The LM4128AMF-3.3/NOPB is a high-precision voltage reference component manufactured by Texas Instruments. This device offers a fixed 3.3V output with a precision of ±0.1% at 25°C. It is part of the LM4128 series, which is known for its stability and low temperature coefficient, making it an ideal choice for high-performance applications where precise voltage is crucial.

This voltage reference operates with a very low, micropower current draw, which makes it suitable for battery-powered and portable devices. The low dropout voltage and the ability to source up to 20mA of output current enable it to perform well under varying load conditions. Its no-load current specifications are typically 60μA, which further emphasizes its efficiency.

One of the notable features of the LM4128AMF-3.3/NOPB is its low output noise, which is essential for sensitive analog circuits. The device also boasts excellent load and line regulation, contributing to a stable voltage output despite fluctuations in input voltage or attached load. The temperature coefficient is specified as 75ppm/°C, ensuring reliable performance over a wide temperature range.

The NOPB in the product name indicates that this component is lead-free and RoHS compliant, aligning with environmental standards and regulations for electronic devices. The device is offered in a small SOT-23 package, which is ideal for space-constrained applications.

Typical applications for the LM4128AMF-3.3/NOPB include precision data converters, portable instrumentation, and battery-powered devices. It is also used in factory automation and process control, automotive electronics, and healthcare devices, where stable reference voltages are critical for accurate measurements and reliable operation.

For designers and engineers looking for a high-quality, stable, and efficient voltage reference, the LM4128AMF-3.3/NOPB from Texas Instruments stands out as an excellent choice that combines performance with practicality.