Texas Instruments

LP3982ILD-3.3  

Linear & Switching Voltage Regulators

LP3982ILD-3.3 Description

The LP3982ILD-3.3 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a stable 3.3V output voltage with a maximum output current of 300mA. This regulator is housed in an 8-lead WSON package, making it suitable for surface-mount applications. It is designed to operate with an input voltage range up to 6V, ensuring compatibility with a variety of power sources. The regulator features a low dropout voltage of 0.22V at 200mA, which allows it to maintain regulation even when the input voltage is close to the output voltage, enhancing efficiency in low-voltage applications.

LP3982ILD-3.3 Features

• Fixed Output Voltage: The LP3982ILD-3.3 provides a stable 3.3V output, ideal for applications requiring a precise voltage supply.
• High Efficiency: With a low dropout voltage of 0.22V at 200mA, it maintains regulation efficiently, even in low-voltage scenarios.
• Low Quiescent Current: The regulator operates with a quiescent current of only 270 µA, minimizing power consumption in standby mode.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator, enabling or disabling the output as needed.
• Protection Features: The LP3982ILD-3.3 includes over-current, over-temperature, and reverse-polarity protection, ensuring robustness and reliability in various operating conditions.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the regulator is suitable for a wide range of manufacturing environments.
• Surface Mount Compatibility: The 8-lead WSON package is designed for surface-mount technology, facilitating integration into compact and high-density designs.

LP3982ILD-3.3 Applications

The LP3982ILD-3.3 is well-suited for a variety of applications where a stable 3.3V supply is required. Its low dropout voltage and high efficiency make it particularly useful in battery-powered devices, where maintaining regulation at low input voltages is crucial. The regulator's low quiescent current also makes it ideal for applications that require minimal power consumption in standby mode, such as portable electronics, IoT devices, and wearable technology. The enable control feature allows for dynamic power management, making it suitable for systems that require power-saving modes. Additionally, the protection features ensure reliability in applications exposed to varying environmental conditions.

Conclusion of LP3982ILD-3.3

The LP3982ILD-3.3 is a versatile and efficient linear voltage regulator that offers a stable 3.3V output with a maximum current of 300mA. Its low dropout voltage, low quiescent current, and enable control feature make it an ideal choice for battery-powered and low-power consumption applications. The inclusion of over-current, over-temperature, and reverse-polarity protection ensures robustness and reliability. While the product is now obsolete, its technical specifications and performance benefits make it a valuable component for existing designs and legacy systems. For new projects, designers may consider exploring alternative models from Texas Instruments that offer similar or enhanced features.

LP3982ILD-3.3 Documents

Download datasheets and manufacturer documentation for LP3982ILD-3.3

Datasheets :

LP3982 Datasheet