ADP5080ACBZ-1-RL Integrated Circuits (ICs)

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The ADP5080ACBZ-1-RL is a power management integrated circuit (PMIC) that helps in the management of power supply within a devices. It is a two-channel, low cost, and high performance linear and switchable voltage regulator system. This article covers the application field and working principle of the ADP5080ACBZ-1-RL PMIC.

Application Field

The ADP5080ACBZ-1-RL is designed to meet the needs of portable applications, such as smartphones and tablets, which require high input voltage headroom. The ADP5080ACBZ-1-RL is ideal for these applications because it provides voltage enable/disable features, adjustable output voltage, multiple power supply options, and high accuracy. The ADP5080ACBZ-1-RL also provides an independent power path that eliminates unnecessary power consumption and eliminates the need for multiple power supplies.

The ADP5080ACBZ-1-RL is also suited for use in automotive systems, where the power supply design often requires multiple voltage levels to be distributed among multiple components. The ADP5080ACBZ-1-RL is ideal for this application because it delivers reliable output voltage, low noise, and the ability to dynamically adjust the output voltage in response to system load. The PMIC also provides comprehensive diagnostics, allowing the design engineer to detect and resolve issues quickly.

The ADP5080ACBZ-1-RL is also suitable for use in industrial applications, where it helps reduce the size, cost, complexity, and power consumption of a given design. The integrated PMIC not only delivers consistent power regulation, but also supports hot-swap capability, enabling the supply voltage to remain within a specified range despite changes in the external power source or load conditions.

Working Principle

The ADP5080ACBZ-1-RL PMIC consists of two linear voltage regulators and one buck switch. The PMIC utilizes an internal current-mode, pulse-width modulation (PWM) control loop to regulate the output voltage. The PWM control loop dynamically adjusts the output voltage to maintain a specified level. The PWM control loop also maintains a constant current-mode architecture, which helps reduce power loss.

The PMIC integrates a high-side and a low-side current sensing circuit, as well as an output voltage sensing circuit that monitors the output voltage. These circuits provide the feedback needed by the internal PWM control loop to accurately regulate the output voltage and to protect the device. The PMIC also features integrated short-circuit and over-current protection, as well as thermal sensing that allows it to shutdown the system in the event of an over-temperature condition.

The ADP5080ACBZ-1-RL utilizes an integrated sense resistor to promptly recognize any changes in the load current, and adjust the output voltage appropriately. This helps maintain a consistent output voltage despite changes in the system load. The PMIC also provides integration of an on-demand load switch which helps protect the device from destructive over-current events caused by an imbalance of input supply voltage.

The ADP5080ACBZ-1-RL also features a number of other features and safety features to ensure the safety, reliability, and long-term performance of the device. The device has an adjustable PMBus-compatible power supply programming interface, providing the design engineer with the flexibility to customize the device according to the application needs. The PMIC also features an error signaling capability to enable the system to detect and respond quickly to errors in the power supply, as well as an open channel debugging capability that allows debugging operations to be conducted without affecting the operation of the device.

In summary, the ADP5080ACBZ-1-RL is a two-channel, low cost, and high performance linear and switched voltage regulator system. It is designed to meet the stringent demands of portable applications, such as those found in smartphones and tablets, automotive systems, and industrial applications. The PMIC utilizes an integrated current-mode, pulse-width modulation (PWM) control loop to regulate the output voltage and provide comprehensive diagnostics. The ADP5080ACBZ-1-RL also offers a range of features and safety features to enhance reliability and long-term performance.

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