Richtek

RT9181GB

RT9181GB Description

The RT9181GB is a high-performance linear regulator designed by Richtek USA Inc., a leading manufacturer in the power management circuit integrated (PMIC) industry. This regulator is specifically designed to deliver a fixed output voltage of 1.2V with a maximum output current of 150mA. It operates efficiently within an input voltage range up to 5.5V, making it suitable for a variety of low-power applications. The RT9181GB is housed in a compact SOT23-5 package, which is ideal for space-constrained designs and surface mount technology (SMT) applications.

RT9181GB Features

• Output Type: Fixed, ensuring a stable 1.2V output voltage.
• Input Voltage Range: Capable of handling up to 5.5V, providing flexibility in power supply options.
• Output Current: Delivers up to 150mA, sufficient for powering small to medium-sized electronic devices.
• Low Quiescent Current: Features a low quiescent current of 250 µA, which minimizes power consumption during standby or low-load conditions.
• High PSRR: Offers a high power supply rejection ratio (PSRR) of 62dB at 100Hz, ensuring excellent noise filtering and stable output voltage under varying input conditions.
• Control Features: Includes enable and power good signals, allowing for precise control and monitoring of the regulator's operation.
• Protection Features: Equipped with over-current, over-temperature, and under-voltage lockout (UVLO) protections, ensuring robustness and reliability in various operating conditions.
• Compliance and Packaging: The RT9181GB is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is packaged in a tape and reel (TR) format, facilitating efficient manufacturing and assembly processes.

RT9181GB Applications

The RT9181GB is well-suited for a wide range of applications where a stable, low-voltage power supply is required. Its compact size and efficient design make it ideal for:

• Consumer Electronics: Portable devices such as smartphones, tablets, and wearable technology.
• Industrial Applications: Sensor modules, IoT devices, and other low-power industrial electronics.
• Medical Devices: Portable medical equipment and diagnostic tools that require reliable power management.
• Communication Systems: Base stations, routers, and other communication infrastructure components.

Conclusion of RT9181GB

The RT9181GB from Richtek USA Inc. stands out as a reliable and efficient linear regulator, offering a stable 1.2V output with a maximum current of 150mA. Its high PSRR, low quiescent current, and comprehensive protection features make it a robust solution for various low-power applications. The compact SOT23-5 package and surface mount compatibility further enhance its suitability for modern, space-constrained designs. With its compliance to REACH and RoHS3 standards, the RT9181GB environmental ensures sustainability and safety. Overall, the RT9181GB is an excellent choice for engineers and designers seeking a high-performance, reliable power management solution.