The R1114N251D-TR is a low-dropout (LDO) voltage regulator manufactured by Ricoh. It is designed to provide a stable 2.5V output voltage with high accuracy and low power consumption. This makes it suitable for a wide range of portable and battery-powered applications.

Applications

• Smartphones and Tablets: Used to power various components, including the application processor, memory, and peripheral devices.
• Wearable Devices: Supplies a stable voltage to sensors, microcontrollers, and communication modules in smartwatches and fitness trackers.
• IoT (Internet of Things) Devices: Provides efficient power management for sensors, actuators, and communication modules.
• Wireless Communication Modules: Regulates voltage in Bluetooth, Wi-Fi, and other wireless modules to ensure reliable operation.
• Portable Audio Players: Powers audio amplifiers and other audio processing components.

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 reliable 2.5V output voltage.
• Low Quiescent Current: Minimizes power consumption, extending battery life.
• Overcurrent Protection: Protects the device and connected circuitry from damage due to excessive current draw.
• Short-Circuit Protection: Shuts down the output in the event of a short circuit.
• Thermal Shutdown Protection: Protects the device from overheating by shutting down the output when the junction temperature exceeds a safe limit.

Benefits

• Extended Battery Life: Low quiescent current minimizes power consumption, leading to longer battery life in portable applications.
• Improved System Reliability: High output voltage accuracy ensures stable operation of connected circuits.
• Robust Protection: Overcurrent, short-circuit, and thermal shutdown protection enhance system reliability.
• Compact Design: Small package size allows for use in space-constrained applications.
• Simplified Design: Integrated protection features simplify the design process and reduce the need for external components.

Additional Details

The R1114N251D-TR typically operates with an input voltage range of 2.0V to 6.0V. It is commonly available in a small SOT-23-5 package. It includes a chip enable (CE) pin for power saving, allowing the regulator to be turned off when not needed. The operating temperature range is generally from -40°C to +85°C.