ADP7105ARDZ-1.8

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The ADP7105ARDZ-1.8 is an advanced, low-quiescent current, low-noise, three-channel linear regulator. It offers high-efficiency voltage regulation and combines high-voltage support (up to 5.5V) with a low dropout voltage of 1.8V to yield low-power consumption. This part also eliminates the need for two or more linear regulators by providing adjustable output voltages and wide input voltages, making it suitable for many applications. Its array of 5-35V input voltage range, two selectable voltage outputs, and a variable output voltage option provide design flexibility. In this application field, the ADP7105ARDZ-1.8 will be used as a voltage regulator for systems with a high current load.

The ADP7105ARDZ-1.8 works on the principle of linear voltage regulation. This method involves controlling the amount of current supplied to the load by continuously adjusting the output voltage in proportion to the input voltage. This is done by allowing the current control circuit to respond to variations in the output current and making correspondingly adjustments to the regulating transistor’s base voltage. This way, the voltage of the output is kept nearly constant regardless of the load or input voltage variations.

The ADP7105ARDZ-1.8 is ideal for system designs requiring moderate output current, small size, and excellent accuracy and stability. This part provides two selectable output voltages (1.8V and 3.3V) and a variable output voltage setting as well as an adjustable under-voltage lockout feature. In addition, the ADP7105ARDZ-1.8 includes onboard current limiting, over-temperature protection, and a low-voltage dropout of only 1.8V. This feature ensures system operation even when switching between battery backup and normal voltage sources.

The ADP7105ARDZ-1.8 is designed for applications such as networking systems, optical cards, cell phones, LEDs, and other low power/low voltage systems. It is also suitable for use in automotive, mobility, and industrial markets. This device limits the output current and helps protect from short circuits and thermal runaway, ensuring reliable power delivery to the system. The device offers low quiescent current and low dropout voltage, making it an ideal solution for low power applications.

In summary, the ADP7105ARDZ-1.8 offers excellent performance and flexibility, making it suitable for a wide range of applications. Designed for efficient and reliable voltage regulation, it features precise settings for various output voltages, low-noise operation, and precise current limiting. By providing high-voltage support, adjustable output voltages, and the ability to handle wide input voltage ranges, this linear regulator is perfect for many applications, from low-power to high-voltage systems.

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