The RT9166A-33CG is a low dropout (LDO) regulator manufactured by Richtek USA Inc. It is designed to provide a stable and accurate 3.3V output voltage from a higher input voltage. The regulator is characterized by its low dropout voltage, low quiescent current, and excellent transient response, making it suitable for battery-powered and other low-power applications.

Applications

• Portable devices
• Battery-powered equipment
• Microcontroller power supplies
• Wireless communication devices
• Sensor modules

Features

• Low dropout voltage
• Low quiescent current
• High output accuracy
• Overcurrent protection
• Thermal shutdown protection
• Stable with ceramic output capacitors
• Small package size

Benefits

• Extends battery life in portable devices due to low quiescent current and low dropout voltage.
• Provides a stable and accurate output voltage for sensitive electronic components.
• Protects the regulator and connected circuitry from damage due to overcurrent and overheating conditions.
• Reduces the size and cost of the application by allowing the use of ceramic output capacitors.
• Enables compact and lightweight designs.

Additional Details

The RT9166A-33CG provides a fixed 3.3V output voltage. The input voltage range typically spans from slightly above 3.3V to the maximum rated input voltage. The regulator has a low dropout voltage, meaning it can maintain a stable output voltage even when the input voltage is only slightly higher than the output voltage. The device typically has a low quiescent current consumption, which is crucial for battery-powered applications. The regulator is stable with ceramic output capacitors, which are generally preferred due to their small size and low ESR. The overcurrent and thermal shutdown protection features enhance system reliability. The small package size facilitates easy integration into space-constrained applications. The RT9166A-33CG is designed to provide a reliable and efficient power solution for a wide range of low-power applications.