LM4140ACM-2.5

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The LM4140ACM-2.5 is a low-dropout voltage reference IC, which stands for integrated circuit, typically in the form of a 3-pin package. This IC can be found on power control or power management boards or in power management and voltage reference circuits. The LM4140ACM-2.5 is especially useful when the applications with low power requirement require accuracy and stability of the output voltage. This IC offers a wide range of features, including excellent accuracy and long-term stability of the output voltage.

The LM4140ACM-2.5 is built using advanced CMOS technology to provide a low power consumption and thus extended battery life. It has an output voltage of 2.5V, with an input voltage range of 1.8V to 5.5V. The tolerance of this output voltage is ± 1%, and the temperature coefficient is ≤ 0.01%. The output voltage of the LM4140ACM-2.5 is also highly stable over long periods of time.

The LM4140ACM-2.5 is particularly well-suited to applications such as 1:1 buck or boost converters, digital supplies and battery powered systems. This voltage reference can also be used as a reference source for PWM, analog and digital circuits, audio amplifiers, and low-power circuits, such as transceivers and radios. The wide operating temperature range (-40°C to + 85°C) makes the LM4140ACM-2.5 suitable for use in many industrial, automotive, telecom and consumer applications.

The LM4140ACM-2.5 works by a fixed and adjustable Vref output, regulated by a built-in, temperature-compensated reference voltage. The main components of the IC are a temperature sensing element, a NPN transistor, and an error amplifier. The temperature sensing element is connected to the base of the NPN transistor, and the output voltage is then regulated externally by the error amplifier. The transistor is used as an emitter follower that is controlled by the temperature sensing element. As the temperature of the IC changes, the voltage at the base of the NPN transistor also changes due to the increased resistance at higher temperatures. The error amplifier input then compensates for this change and the output voltage remains stable.

The LM4140ACM-2.5 is a very accurate and highly stable influence for many applications. It is an ideal choice for low-power designs where accuracy and temperate stability is required. It is a robust IC that is able to meet the needs of these applications and has been widely used in many different industries and fields.

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