The RT9167-38CB is a high-performance Low Dropout (LDO) regulator manufactured by Richtek. This regulator is designed to deliver a stable 3.8V output voltage, making it suitable for a variety of applications that require a precise and reliable power source. Its key features include low dropout voltage, low quiescent current, and integrated protection mechanisms.

Applications

• Portable Electronics: Powering microcontrollers, sensors, and other components in smartphones, tablets, and wearable devices.
• Wireless Communication Devices: Providing a stable voltage supply for Bluetooth modules, Wi-Fi modules, and RF transceivers.
• Battery-Powered Systems: Ensuring efficient power management in handheld devices, remote controls, and IoT devices.
• Industrial Control Systems: Supplying power to sensors, actuators, and communication interfaces in industrial automation equipment.
• Medical Devices: Providing a regulated power source for portable medical instruments and monitoring equipment.

Features

• 3.8V Fixed Output Voltage: Delivers a precise and stable 3.8V output.
• Low Dropout Voltage: Maintains regulation even when the input voltage is close to the output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Over-Current Protection (OCP): Protects the regulator and the load from excessive current.
• Over-Temperature Protection (OTP): Shuts down the regulator to prevent thermal damage in case of overheating.
• Short-Circuit Protection (SCP): Protects the regulator from damage due to short circuits at the output.
• Enable/Disable Control: Allows the regulator to be turned on or off externally, reducing power consumption when not needed.
• Compact Package: Available in small surface-mount packages for space-saving designs.

Benefits

• Extended Battery Life: Low quiescent current and high efficiency contribute to longer battery life in portable devices.
• Improved System Reliability: Integrated protection features safeguard the regulator and the connected circuitry from damage.
• Reduced Board Space: Small package size enables compact and densely populated circuit boards.
• Stable Power Supply: Precise output voltage regulation ensures reliable operation of sensitive electronic components.
• Simplified Design: Integrated protection features and enable/disable control simplify the design process and reduce the need for external components.

The RT9167-38CB LDO regulator is designed to provide a stable and efficient 3.8V power supply for various electronic devices. The 3.8V output makes it a suitable choice for certain microcontrollers, sensors, and other components that operate at this voltage level. Its low dropout voltage allows it to function effectively even when the input voltage is only slightly higher than the output voltage, which is particularly useful in battery-powered applications. The integrated protection features enhance the overall reliability of the system by preventing damage due to over-current, over-temperature, and short-circuit conditions.