LM2931 (16)
The LM2931 is available from Onsemi at Xecor. Designed for low-power voltage regulation, the LM2931 offers very low quiescent current, reverse battery protection, and load dump protection up to 60V. Available in multiple package options, including TO-220, TO-92, TO-263, and SOIC-8, it is ideal for automotive applications, memory standby circuits, and low-power processor power supplies. Whether used in standby power systems or CMOS-based designs, this series ensures reliable performance and efficiency for demanding applications. Xecor is an authorized distributor for Onsemi. Please view our extensive selection of the LM2931 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LM2931CDR2G | LM2931CDR2G by ON Semiconductor is an adjustable 100mA voltage regulator with +/-5% accuracy | SOIC-8 | 5,707 | |
| LM2931CM | Low dropout voltage regulator providing a stable output voltage from 3V to 24V with a maximum output current of 0.1A in a small 8-pin SOIC package | SOIC-8 | 5,429 | |
| LM2931AZ50R | Regulators with inhibit feature | TO-92 | 5,750 | |
| LM2931ACDR2G | LM2931ACDR2G is a low dropout voltage regulator capable of providing a stable output voltage ranging from 3V to 24V | SOIC-8 | 5,461 | |
| LM2931AD2T-5R4G | LM2931AD2T-5R4G | TO-263-3 | 6,935 | |
| LM2931AD33R | Control voltage with minimal power loss | SOIC-8 | 8,659 | |
| LM2931AD50R | LDO Regulator Pos 5V 0.1A 8-Pin SO N T/R | SOIC-8 | 5,840 | |
| LM2931D | Packaged in an 8-pin SO N Tube for easy integration into circuit designs | 8-SOIC | 6,194 | |
| LM2931CT | LM2931CT is a low dropout voltage regulator from the LDO Voltage Regulators Series | TO-220-5 | 7,121 | |
| LM2931CDG | Low dropout voltage regulators for adjustable 3-24V output with 100mA load dump protection | 8-SOIC | 9,489 | |
| LM2931CD | With its compact size and high efficiency, the LM2931CD is a reliable choice for power management in electronic devices | 8-SOIC | 5,789 | |
| LM2931AZ5 | This TO-92-3 packaged LM2931AZ5 is a 100mA Fixed Positive Voltage Regulator designed for precision voltage regulation | TO-226-3 | 9,560 | |
| LM2931ADT50R | 3-pin DPAK package | TO-252-3 | 9,320 | |
| LM2931ACDG | LDO Voltage Regulators 3-24V ADJ 100mA w/Load Dump | 8-SOIC | 7,236 | |
| LM2931CS | High-performance DC-DC converter for precision applicatio | TO-263 (KTT)-5 | 2,903 | |
| LM2931AT-5.0 | LDO Voltage Regulators 5V 100mA | TO-220-3 | 4,996 |
Key Featrues
Low Quiescent Current: The LM2931-N features a very low quiescent current of 1mA or less when supplying 10mA loads. This significantly enhances power efficiency, making it ideal for standby power systems and low-power applications like memory standby circuits and CMOS processors.
High PSRR (Power Supply Rejection Ratio): With a PSRR of 80dB at 120Hz, the LM2931-N effectively minimizes noise and ripple from the input power supply. This ensures stable and clean output voltage, which is critical for sensitive electronic devices and precision applications.
Reverse Battery Protection: Designed for automotive applications, the LM2931-N includes reverse battery protection, safeguarding the regulator and connected circuitry from damage caused by incorrect battery installation or reverse polarity. This feature enhances reliability in harsh environments.
Low Dropout Voltage: The regulator operates with a low dropout voltage of 300mV at 100mA, allowing it to maintain regulation even when the input voltage is very close to the output voltage. This makes it suitable for applications with tight voltage margins and improves energy efficiency.
Thermal and Short Circuit Protection: The LM2931-N incorporates internal thermal overload and short circuit protection, preventing damage from overheating or excessive current. This ensures robust performance and longevity in demanding operating conditions.
High PSRR (Power Supply Rejection Ratio): With a PSRR of 80dB at 120Hz, the LM2931-N effectively minimizes noise and ripple from the input power supply. This ensures stable and clean output voltage, which is critical for sensitive electronic devices and precision applications.
Reverse Battery Protection: Designed for automotive applications, the LM2931-N includes reverse battery protection, safeguarding the regulator and connected circuitry from damage caused by incorrect battery installation or reverse polarity. This feature enhances reliability in harsh environments.
Low Dropout Voltage: The regulator operates with a low dropout voltage of 300mV at 100mA, allowing it to maintain regulation even when the input voltage is very close to the output voltage. This makes it suitable for applications with tight voltage margins and improves energy efficiency.
Thermal and Short Circuit Protection: The LM2931-N incorporates internal thermal overload and short circuit protection, preventing damage from overheating or excessive current. This ensures robust performance and longevity in demanding operating conditions.
Applications
Memory Standby Power Supply: The LM2931-N is ideal for providing standby power to memory circuits in low-power systems. Its very low quiescent current (1mA or less) and low dropout voltage (0.2V at 10mA) ensure efficient power delivery, making it suitable for applications like CMOS memory backup or battery-powered devices requiring minimal power consumption during standby.
Automotive Electronics Protection: Designed for automotive applications, the LM2931-N offers robust protection against reverse battery installations, load dumps (up to 60V), and reverse transients (up to -50V). This makes it perfect for powering and protecting sensitive automotive electronics, such as infotainment systems, ECUs, or sensors, in harsh automotive environments.
Low-Power Processor Supply: The LM2931-N is well-suited for powering low-power processors, such as those used in IoT devices or portable electronics. Its ability to deliver up to 100mA of output current with minimal input-output differential (less than 0.6V) ensures stable and efficient power delivery, even in battery-operated systems with tight power budgets.
Industrial Control Systems: With its high PSRR (53dB at 100kHz) and thermal overload protection, the LM2931-N is an excellent choice for industrial control systems. It can reliably power sensors, actuators, or control modules in environments with noisy power supplies or fluctuating input voltages, ensuring consistent performance and protection against short circuits or overheating.
Automotive Electronics Protection: Designed for automotive applications, the LM2931-N offers robust protection against reverse battery installations, load dumps (up to 60V), and reverse transients (up to -50V). This makes it perfect for powering and protecting sensitive automotive electronics, such as infotainment systems, ECUs, or sensors, in harsh automotive environments.
Low-Power Processor Supply: The LM2931-N is well-suited for powering low-power processors, such as those used in IoT devices or portable electronics. Its ability to deliver up to 100mA of output current with minimal input-output differential (less than 0.6V) ensures stable and efficient power delivery, even in battery-operated systems with tight power budgets.
Industrial Control Systems: With its high PSRR (53dB at 100kHz) and thermal overload protection, the LM2931-N is an excellent choice for industrial control systems. It can reliably power sensors, actuators, or control modules in environments with noisy power supplies or fluctuating input voltages, ensuring consistent performance and protection against short circuits or overheating.
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