The R1131N281D-TR-FF is a low-dropout (LDO) regulator manufactured by Ricoh Electronic Devices. This regulator is designed to provide a stable and accurate output voltage from a wide range of input voltages. Its low dropout voltage and small package size make it suitable for portable and battery-powered applications.

Applications:

• Mobile phones and smartphones: Power management for various sub-circuits.
• Wearable devices: Regulation of power supplies in smartwatches and fitness trackers.
• IoT (Internet of Things) devices: Powering sensors and communication modules.
• Portable medical devices: Providing stable voltage for sensitive electronics.
• Wireless modules: Supplying regulated power to RF transceivers.

Features:

• Low Dropout Voltage: Ensures stable output voltage even when the input voltage is close to the output voltage.
• High Output Voltage Accuracy: Provides a precise and stable output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode, extending battery life.
• Overcurrent Protection: Protects the regulator and the load from damage due to excessive current.
• Small Package: Allows for use in space-constrained applications.

Benefits:

• Extended Battery Life: Low quiescent current minimizes power consumption, resulting in longer battery life.
• Stable Voltage Supply: Provides a stable and accurate output voltage, ensuring proper operation of connected devices.
• Protection Against Damage: Overcurrent protection prevents damage to the regulator and the load.
• Compact Design: Small package allows for integration into space-constrained applications.
• Improved System Reliability: Stable voltage regulation contributes to overall system reliability.

Technical Specifications:

The R1131N281D-TR-FF typically has an output voltage of 2.8V. It also includes built-in short-circuit protection and thermal shutdown protection. Consult the official Ricoh datasheet for the most accurate and detailed specifications, including input voltage range, output current capabilities, and operating temperature range.