The R1121N351B-TR is a 3.5V fixed output voltage regulator IC manufactured by Ricoh. It is designed for low power applications that require a stable and precise voltage source. The 'TR' suffix indicates that the component is supplied in Tape and Reel packaging for automated assembly processes.

Applications

• Portable Devices: Such as MP3 players and handheld gaming systems.
• Wearable Technology: Including smartwatches and fitness trackers.
• IoT (Internet of Things) Devices: Powering sensors and communication modules.
• Mobile Phones: Voltage regulation for specific sub-circuits.
• Small Microcontroller Systems: Providing a stable voltage supply for microcontrollers.

Features

• Fixed Output Voltage: Provides a stable 3.5V output.
• High Output Voltage Accuracy: Ensures consistent voltage supply to connected components.
• Low Supply Current: Minimizes power consumption in battery-operated devices.
• Overcurrent Protection: Protects the regulator and connected circuits from excessive current draw.
• Thermal Shutdown Protection: Prevents overheating and potential damage to the regulator.
• Small Package: Suitable for space-constrained applications.

Benefits

• Extended Battery Life: Low quiescent current maximizes operational duration for battery-powered devices.
• Reliable Performance: High accuracy output voltage ensures stable operation of connected components.
• Compact Design: Small footprint allows for integration into miniaturized electronics.
• Robust Protection: Overcurrent and thermal shutdown features enhance system reliability.
• Simplified Design: Fixed output voltage reduces the need for external components.

Additional Details

The R1121N351B-TR typically operates within a specified input voltage range, generally slightly above the 3.5V output. It includes overcurrent and thermal protection mechanisms to ensure safe and reliable operation under various conditions. The 'TR' suffix denotes tape and reel packaging for automated assembly processes. It is often housed in a small surface mount package such as a SOT-23 or similar. The key advantage is the precisely regulated 3.5V output, making it suitable for powering specific components and ICs that require this voltage.