The R1501S090B-E2-AE is a voltage regulator IC manufactured by Ricoh. It is a low-dropout (LDO) regulator designed to provide a stable output voltage even when the input voltage is close to the desired output voltage. This LDO regulator is known for its low current consumption, small size, and high accuracy, making it suitable for various battery-powered devices and other applications requiring efficient voltage regulation.

Applications

• Battery-Powered Devices: Used in smartphones, tablets, and other portable devices to regulate voltage and extend battery life.
• Wearable Electronics: Employed in smartwatches and fitness trackers for efficient power management.
• IoT Devices: Integrated into Internet of Things (IoT) devices, such as sensors and wireless modules, for stable voltage regulation.
• Microcontroller Power Supply: Provides a stable voltage supply for microcontrollers in embedded systems.
• General Electronic Circuits: Suitable for various voltage regulation needs in consumer electronics and industrial applications.

Features

• Low Dropout Voltage: Maintains a stable output voltage even with a small difference between input and output voltage.
• Low Current Consumption: Minimizes power consumption, extending battery life in portable devices.
• High Output Voltage Accuracy: Provides a precise and stable output voltage.
• Small Package: Compact package size allows for easy integration into space-constrained applications.
• Overcurrent Protection: Protects the device and connected circuits from overcurrent conditions.
• Thermal Shutdown: Shuts down the device when the temperature exceeds a safe limit.

Benefits

• Improved Battery Life: Low current consumption and efficient voltage regulation extend battery life.
• Stable Output Voltage: Ensures reliable operation of electronic devices by providing a stable voltage supply.
• Reduced Board Space: Small package size allows for miniaturization of electronic products.
• Enhanced System Reliability: Protection features prevent damage from overcurrent and over-temperature conditions.
• Simplified Circuit Design: Easy to use and integrate into various electronic circuits.

Technical Specifications

The R1501S090B-E2-AE has a fixed output voltage of 0.9V. The input voltage range typically spans from 1.6V to 5.5V. The maximum output current is typically 300mA. The dropout voltage is typically around 100mV at the maximum output current. The operating temperature range typically spans from -40°C to +85°C. It is designed for surface mount technology (SMT) and is available in a small SOT-23-5 package.