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RP122K311B-TR

RP122K311B-TR Description

The RP122K311B-TR is a high-performance linear voltage regulator designed by Nisshinbo Micro Devices Inc., offering a fixed output voltage of 3.1V and a maximum output current of 400mA. This regulator is part of the RP122x series and is housed in a compact DFN1010-4 package, making it suitable for surface mount applications. The device features a maximum input voltage of 5.5V and a low dropout voltage of 0.265V at 400mA, ensuring efficient operation even under low input-to-output voltage differentials. With a quiescent current of just 25 µA, the RP122K311B-TR is ideal for low-power applications. It also includes an enable control feature and robust protection mechanisms against overcurrent and overtemperature conditions. The regulator is RoHS compliant and has a moisture sensitivity level (MSL) of 1, making it suitable for a wide range of manufacturing processes. The package format is tape and reel (TR), facilitating automated assembly processes.

RP122K311B-TR Features

• Fixed Output Voltage: Provides a stable 3.1V output, ensuring consistent power supply to connected devices.
• High Efficiency: Achieves a low dropout voltage of 0.265V at 400mA, minimizing power loss and improving overall efficiency.
• Low Quiescent Current: Consumes only 25 µA in quiescent state, making it ideal for battery-powered and low-power applications.
• Enable Control: Offers an enable pin for easy control of the regulator’s operation, allowing for power-saving modes.
• Protection Features: Includes overcurrent and overtemperature protection to safeguard the device and connected circuits from damage.
• High PSRR: Exhibits a power supply rejection ratio (PSRR) of 90dB to 65dB across a frequency range of 1kHz to 100kHz, ensuring high performance in noisy environments.
• RoHS Compliance: Meets environmental standards, making it suitable for a wide range of applications.
• Surface Mount Compatibility: The DFN1010-4 package is designed for surface mount technology, facilitating integration into compact designs.
• Moisture Sensitivity Level: MSL 1 (Unlimited) ensures the device can be used in various manufacturing environments without additional handling precautions.

RP122K311B-TR Applications

The RP122K311B-TR is well-suited for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and high PSRR make it ideal for use in:

• Consumer Electronics: Portable devices such as smartphones, tablets, and wearable technology that require low power consumption and high efficiency.
• Industrial Equipment: Control systems, sensors, and IoT devices where reliability and performance are critical.
• Telecommunications: Base stations, routers, and other networking equipment that demand stable power supply and low noise.
• Automotive Electronics: In-vehicle infotainment systems, advanced driver assistance systems (ADAS), and other automotive applications where space is limited and efficiency is paramount.

Conclusion of RP122K311B-TR

The RP122K311B-TR is a versatile and efficient linear voltage regulator designed to meet the demands of modern electronic applications. Its combination of low dropout voltage, low quiescent current, and high PSRR ensures optimal performance in low-power and high-noise environments. The inclusion of enable control and robust protection features further enhances its reliability and versatility. Whether used in consumer electronics, industrial equipment, telecommunications, or automotive applications, the RP122K311B-TR offers a reliable and efficient power solution.