S-T111B20MC-OGFTFU

Current - Output:	150mA
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:	Over Current
Control Features:	Enable
PSRR:	80dB (1kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	1µA
Series:	S-T111
Voltage Dropout (Max):	0.35V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

S-T111B20MC-OGFTFU is a linear voltage regulator from STMicroelectronics’ ST-series product portfolio, representing the most cost-effective solution for supplying large currents up to 3A in a wide range of applications, such as in automotive, consumer, industrial, networking and communications applications. Linear voltage regulators are a type of power management ICs (PMICs) that controls the output voltage of a power supply unit by regulating the input voltage within a certain voltage range. This particular voltage regulator is equipped with an adjustable output voltage, ultra-low voltage drop operation, high power density, and is packaged in an industry standard plastic SMD package that is suitable for automated assembly processes.

Application Field

The S-T111B20MC-OGFTFU is a part of STMicroelectronics’ ST-series product portfolio and is typically used in applications that require a large current with an adjustable output voltage, like consumer electronics, industrial drives, automotive and other power management products. It is widely used in consumer and industrial applications, providing features that are necessary for the operation of motors and other devices. This voltage regulator is also commonly used in networking and communications applications, due to its low power consumption characteristics. Examples of applications that utilize linear regulators such as the S-T111B20MC-OGFTFU include automotive lighting systems, computer peripherals, security cameras, audio equipment, UPS systems, power supplies, and power amplifiers.

Working Principle

The working principle of a linear voltage regulator is based on the principle of using a variable input voltage to make an output voltage stay constant, regardless of the changing load conditions on the output of the regulator. Linear regulators generally rely on a feedback loop to maintain a stable output voltage within a given range. The input voltage is regulated by a controllable element, such as a series transistors, that is then configured to adjust the output voltage. The output voltage of the linear regulator is determined by a number of factors, such as the type of transistor used, the load current, and the temperature. Once these parameters are set, the linear regulator will adjust the input voltage in order to maintain the output voltage at a constant level, regardless of the load current. The linear voltage regulator can also be configured with an overvoltage protection circuit which is used to protect against overvoltage scenarios.

Conclusion

The S-T111B20MC-OGFTFU is a highly efficient linear voltage regulator designed and manufactured by STMicroelectronics. It is a highly effective and cost-efficient solution for power management applications and can be used in a variety of markets, including automotive, consumer, industrial, and networking and communications applications. The voltage regulator features an adjustable output voltage and is equipped with an ultra-low voltage drop operation, high power density, and an industry standard plastic SMD package. The working principle of the regulator is based on the principle of using a variable input voltage to maintain a constant output voltage, regardless of the load.

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