LP2951ACM: High-Performance Linear Voltage Regulator by Texas Instruments | Features & Applications
LP2951ACM: High-Performance Linear Voltage Regulator by Texas Instruments
The LP2951ACM is a high-performance, low-dropout linear voltage regulator manufactured by Texas Instruments (TI), designed to deliver stable and efficient power regulation for a wide range of applications. This product is part of the PMIC - Voltage Regulators - Linear category under the broader classification of Integrated Circuits (ICs). Below, we delve into the detailed specifications, features, and benefits of this IC to help you understand its capabilities and suitability for your design needs.
Key Features and Specifications
Output Configuration and Type
The LP2951ACM provides a Positive Adjustable (Fixed) output configuration, allowing users to set the output voltage within a specific range. Its adjustable nature makes it highly versatile for various applications requiring precise voltage control.
Voltage Regulation
- Input Voltage Range: The regulator supports an input voltage range up to 30V, making it suitable for systems with higher voltage sources.
- Output Voltage Range: The minimum fixed output voltage is 1.235V, but it can be adjusted up to 29V depending on the external resistors used in the circuit.
- Dropout Voltage: With a maximum dropout voltage of 0.6V at 100mA, the LP2951ACM ensures efficient operation even when the input voltage is close to the output voltage.
Current Handling
- Output Current: The regulator can deliver up to 100mA of current, making it ideal for low-power applications such as battery-operated devices, portable electronics, and microcontroller-based systems.
- Quiescent Current: The quiescent current is as low as 120 A, which significantly reduces power consumption during standby or light-load conditions.
- Supply Current: The maximum supply current required by the regulator itself is 14 mA, ensuring minimal overhead on the system's power budget.
Protection Features
The LP2951ACM incorporates robust protection mechanisms to safeguard both the regulator and the connected circuitry: - Over Current Protection: Prevents damage caused by excessive load currents. - Over Temperature Protection: Ensures safe operation by shutting down the regulator if the junction temperature exceeds 125 C. - Short Circuit Protection: Protects against short circuits that could otherwise lead to catastrophic failures.
Enable Feature
The regulator includes an Enable Pin, providing designers with the ability to turn the regulator on or off as needed. This feature enhances power management flexibility and contributes to energy savings in systems where power conservation is critical.
Operating Temperature
The LP2951ACM operates reliably over a wide temperature range of -40 C to 125 C (TJ), making it suitable for both industrial and consumer-grade applications.
Package and Mounting
- Package Type: The regulator comes in an 8-SOIC (0.154", 3.90mm Width) package, offering a compact footprint while maintaining excellent thermal performance.
- Mounting Type: Designed for Surface Mount applications, this package facilitates automated assembly processes and is compatible with modern PCB manufacturing techniques.
Applications
The LP2951ACM is well-suited for applications requiring stable, low-noise voltage regulation, including: - Battery-powered devices - Portable electronics - Microcontroller power supplies - Industrial instrumentation - Consumer electronics
Why Choose the LP2951ACM?
- High Efficiency: The low dropout voltage and quiescent current ensure optimal efficiency, minimizing power loss and extending battery life in portable devices.
- Versatility: With an adjustable output voltage range and a single regulator channel, the LP2951ACM offers flexibility for diverse application requirements.
- Reliability: Built-in protection features and wide operating temperature range enhance the reliability of the regulator in challenging environments.
- Compact Design: The small 8-SOIC package allows for space-saving designs without compromising performance.
- Ease of Use: The inclusion of an enable pin simplifies power management and integration into complex systems.
Product Status
Please note that the LP2951ACM is currently marked as "Not For New Designs" by Texas Instruments. While existing stock may still be available, it is recommended to evaluate alternative solutions for new projects. However, if you are working on legacy systems or require replacement parts for existing designs, the LP2951ACM remains a reliable choice.
Conclusion
The LP2951ACM from Texas Instruments is a high-quality linear voltage regulator that combines efficiency, versatility, and reliability. Whether you're designing battery-operated devices, microcontroller power supplies, or industrial equipment, this IC offers the performance and features necessary to meet your application's demands. Visit our website to purchase the LP2951ACM and explore other products in our extensive inventory of electronic components.
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