The RN5RL42AA-TR is a low-dropout (LDO) voltage regulator designed for use in various portable and battery-powered applications. It provides a stable and regulated output voltage, even when the input voltage is close to the output voltage, making it ideal for maximizing battery life.

Applications

• Battery-Powered Devices
• Wireless Communication Devices
• Microcontroller Power Supplies
• Portable Audio Players
• Camera Modules

Features

• Low Dropout Voltage: Ensures stable output voltage with low input voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• High Output Voltage Accuracy: Provides a precise and stable output voltage.
• Built-in Overcurrent Protection: Protects the regulator and the load from overcurrent conditions.
• Built-in Thermal Shutdown Protection: Prevents damage from overheating.
• Small Package: Available in a compact SOT-23-5 package.
• RoHS Compliant

Benefits

• Extended Battery Life: Low dropout voltage and low quiescent current contribute to longer battery life in portable devices.
• Improved System Reliability: Built-in protection features safeguard the regulator and the load from damage.
• Stable Output Voltage: High output voltage accuracy ensures reliable performance of the powered device.
• Reduced Board Space: Small package allows for compact designs and saves valuable board space.
• Simplified Design: Integrated features simplify circuit design and reduce the number of external components needed.

Additional Details

The RN5RL42AA-TR provides a fixed output voltage of 4.2V. It typically operates with an input voltage range of 2.5V to 5.5V. The dropout voltage is typically around 0.2V at an output current of 100mA. The quiescent current is typically around 4μA. The regulator is stable with small ceramic output capacitors, further reducing the bill of materials and board space. The operating temperature range is -40°C to +85°C. The overcurrent protection is typically around 200mA. The thermal shutdown protection activates when the junction temperature reaches approximately 150°C.