REF3433IDBVR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Reference Type:	Series
Output Type:	Fixed
Voltage - Output (Min/Fixed):	3.3V
Current - Output:	10mA
Tolerance:	±0.05%
Temperature Coefficient:	6ppm/°C
Noise - 0.1Hz to 10Hz:	5µVp-p
Noise - 10Hz to 10kHz:	24µVrms
Voltage - Input:	12V
Current - Supply:	95µA
Mounting Type:	Surface Mount
Package / Case:	SOT-23-6
Supplier Device Package:	SOT-23-6

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What is REF3433IDBVR?

REF3433IDBVR, also known as multiple output reference, is a device developed by Texas Instruments for power management applications. It is an integrated, high-performance voltage reference, designed for high accuracy, low operating current and voltage noise.

Application Field

REF3433IDBVR is specifically designed for many voltage regulation applications such as portable equipment, notebook computer and other battery operated devices. It offers regulated voltage outputs, with high accuracy and low noise. It is low power consumption and can support both single-ended or differential output.REF3433IDBVR can also be used in industrial circuits or other circuits where precise voltage references are needed. Its small size and low power consumption make it ideal for applications that require precision while operating in a battery powered environment.

Working Principle

REF3433IDBVR operates on a band gap principle, meaning that the output voltage is generated by the difference between the output of two transistors (BJTs), one of them (NPN) with an open emitter and the other (PNP) with a shorted collector. When BJTs are forward biased, a voltage difference is created between the emitter and collector. This voltage difference, referred to as the “band gap voltage”, is used to generate the desired output voltage. The output voltage is regulated by a voltage feedback loop with a voltage divider and error amplifier.The REF3433IDBVR features an adjustable output voltage range from 1.235V to 5.5V with a supply voltage range from 2.7V to 5.5V. The reference voltage output is also buffered for noise immunity. The REF3433IDBVR also has a low power consumption of only 350µA.

Conclusion

REF3433IDBVR is an ideal voltage reference device for many applications including mobile and battery operated devices. It offers excellent accuracy, low power consumption and high immunity to noise. The reference voltage output is buffered and adjustable from 1.235V to 5.5V. The device also operates on a band gap principle and is protected against overvoltage and undervoltage conditions.

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