Overview of Texas Instruments LP2982IMT-3.3

The Texas Instruments LP2982IMT-3.3 is a high-performance, micropower, low-noise voltage regulator designed for use in battery-powered systems. This regulator offers outstanding features such as low dropout voltage, low quiescent current, and high output voltage accuracy, making it ideal for portable electronics where extended battery life is crucial.

Key Features

• Output Voltage: The LP2982IMT-3.3 provides a fixed output voltage of 3.3V, which is common for powering digital circuits and microcontrollers in modern electronics.
• High Accuracy: It boasts an impressive output voltage accuracy of ±0.5%, ensuring reliable performance for sensitive applications.
• Low Dropout Voltage: With a dropout voltage as low as 280 mV at 50 mA load, this regulator maintains output voltage even when the supply voltage is very close to the output voltage, enhancing efficiency.
• Low Quiescent Current: The device has an extremely low quiescent current of typically 28 µA, increasing battery life in portable applications.
• Noise Reduction: The LP2982IMT-3.3 features a low output noise of 30 µVRMS, which is ideal for RF and precision analog circuits.
• Thermal Protection: It includes thermal shutdown protection that prevents damage from overheating.
• Stable with Low-ESR Capacitors: The regulator is stable with output capacitors as low as 1 µF, allowing for the use of small, cost-effective capacitors.

Applications

With its low dropout performance and high power supply rejection ratio, the LP2982IMT-3.3 is suitable for a variety of applications, including:

• Mobile phones and PDAs
• Portable media players
• Wireless LAN devices
• GPS receivers
• Portable instrumentation

Package and Reliability

The LP2982IMT-3.3 is offered in a small, thermally efficient TSSOP-8 package, which is perfect for space-constrained applications. Its robust design ensures reliable operation over a wide range of temperatures, from -40°C to 125°C, making it a versatile choice for both commercial and industrial applications.

With its combination of features, the LP2982IMT-3.3 from Texas Instruments represents a highly reliable and efficient solution for designers looking to optimize power management in their portable and battery-powered devices.