The LP2954AIS is a high-performance linear voltage regulator designed by Texas Instruments (formerly Luminary Micro) that provides a robust and efficient power management solution for electronic devices. This integrated circuit is specifically engineered to deliver a stable 5V output with a maximum current capacity of 250mA, making it ideal for low to moderate power consumption applications.
The regulator addresses critical design challenges in power supply management by incorporating advanced protection features, including over-current, over-temperature, and reverse polarity safeguards. Its wide operating temperature range of -40°C to 125°C ensures reliable performance across diverse environmental conditions, making it suitable for industrial, automotive, and consumer electronics applications.
Key specifications include a low voltage dropout of 0.8V at 250mA, a maximum input voltage of 30V, and a very low quiescent current of 150µA. The device features an enable control function, allowing precise power management and circuit optimization. Its surface-mount DDPAK/TO-263-3 package provides excellent thermal performance and easy integration into compact electronic designs.
Primary advantages of the LP2954AIS include its robust protection mechanisms, compact form factor, and consistent voltage regulation. The regulator is particularly well-suited for embedded systems, portable electronics, sensor networks, and low-power electronic devices requiring stable 5V power supply.
Equivalent or alternative models in the same family include:
- LP2954IMX
- LP2954AISX
- LP2954AIM
- TL2954AIP
Compatibility extends across various electronic platforms, with the device designed for straightforward implementation in mixed-signal and digital circuits requiring reliable, efficient power regulation.
While the component is not fully RoHS compliant due to lead content, it remains a popular choice in many legacy and specialized electronic design applications where stringent environmental regulations may be less critical.
LP2954AIS Key Technical Attributes
Linear Voltage Regulator IC, 1 Output, 5V, 250mA, Fixed Output
LP2954AIS Packing Size
Type: Tube, Material: Plastic, Size: TO-263-3, Pin Configuration: 3 leads + Tab, Thermal Characteristics: Over Temperature Protection, Electrical Properties: 0.8V Dropout at 250mA
LP2954AIS Application
Ideal for low-current applications that require a fixed 5V output, such as battery-powered devices, portable electronics, and microcontroller systems
LP2954AIS Features
The LP2954AIS from Luminary Micro / Texas Instruments is a linear voltage regulator that offers a stable fixed output of 5 volts with a current capacity of 250mA. It is designed to operate over a wide input voltage range from up to 30 V, making it suitable for diverse applications. The regulator can maintain output voltage within a tight range even with variations in input voltage and load conditions. It features low dropout voltage of only 0.8V at full load, which enhances its efficiency and allows operation at lower input voltages. Its quiescent current is remarkably low at 150A, which minimizes the power dissipation when idle. Additionally, it includes protective features against over-current, over-temperature, and reverse polarity incidents.
LP2954AIS Quality and Safety Features
The LP2954AIS is equipped with several protective measures including over-current protection, over-temperature shutdown, and reverse polarity protection. It also has a Moisture Sensitivity Level rating of 3, safeguarding it from moisture-related damage during storage and handling.
LP2954AIS Compatibility
This device is compatible with a wide range of applications requiring 5V fixed output and it supports surface mount technology for easier integration into various circuit designs.
LP2954AIS Datasheet PDF
For comprehensive specifications and detailed usage guidelines of the LP2954AIS, refer to the datasheet PDF available on our website. We highly recommend downloading the authoritative version directly from our page to ensure you have the most accurate and up-to-date information.
Quality Distributor
IC-Components is a premium distributor of Luminary Micro / Texas Instruments products including the LP2954AIS. We ensure the highest level of product availability and customer service. Get a quote and purchase your components through our website to benefit from reliable and quick delivery of genuine parts.
