Richtek

RT8243AZQW  

Special Purpose Regulators

The Richtek RT8243AZQW is a highly integrated, high-efficiency, synchronous step-down (buck) regulator designed for a wide range of applications. It offers a compact solution for power conversion with high efficiency and low external component count.

Description:

The RT8243AZQW is a synchronous step-down regulator that can operate from an input voltage range of 4V to 23V. It has a wide output voltage range of 0.9V to 12V and can deliver a continuous output current of up to 3A. The device is available in a compact QFN-16 (3x3mm) package.

Features:

1. High Efficiency: The RT8243AZQW offers high efficiency up to 93%, which helps reduce power dissipation and improve overall system performance.
2. Synchronous Rectification: The device uses synchronous rectification, which improves efficiency and reduces component count.
3. Wide Input Voltage Range: The regulator can operate from an input voltage range of 4V to 23V, making it suitable for a wide range of applications.
4. Wide Output Voltage Range: The output voltage can be adjusted from 0.9V to 12V, providing flexibility for different applications.
5. Programmable Soft Start: The soft start function can be programmed to reduce inrush current and minimize output voltage overshoot during startup.
6. Over-Current Protection (OCP): The device provides over-current protection to prevent damage to the output in case of overload conditions.
7. Over-Temperature Protection (OTP): The regulator has an over-temperature protection feature that limits the temperature of the device to prevent overheating.
8. Low External Component Count: The RT8243AZQW requires a minimal number of external components, which simplifies the design and reduces overall system cost.

Applications:

1. Portable Devices: The RT8243AZQW is suitable for powering portable devices such as smartphones, tablets, and wearable electronics.
2. IoT Devices: The compact size and low power consumption make it ideal for IoT devices, smart home appliances, and wireless communication modules.
3. Industrial Applications: The device can be used in industrial applications where a wide input voltage range and high efficiency are required, such as in control systems and sensor networks.
4. Consumer Electronics: The RT8243AZQW can be used in various consumer electronics, including audio equipment, gaming consoles, and televisions.
5. Medical Devices: The regulator's high efficiency and low external component count make it suitable for battery-powered medical devices, such as portable monitoring equipment and wearable health monitors.

In summary, the Richtek RT8243AZQW is a versatile, high-efficiency synchronous step-down regulator that offers a wide input voltage range, programmable soft start, and built-in protection features. Its compact size and low external component count make it suitable for a wide range of applications, from portable devices to industrial and medical equipment.

RT8243AZQW Documents

Download datasheets and manufacturer documentation for RT8243AZQW

Datasheets :

RT8243A/RT8243B/RT8243C      

HTML Datasheet :

RT8243A,B,C      

Environmental Information :

Richtek REACH       RoHS Declaration