REF2125IDBVR Integrated Circuits (ICs)

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A voltage reference (REF2125IDBVR) is an integrated circuit (IC) that outputs a reference voltage that can be used as a comparison point for other voltages. It is widely used in power management integrated circuits (PMICs) as a voltage reference in order to regulate and maintain a precise voltage level. The REF2125IDBVR application field and working principle can be explained as follows.

REF2125IDBVR Application Field

The REF2125IDBVR is usually used to provide a stable reference voltage for PMICs or other integrated circuits, ensuring that the output voltage remains regulated and at the desired level. It features a wide input range of 0.25V to 5V and can provide a fixed output voltage of 1.250V or 1.250V + 3%.

This IC is ideal for regulating voltage in applications requiring low-noise precision voltage sources such as instrumentation, test equipment, and industrial control systems. It can also be used in UPS systems and switching power supplies to ensure reliable system operation.

REF2125IDBVR Working Principle

The REF2125IDBVR works basically by using an internal Zener diode connected to a transistor and some circuitry to provide a reference voltage. The integrated circuit takes in an input voltage, and compares it to the reference voltage in order to regulate and maintain the desired output voltage level.

The reference voltage is formed by the voltage drop across the Zener diode. The Zener diode is connected to a transistor, which acts as an active element to ensure the reference voltage is maintained even under changing load conditions. The input voltage is regulated by adjusting the current flowing through the Zener diode and the transistor, thus ensuring the output voltage remains constant.

Conclusion

The REF2125IDBVR is an ideal IC for PMICs and other integrated circuits due to its wide input voltage range, low-noise operation, and precise output voltage. By using an internal Zener diode and transistor, it is able to provide a stable reference voltage for regulating and maintaining the desired output voltage, thus ensuring reliable system operation.

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