LM2990S-12

The LM2990S-12 is a negative voltage linear regulator designed to provide a stable output voltage with high current capabilities. It is part of the LM2990 series, which offers multiple fixed output voltage options. Specifically, the LM2990S-12 provides a -12V output. It is capable of delivering up to 1.5A of current, making it suitable for various applications requiring a negative voltage supply.
Key features of the LM2990S-12 include a wide input voltage range, low dropout voltage, and excellent load and line regulation. It includes protection features such as current limiting and thermal shutdown to prevent damage under fault conditions. The device is typically housed in an easy-to-mount TO-263 package, which aids in efficient heat dissipation.
The LM2990S-12 is commonly used in telecommunications, industrial equipment, and other electronic systems where a reliable negative voltage is needed. Its simplicity and robustness make it a popular choice for designers looking to implement efficient power management solutions.

The LM2990S-12 is a negative voltage regulator designed to provide a stable output voltage of -12V. It features a wide input voltage range of -14.5V to -26V and a high output current capability of up to 1.5A. The device offers excellent line and load regulation characteristics with a typical dropout voltage of 0.6V at full load, ensuring efficient operation.
Key features of the LM2990S-12 include:
1. Low Dropout Voltage: Minimizes power loss and heat generation.
2. Current Limiting and Thermal Shutdown: Protects the device from overcurrent and overheating conditions.
3. Reverse Polarity Protection: Safeguards against incorrect voltage connection.
4. Excellent Transient Response: Maintains stability during sudden changes in load conditions.
5. Output Capacitor Stability: Compatible with a wide range of output capacitors, facilitating design flexibility.
6. 5-Pin TO-263 Package: Provides a compact and efficient thermal solution for PCB layouts.
These features make the LM2990S-12 suitable for various applications requiring negative voltage regulation, including industrial electronics, instrumentation, and automotive systems.

The LM2990S-12 is a negative voltage regulator that typically comes in a TO-263 surface-mount package, also known as a D2PAK. This package is designed for efficient thermal performance and is commonly used in applications requiring a compact form factor.

The LM2990S-12 is a negative voltage regulator with a fixed output voltage of -12V. It is designed to provide a regulated output with a high current capability and low dropout. The package typically used for the LM2990S-12 is the TO-263 surface-mount package, which has 5 pins. The functions of these pins are usually as follows:
1. Input (Pin 1): This is the unregulated input voltage pin where the negative input voltage is supplied.
2. Ground (Pin 2): This is the ground reference pin for the device.
3. Output (Pin 3): This pin provides the regulated negative output voltage.
4. Shutdown/Enable (Pin 4): This pin is used to enable or disable the regulator. A logic high disables the output, while a logic low enables it.
5. NC (Pin 5): This is typically a no-connect pin, meaning it is not internally connected to the device.
The LM2990S-12 is designed to handle input voltages up to -26V and provides a regulated output with a typical dropout voltage of 0.6V to 0.8V under specified conditions.

The LM2990S-12 is manufactured by Texas Instruments, a global semiconductor company. Texas Instruments (TI) is known for designing and manufacturing a wide array of electronic components, including integrated circuits, microcontrollers, and digital signal processors. The company primarily serves sectors such as automotive, industrial, personal electronics, and communications equipment.

The LM2990S-12 is a negative voltage regulator with a fixed output of -12V. It is commonly used in applications requiring stable negative voltage supply, such as in power supply circuits, audio equipment, communication devices, and instrumentation systems. Its low dropout voltage and high current capability make it suitable for battery-operated devices and systems where efficient power regulation is critical. Additionally, its thermal shutdown and current limiting features provide reliability and protection in various electronic applications.

The LM2990S-12 is a negative voltage regulator. Equivalent products might include the LT1033 (-12V version) from Analog Devices, the MC7912 from ON Semiconductor, and the uA7912 from Texas Instruments. Ensure compatibility in terms of voltage, current output, and package type when selecting a replacement. Always consult the datasheets for precise specifications and pin configurations before substitution.