The RT9164-33CGA is a low-dropout (LDO) voltage regulator manufactured by Richtek. It is designed to provide a stable 3.3V output voltage, making it suitable for various applications that require precise and regulated power. This LDO regulator features low dropout voltage, high output accuracy, and excellent transient response, ensuring reliable performance even under demanding conditions. The RT9164-33CGA is an ideal choice for portable devices, microcontrollers, and other applications where a stable voltage supply is critical.

Applications:

• Microcontroller Power Supplies: Providing a stable 3.3V rail for microcontrollers.
• Wireless Communication Modules: Powering Wi-Fi, Bluetooth, and Zigbee modules.
• Sensor Systems: Supplying stable voltage for analog and digital sensors.
• FPGA Power: Providing power to field-programmable gate arrays.
• Portable Devices: Powering various components in battery-operated devices.

Features:

• Fixed 3.3V Output Voltage: Provides a stable and accurate 3.3V supply.
• Low Dropout Voltage: Operates with minimal voltage difference between input and output.
• High Output Accuracy: Ensures precise voltage regulation.
• Excellent Transient Response: Responds quickly to changes in load current.
• Overcurrent Protection: Protects the regulator from excessive current draw.
• Thermal Shutdown Protection: Prevents damage due to overheating.
• Enable/Disable Control: Allows for turning the regulator on and off for power saving.
• Small Package: Compact footprint for space-constrained applications.

Benefits:

• Stable Power Supply: Ensures reliable operation of connected devices.
• Extended Battery Life: Low quiescent current minimizes power consumption.
• Protection Against Damage: Overcurrent and thermal shutdown features protect the regulator and load.
• Improved System Performance: Excellent transient response maintains stable voltage during dynamic load changes.
• Easy Integration: Small package simplifies design and layout.

Additional Details:

The RT9164-33CGA operates with an input voltage typically ranging from 3.5V to 5.5V. The low dropout voltage characteristic of this regulator allows it to maintain a stable 3.3V output even when the input voltage drops close to this level. The device is typically available in a small outline package such as a SOT-23 or similar, making it suitable for applications with limited board space. The inclusion of overcurrent and thermal shutdown protection mechanisms ensures the longevity and robustness of the system. The enable/disable pin provides an option for power management, enabling the system to conserve power when the 3.3V rail is not needed. The RT9164-33CGA is a reliable and efficient solution for voltage regulation in a wide variety of applications.