integrated power management, providing a wide range of power, current and output voltages. Additionally, it allows flexibility with its programmable current limit and thermal monitoring features. The S-812C43BMC-C4XT2U is also capable of providing a high current output, with up to 600mA@3.3V for applications that require high levels of power.

Application Field

The S-812C43BMC-C4XT2U is designed for a wide range of applications, ranging from industrial and consumer electronics, to automotive and medical applications. In industrial applications, it can be used for power system design, such as powering CNC machines and industrial control systems. Its accuracy and wide output range make it an ideal solution for resistor/capacitor networks, voltage-controlled oscillators, DC-to-DC converters, and voltage-controlled amplifiers. Additionally, the S-812C43BMC-C4XT2U can be used for controlling analog circuits in consumer electronics and serve as a reliable power source for medical and automotive applications.

Working Principle

The S-812C43BMC-C4XT2U is a linear voltage regulator, meaning it works by dissipating the difference between its input and output voltage as heat. Its core principle revolves around a control amplifier, which automatically adjusts the current-carrying Mosfet at the output stage. This Mosfet has a low output impedance and is capable of providing current up to 600mA@3.3V. The control amplifier ensures that the output voltage is regulated and maintained at the set point (Programmable Voltage).When the output voltage is higher than the reference voltage, the current-carrying Mosfet is turned on, while reducing the resistance at the output relatively higher. This increases the current flow and dissipates the excess voltage as heat. When the output voltage is lower than the reference voltage, the current-carrying Mosfet is turned off, preventing current from flowing and causing the output voltage to rise. The S-812C43BMC-C4XT2U also features a programmable current limit and over temperature protection, which can help protect sensitive components from high current levels and overheating. This makes it a great choice for applications that require precise control of current and temperature.

Conclusion

The S-812C43BMC-C4XT2U is a linear voltage regulator that is designed for a wide range of applications. With up to 600mA@3.3V of output current, programmable current limit and over temperature protection, it is an ideal choice for industrial, consumer, automotive, and medical applications. Its design revolves around a control amplifier, which automatically adjusts the current-carrying Mosfet at the output stage. As a result, the S-812C43BMC-C4XT2U provides accurate regulation of voltage and current, which is essential for many applications.

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