ADP7105ARDZ-1.8-R7

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The ADP7105ARDZ-1.8-R7 is a Linear Voltage Regulator from the Power Management Integrated Circuit (PMIC) product line from Analog Devices. This integrated circuit was specifically designed for systems powered by 1.8V or 2.5V single-cell lithium ion batteries where low-noise, high-accuracy, high-power supply current is required. The device offers adjustable, low-noise output voltages from 0.8V to 3.3V, as well as an adjustable voltage enable and power good outputs. This integrated circuit features high efficiency and low power consumption, and its linear regulators feature excellent transient response and low output noise.

The pinout of the ADP7105ARDZ-1.8-R7 is as follows:

• Pin 1: Ground
• Pin 2: Input Voltage (1.8V to 3.3V)
• Pin 3: Output Voltage
• Pin 4: Enable Voltage
• Pin 5: Power Good Output

The basic working principle of the ADP7105ARDZ-1.8-R7 is simple: the input voltage is connected to the positive lead of the integrated circuit and the ground is connected to the negative lead. The voltage is then regulated with the junction between the two leads, where a series of transistors and diodes adjust the output voltage to the desired level.

The ADP7105ARDZ-1.8-R7 has a wide range of possible applications, including cellular phones, personal digital assistants, and notebook computers. This device is also suitable for many other applications where an efficient, low-power, low-noise power supply is required. Some other potential applications include:

• GPS receivers
• Remote radio head units
• Wireless LANs
• Automotive/industrial electronics
• Bluetooth/WiMAX applications
• Portable medical instruments
• Battery-powered devices

The ADP7105ARDZ-1.8-R7 offers a wide operating temperature range of -40 to +125°C for normal operation and -60 to +150°C for storage. It has a low quiescent current of only 25µA and is capable of supplying up to 10mA of output current while maintaining a tight line and load regulation.

The ADP7105ARDZ-1.8-R7 features an adjustable voltage enable pin that can be used to either enable or disable the output voltage. This is particularly useful in battery-powered applications, where it can be used to conserve power while the device is in standby mode. In addition, it features a power good output pin that can be used to indicate when the output voltage is within the desired range.

In summary, the ADP7105ARDZ-1.8-R7 is an ideal choice for applications requiring an efficient, low-noise, low-power, and low-profile linear voltage regulator. It has a wide operating temperature range, low quiescent current, and adjustable voltage enable and power good outputs, making it suitable for many different applications.

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