RT8297AZQW

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RT8297AZQW is a DC to DC switching regulator designed for general purpose power conversion applications. It implements a fixed frequency current mode architecture, which is easy to use and provides excellent load and line regulation and fast transient response. The device features an internal fixed frequency operation and a programmable operating frequency selection up to 500kHz, making it suitable for a wide range of applications operating up to 500kHz.

RT8297AZQW is best suited for applications such as cell phone, networking and digital consumer products where high step-up/step-down converters with low output current and EMI noise filtering, is required. The device integrates a 100mΩ low RDS(ON) P-channel MOSFET, which provides a high efficiency, small solution size and low input current ripple.

The key components that make up the RT8297AZQW are: output voltage reference, oscillator, error amplifier, compensation network and MOSFET driver. The output voltage is feedback via a resistive divider to the error amplifier, which compares the voltage to the voltage reference and adjusts the duty cycle accordingly. The duty cycle is applied to the gate of a P-channel MOSFET which then connects to the switching node and output capacitor. The efficient operation of the driver and its robust design creates a fast transient response and improved circuit stability.

RT8297AZQW is targeted to high efficiency DC/DC applications. It has wide input voltage range, best suited for battery powered devices and fast transient response, which makes it suitable for motherboards and power supplies in server, workstation and desktop computers. This product also features limited output current options, automatic output turn-off when input voltage falls below regulation level and power saving mode.

In summary, the RT8297AZQW is a versatile DC-DC switching regulator, which can be used to generate a wide range of output voltages. It integrates several useful features such as low current input ripple and fast transient response, which make it suitable for a wide range of applications. This device is best suited for applications where low output current, small solution size and high level of EMI filtering is desirable.

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