Onsemi LM317LDR2G

The LM317LDR2G is a voltage regulator integrated circuit (IC) produced by Onsemi. It is a linear voltage regulator that provides a stable output voltage adjustable between 1.25V and 37V, with a maximum output current of 100mA. This IC is designed to deliver precise voltage regulation with an input voltage that can be higher than the output voltage, making it very versatile for various applications. Functions: - Adjustable Output Voltage: The LM317 can be configured to provide a range of output voltages. - Current Regulation: It can be used to regulate output current. - Thermal Overload Protection: The IC includes thermal shutdown features to prevent damage. - Short-circuit Protection: It provides protection against short circuits, enhancing reliability. Applications: - Power Supply Circuits: Used in custom power supply designs for various electronics. - Battery Chargers: The IC can be employed in battery charging applications due to its adjustable output. - LED Drivers: It can control LED brightness by regulating current. - Signal Conditioning: Used in circuits that require stable voltage levels for sensors and signal processing. Alternative Parts: - LM317: Standard LM317 model without additional specifications like low dropout. - LM108: A similar voltage regulator designed to handle higher loads. - LM338: A higher current version of the LM317 capable of delivering up to 5A. - LT1084: A low dropout linear regulator with similar functionalities. Embedded Modules: - LM317 Voltage Regulator Modules: These are ready-made boards that include the LM317 and supporting components (capacitors, resistors) for easy use in projects. - Adjustable Power Supply Kits: Many kits include the LM317 IC for building adjustable output power supplies. Related Q&A: 1. Q: What is the maximum output current of the LM317LDR2G? A: The maximum output current of the LM317LDR2G is 100mA. 2. Q: Can I use the LM317LDR2G to charge batteries? A: Yes, the LM317LDR2G can be configured as a battery charger by adjusting the output voltage to match the battery's requirements. 3. Q: How do I set the output voltage of the LM317LDR2G? A: You set the output voltage of the LM317LDR2G by using two resistors in a voltage divider configuration connected to the adjustment pin. 4. Q: What is the dropout voltage of the LM317LDR2G? A: The dropout voltage of the LM317LDR2G is typically around 3V, meaning the input voltage must be at least 3V higher than the desired output voltage for proper regulation. 5. Q: What kind of protection features does the LM317LDR2G have? A: The LM317LDR2G includes thermal overload protection and short-circuit protection to enhance reliability and prevent damage during abnormal conditions.