XC9270B085QR-G

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Power management integrated circuits (PMICs) are responsible for efficiently managing and regulating the power provided to electronic circuits, usually from an external power supply. In order to efficiently manage this power, and minimize losses, PMICs may use different switching regulator topologies, such as boost, buck, and buck-boost converters. The XC9270B085QR-G is a PMIC designed for use in DC-DC switching regulator applications, and it is designed for optimal efficiency and minimal power consumption.

The XC9270B085QR-G is an 8-channel synchronous buck regulator, offering up to 100mA-output current per channel and up to 1.2A-output current per channel in parallel with high-side and low-side outputs. It features a voltage range of 0.6-5.5V and operates at 1.2 -6.3V input voltage. It integrates an analog current-mode PWM control and includes an advanced paralleling function, allowing the output of multiple channels to be connected in parallel.

The XC9270B085QR-G features an integrated over-temperature protection (OTP) to prevent the chip from overheating. It also offers a range of functionality to ensure optimal power management and to protect the circuit, including soft-start, internal synchronizing function, a programmable over-temperature protection (OTP) trip point, and cycle-by-cycle current limit.

The XC9270B085QR-G chip is controlled by an integrated PWM pulse generation logic that runs at a programmable frequency of up to 1.2MHz. It also provides programmable switching frequency synchronization, allowing the switching frequency to be adjusted for optimal power efficiency. The chip comes with an integrated internal Reference voltage (VREF) that provides an economical solution for many power management solutions.

The XC9270B085QR-G chip includes integrated fault detection logic to monitor power supply integrity. This includes an under-voltage lockout (UVLO) function to prevent the circuit from running when the input voltage is outside the specified range and a programmable over-voltage protection (OVP) to protect the circuit from over-voltage conditions. Furthermore, the device provides an integrated watchdog timer to detect any potential faults and automatically shut down the system if necessary.

The XC9270B085QR-G device is suitable for applications such as distributed power system (DPS) systems, voltage regulation modules (VRM), and adjustable voltage regulators (AVRs), used in a variety of industries. The device offers a wide input voltage range to provide high power flexibility while maintaining an efficient response in a cost-effective manner. Furthermore, its integrated protection features, fault detection logic and switching frequency synchronization, make it an ideal choice for demanding power management solutions.

In summary, the XC9270B085QR-G is a PMIC designed for DC-DC switching regulator applications. It has an 8-channel synchronous buck regulator with up to 1.2A-output current and a wide input voltage range of 0.6-5.5V. It is suitable for distributed power system (DPS) systems, voltage regulation modules (VRM), and adjustable voltage regulators (AVRs). The chip also features integrated over-temperature protection (OTP), soft-start, internal synchronizing function, programmable over-temperature protection, and cycle-by-cycle current limit, providing a comprehensive power management solution that is reliable, efficient, and cost-effective.

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