LM4128CMF-4.1/NOPB Integrated Circuits (ICs)

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Voltage reference or reference voltage is a fixed voltage that provides a baseline for measuring and comparing other voltages. The LM4128CMF-4.1/NOPB is an adjustable voltage reference from Texas Instruments, specifically designed for mobile and battery-powered applications. It is an easy-to-use platform that allows designers to develop battery-powered applications quickly and easily with a minimum of components.

The LM4128CMF-4.1/NOPB is a micropower adjustable voltage reference that is capable of supplying highly accurate, temperature-compensated voltage over a wide current range. The device operates from a single supply between 1.3V and 4.5V, thus eliminating the need for dual supplies, and consuming only 30μA of supply current. It is available in the tiny three-lead SOT-23 package, offering the designer flexibility. The device supports a wide range of loads from 1mA to 10mA.

The working principle of the LM4128CMF-4.1/NOPB is quite simple. The reference voltage is set using an external resistor divider, with the same resistor values being used to set the reference and the output voltage. The reference voltage is buffered by a high-precision voltage-follower amplifier, which ensures that the output voltage is equal to the reference. The device is designed to maintain the output voltage within ±50ppm/V over the entire operating range of 1.3V to 4.5V.

The LM4128CMF-4.1/NOPB is ideal for a variety of applications. It can be used in mobile phones, personal digital assistants (PDAs), cellular radios, and other battery-powered applications where low-voltage accuracy and low-power dissipation are important. The device can also be used in automotive, industrial, appliance, and avionics systems. It is capable of delivering a highly accurate voltage over a broad current range, with a low quiescent current.

The LM4128CMF-4.1/NOPB is a suitable device for applications requiring a low-noise reference voltage for high-impedance loads. It offers a temperature coefficient of temperature of ±50ppm/°C, as well as improved long-term stability over a wide temperature range. This device is suitable for a variety of applications that require an adjustable voltage reference with low power consumption, excellent accuracy, and minimal external components.

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