The R1114N291B-TR-F is a CMOS-based voltage regulator manufactured by Ricoh. It is a low dropout (LDO) regulator, designed to provide a stable and regulated output voltage even when the input voltage is close to the output voltage. This makes it suitable for a variety of applications, especially in battery-powered devices where maintaining a stable voltage as the battery discharges is crucial.

Applications

• Battery-Powered Devices: Provides stable voltage regulation in devices such as smartphones, tablets, and wearables.
• Portable Equipment: Powers various components in portable equipment, ensuring consistent performance.
• Wireless Modules: Regulates voltage for wireless communication modules in IoT devices and other applications.
• Microcontroller Power Supplies: Supplies clean and stable power to microcontrollers.
• Sensor Power Supplies: Provides regulated voltage for sensors in a wide range of applications.

Features

• Low Dropout Voltage: Operates with a low difference between input and output voltage.
• Low Quiescent Current: Minimizes current consumption for extended battery life.
• High Ripple Rejection: Filters out noise and ripple from the input voltage.
• Small Package: Available in compact packages for space-constrained applications.
• Overcurrent Protection: Protects the regulator and the load from overcurrent conditions.

Benefits

• Extended Battery Life: Low quiescent current maximizes battery life in portable devices.
• Stable Output Voltage: Provides a consistent and regulated output voltage under varying conditions.
• Reduced Noise: High ripple rejection minimizes noise in the output voltage.
• Smaller Board Size: Compact package size allows for smaller and more efficient designs.
• Improved System Reliability: Overcurrent protection prevents damage to the regulator and the load.

Additional Details

The R1114N291B-TR-F provides a fixed output voltage of 2.9V. It is designed to operate with input voltages typically ranging from 1.6V to 5.5V. It offers excellent transient response and a high degree of stability. The package is generally a small SOT-23 or similar. For detailed specifications, including dropout voltage characteristics, output voltage accuracy, and thermal resistance, refer to the Ricoh datasheet. It is RoHS compliant.