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Onsemi LM2931CDR2G Environmental and export classification status description

The Onsemi LM2931CDR2G is a low-dropout (LDO) linear voltage regulator designed for use in a variety of applications. It provides a stable output voltage with low noise and low dropout, making it suitable for battery-powered devices and applications that require precise voltage regulation. Functions - Voltage Regulation: Provides a stable output voltage (typically 5V or adjustable) with low dropout voltage. - Thermal Protection: The LM2931 includes built-in thermal shutdown capabilities that prevent overheating. - Current Limiting: It has current limiting features to protect the device and the load during overcurrent conditions. - Low Noise Operation: Suitable for powering sensitive analog circuits due to its low noise output. Applications - Battery-Powered Devices: Regulates battery voltages to maintain steady output for portable applications. - Microcontroller Interfacing: Supplies power to microcontrollers and other digital devices requiring stable voltage. - RF and Analog Devices: Used in RF applications and analog circuits that need stable low-noise power. - Consumer Electronics: Powers devices like handheld gadgets, cameras, and musical instruments. Alternative Parts - LM317: Adjustable voltage regulator with similar functions but higher dropout voltage. - LP2985: Another low-dropout regulator suitable for low-power applications. - LM1117: Low-dropout regulator that can support higher current loads. - LM78XX Series: Fixed voltage regulators, but with higher dropout voltages compared to LDOs. Embedded Modules While the LM2931CDR2G component itself is not an embedded module, it can be found in many embedded system designs where low dropout voltage regulation is needed. Additionally, it can be integrated into custom PCB designs as part of an embedded solution. Related Q&A 1. Q: What is the typical application for the LM2931CDR2G voltage regulator? A: The LM2931CDR2G is typically used in battery-powered devices where stable voltage regulation is crucial, as well as in microcontrollers and RF circuits that require low-noise power supply. 2. Q: What is the maximum output current of the LM2931CDR2G? A: The LM2931CDR2G can provide up to 1 A of output current, making it suitable for various low to moderate power applications. 3. Q: How does the LM2931CDR2G handle thermal overload? A: The LM2931 is equipped with built-in thermal shutdown protection, which automatically disables the output if the die temperature exceeds a certain limit, preventing damage due to overheating. 4. Q: What is the dropout voltage of the LM2931CDR2G? A: The LM2931CDR2G features a low dropout voltage, typically around 0.5V to 0.7V at full load, which allows it to maintain regulation even when the input voltage is close to the output voltage. 5. Q: Can the LM2931CDR2G be used for adjustable output voltage applications? A: No, the LM2931CDR2G is typically available as a fixed 5V output regulator. For adjustable applications, you might consider alternatives like the LM317, which allows for a variable output voltage configuration.