LM4050CEM3-2.5/NOPB Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LM4050
Supplier Device Package:	SOT-23-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TA)
Current - Cathode:	65µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	41µVrms
Series:	--
Temperature Coefficient:	50ppm/°C
Tolerance:	±0.5%
Current - Output:	15mA
Voltage - Output (Min/Fixed):	2.5V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LM4050CEM3-2.5/NOPB is a precision voltage reference designed for switching and linear regulator control circuits. The voltage reference product from Texas Instruments offers a wide variety of configurations including buffered, non-buffered, and low-dropout designs. By utilizing the LM4050CEM3-2.5/NOPB voltage reference, design engineers can easily provide the optimal fixed-voltage source for their application in order to ensure a highly accurate and reliable voltage reference.

Application Field

The LM4050CEM3-2.5/NOPB is best suited for applications requiring a precise reference voltage. This can include digital-to-analog converters, temperature sensors, batteries, and RF power amplifier applications. The range of input voltage of 3V to 18V, along with an output of 2.5V make this module an excellent choice for a variety of applications. The LM4050CEM3-2.5/NOPB offers high accuracy with a guaranteed temperature coefficient of 15ppm/°C for temperatures between -40°C to +150°C. Additionally, the low quiescent current of this voltage reference at only 5µA is one of its most attractive features. This can make it ideal for battery-powered applications where energy efficiency is a priority. The wide range of current outputs afforded by this voltage reference make it suitable for both large project applications and low-power device use. With a maximum output current of 20 mA, the LM4050CEM3-2.5/NOPB can be used with a wide range of loads and power outputs.

Working Principle

The LM4050CEM3-2.5/NOPB is a CMOS-based voltage reference. It uses a combination of two-stage regulation and precision matched current sources to achieve a high degree of accuracy and stability. A precision-matched current source is used to regulate the output of the reference using two operational amplifiers. The two operational amplifiers achieve a high degree of accuracy by using a differential feedback loop. In order to further ensure the stability and accuracy of the reference voltage, the LM4050CEM3-2.5/NOPB utilizes a bandgap reference structure. This ensures that any fluctuations in the input voltage, including temperature fluctuations, have a minimal effect on the output voltage. Lastly, the device also includes a temperature compensation feature. This allows for increased accuracy when used with temperature-sensitive applications by taking into account any changes in the temperature of the environment.

Conclusion

The LM4050CEM3-2.5/NOPB is an ideal voltage reference for a wide variety of applications, from RF power amplifiers to battery-powered designs. It offers a highly accurate and stable output voltage of 2.5V with a maximum current output of 20 mA. The voltage reference also features a wide range of regulating features, such as precision-matched current sources and an integrated bandgap reference structure, to guarantee reliable operation in a variety of environments. Furthermore, its low quiescent current of 5µA ensures that it is suitable for energy-conscious applications.

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