LM2990S-12

The LM2990S-12 is a negative voltage regulator integrated circuit designed to provide a stable output voltage of -12V. It is part of the LM2990 series, known for its low dropout voltage and high current capability. The device can deliver up to 1.5A of output current with a typical dropout voltage of 0.6V at maximum load. It features internal current limiting, thermal shutdown, and safe-area compensation, which enhance its robustness and reliability in various applications.
The LM2990S-12 is suitable for use in applications requiring a negative voltage supply, such as powering analog circuits, operational amplifiers, and digital systems with negative rail requirements. It is housed in a TO-263 surface-mount package, which aids in heat dissipation and is suitable for compact designs. The IC operates over a wide input voltage range, adding flexibility in power supply design. Its low noise and high precision characteristics make it ideal for sensitive electronic applications. Overall, the LM2990S-12 provides a reliable solution for generating a regulated negative voltage in electronic circuits.

The LM2990S-12 is a negative voltage regulator. Equivalent products can include:
1. LT1033 - A negative adjustable voltage regulator.
2. MC79012 - From the 79xx series for negative voltage regulation.
3. LM337 - Adjustable negative voltage regulator.
4. L7905 - Part of the 79xx series, depending on the required voltage and current specifications.
Ensure compatibility with your specific application by checking each product's datasheet for detailed specifications.

The LM2990S-12 is a low dropout (LDO) negative voltage regulator. Key features include:
1. Output Voltage: Provides a fixed output of -12V.
2. Input Voltage: Can handle input voltages down to -26V.
3. Output Current: Capable of delivering up to 1.5A.
4. Low Dropout Voltage: Typically about 0.6V at full load, which enhances efficiency.
5. High Accuracy: Ensures a precise output voltage with a typical tolerance of ±5%.
6. Thermal Protection: Includes thermal shutdown to prevent overheating.
7. Current Limiting: Built-in current limit feature for added safety.
8. Reverse Polarity Protection: Designed to protect against reverse voltage conditions.
9. SO Package: Available in a surface-mount TO-263 package for ease of use in various applications.
10. Low Quiescent Current: Offers efficient power usage with a typical quiescent current of about 1.5mA.
These features make the LM2990S-12 suitable for applications requiring reliable negative voltage regulation with high current handling and protection features.

The LM2990S-12 is a negative voltage regulator with a pin count of 5 in a TO-263 package. It is designed to provide a fixed output voltage of -12V. The key functions and pin configuration are as follows:
1. Pin 1 (Input): This is the input pin where the unregulated negative voltage is supplied. It should be more negative than the desired output voltage.
2. Pin 2 (Ground): This pin is connected to the ground or zero voltage reference point of the circuit.
3. Pin 3 (Output): The regulated -12V output is obtained from this pin.
4. Pin 4 (Shutdown): This is the shutdown pin used to enable or disable the regulator. The device is operational when this pin is connected to ground.
5. Pin 5 (N.C./No Connect): This pin is not internally connected and can be left floating or grounded.
The LM2990S-12 is capable of delivering up to 1.5A of current and includes features like thermal shutdown, short-circuit protection, and safe operating area protection.

The LM2990S-12 is manufactured by Texas Instruments, which is a global semiconductor design and manufacturing company. Founded in 1930 and headquartered in Dallas, Texas, Texas Instruments (TI) is one of the largest producers of semiconductors worldwide. The company designs and produces a wide range of products, including integrated circuits, microcontrollers, sensors, and power management solutions. TI's products are used in various industries, including automotive, industrial, consumer electronics, and communication equipment. Known for its innovation and commitment to quality, Texas Instruments plays a crucial role in the electronics supply chain and contributes significantly to technological advancements across multiple sectors.

The LM2990S-12 is a low dropout (LDO) negative voltage regulator designed for applications requiring high current and low dropout voltage. It is commonly used in power supply systems for telecommunications, industrial equipment, and consumer electronics where a stable negative voltage is needed. Its features make it ideal for powering analog and digital circuits, operational amplifiers, and other devices requiring a -12V rail. The LM2990S-12 can also be utilized in battery-powered applications due to its efficiency and low quiescent current. Additionally, it is suitable for use in noise-sensitive applications owing to its low output voltage noise and high ripple rejection.

The LM2990S-12 is a low dropout negative voltage regulator in a TO-263 package. The TO-263 is a surface-mount package, also known as D2PAK, designed for power semiconductor devices and characterized by its flat, thermally enhanced design for efficient heat dissipation.