Texas Instruments LM337KCSE3

The LM337KCSE3 is an adjustable output voltage regulator from Texas Instruments. It is designed to provide a stable, regulated output voltage that can be adjusted from -1.25V to -37V, making it suitable for various applications requiring negative voltage regulation. This IC features a high input-to-output voltage differential and is capable of providing up to 1.5A of output current, making it versatile for various electronic circuits. Functions 1. Adjustable Output Voltage: The output voltage can be set using two external resistors, giving flexibility in tuning the output. 2. Current Regulation: The LM337 can limit output current by adding a resistor in series with the load. 3. Thermal Shutdown: Internal thermal protection prevents the device from overheating. 4. Short-Circuit Protection: The IC can protect against output short circuits, enhancing reliability. 5. Voltage Reference: It provides a stable reference voltage for further circuitry. Applications - Power Supply: Used in power supply circuits requiring adjustable negative voltage outputs. - Battery Chargers: Can be utilized in the battery charger circuits needing regulation. - Test Equipment: Ideal for application in testing and measuring devices where precise voltage control is essential. - Audio Equipment: Suitable for audio amplifiers that require stable negative voltage. Alternative Parts 1. LM337: Similar adjustable voltage regulator but may come in different package types. 2. LT1084: A low-dropout adjustable voltage regulator for higher efficiency. 3. LM7912: A fixed negative voltage regulator if a specific -12V output is required. Embedded Modules - Voltage Regulation Modules (VRM): Such modules can use LM337 in their design for negative voltage regulation. - Power Supply Boards: Various custom-designed power supply boards may incorporate LM337 for balanced voltage regulation. Related Q&A 1. Q: What is the maximum output current of the LM337KCSE3? - A: The LM337KCSE3 is capable of providing an output current up to 1.5A. 2. Q: Can the output voltage of the LM337KCSE3 be adjusted? - A: Yes, the output voltage of the LM337KCSE3 can be adjusted between -1.25V and -37V using external resistors. 3. Q: What kind of protection features does the LM337KCSE3 have? - A: The LM337KCSE3 has built-in thermal shutdown and short-circuit protection features. 4. Q: In what applications is the LM337KCSE3 commonly used? - A: It is commonly used in power supplies, battery chargers, test equipment, and audio equipment. 5. Q: Are there any alternatives to the LM337KCSE3 for negative voltage regulation? - A: Yes, alternatives include the LM337, LT1084, and LM7912, which may suit specific requirements based on output voltage and current needs.