ADP121-ACBZ18R7

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Linear Voltage Regulators are one of the most common types of power management integrated circuits (PMICs). These circuits are used to regulate the output voltage from a power source in order to ensure the device utilizing the power source receives the proper amount of power. The ADP121-ACBZ18R7 is one such voltage regulator. This article will discuss the application fields and working principle of the ADP121-ACBZ18R7.

Application Fields

The ADP121-ACBZ18R7 is a low power voltage regulator designed to supply up to 500mA of current while providing a maximum output voltage of 18V. The voltage regulator has a low quiescent current of 2uA and includes several features to prevent overheating and overcurrent. The low power and wide voltage range make it ideal for applications where maximum power but minimal energy loss is a priority. The device is also highly suitable for low-noise, low heat applications such as portable electronics.

The ADP121-ACBZ18R7 has a wide input voltage range between 4V and 18V, making it a good choice for applications such as portable battery-powered devices, automotive systems, industrial electronics, and medical devices. The voltage regulator is designed to withstand operating temperatures between -40 °C and +85 °C and is rated to operate with a maximum output current of 500mA.

Working Principle

The ADP121-ACBZ18R7 is a linear voltage regulator. This type of voltage regulator works by controlling the voltage by regulating the amount of current flowing through a resistor. The resistor is connected to a reference voltage that is supplied to the regulator. The amount of current passing through the resistor determines the amount of power delivered to the load. The regulator will then adjust its output voltage by varying the amount of current passing through the resistor.

The ADP121-ACBZ18R7 uses a P-channel MOSFET to control the current passing through the resistor. The voltage regulator also includes layout-enhanced controlling circuitry and thermal-shutdown functionality. The circuitry allows for optimal device performance and thermal-shutdown functionality prevents the device from overheating and damaging itself.

The ADP121-ACBZ18R7 is designed to provide a stable output voltage regardless of fluctuations in the input voltage. The voltage regulator also provides a low quiescent current of 2uA for improved efficiency. The device is designed to withstand operating temperatures between -40°C and +85°C.

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