The R1116D251D-TR-F is a voltage regulator manufactured by Ricoh. It is designed to provide a stable and regulated output voltage of 2.5V from a higher input voltage. This particular model is available in a small package, making it suitable for space-constrained applications. The “-F” suffix usually indicates that the product is lead-free, which aligns with RoHS compliance requirements. It is a CMOS-based voltage regulator featuring low supply current and excellent ripple rejection.

Applications

• Power management in portable devices: Specifically designed for mobile phones, smartphones, and tablets.
• Voltage regulation for microcontrollers: Provides stable voltage for microcontrollers in embedded systems.
• Battery-powered equipment: Ensures a constant voltage supply for various battery-operated devices.
• Wireless communication devices: Suitable for voltage regulation in RF modules and other wireless components.
• Wearable technology: Used in smartwatches, fitness trackers, and other wearable devices.

Features

• Input Voltage Range: Wide input voltage range to accommodate various power sources.
• Output Voltage: Fixed output voltage of 2.5V.
• Low Dropout Voltage: Ensures efficient regulation even when the input voltage is close to the output voltage.
• Low Supply Current: Minimizes power consumption, extending battery life in portable devices.
• Overcurrent Protection: Protects the regulator and connected components from damage due to excessive current.
• Small Package: Compact package size for space-saving designs.
• High Ripple Rejection: Effectively filters out noise and ripple from the input voltage.
• Lead-Free: Compliant with RoHS standards.

Benefits

• Stable Voltage Supply: Provides a consistent and reliable 2.5V output, ensuring proper operation of connected components.
• Extended Battery Life: Low supply current minimizes power consumption, extending the operating time of battery-powered devices.
• Protection Against Overcurrent: Safeguards the regulator and connected components from damage due to excessive current or short circuits.
• Simplified Design: Fixed output voltage simplifies circuit design and reduces the number of external components required.
• Compact Solution: Small package size makes it suitable for space-constrained applications, allowing for smaller and more portable devices.
• Environmentally Friendly: Lead-free construction complies with RoHS standards, reducing environmental impact.

The R1116D251D-TR-F is a reliable and efficient voltage regulator that is well-suited for a wide range of portable and battery-powered applications. Its low dropout voltage, low supply current, and overcurrent protection make it an excellent choice for demanding applications where power efficiency, reliability, and environmental compliance are critical.