Texas Instruments

LP3962ET-3.3

LP3962ET-3.3 Description

The LP3962ET-3.3 is a linear regulator designed for applications requiring a stable 3.3V output voltage with a maximum output current of 1.5A. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuits (PMIC) category and is housed in a Through Hole TO220-5 package. The device offers a fixed output voltage configuration, ensuring consistent power delivery to connected circuits. With a maximum input voltage of 7V, the LP3962ET-3.3 is suitable for a variety of low to medium voltage applications.

LP3962ET-3.3 Features

• Fixed Output Voltage: The LP3962ET-3.3 provides a stable 3.3V output, which is ideal for powering digital circuits and microcontrollers.
• High Output Current: Capable of delivering up to 1.5A, this regulator supports high-current applications, ensuring reliable power supply to demanding devices.
• Low Dropout Voltage: With a maximum dropout voltage of 0.55V at 1.5A, the LP3962ET-3.3 maintains high efficiency even under low input-to-output voltage differentials.
• Enable Control Feature: The regulator includes an enable pin, allowing for dynamic control of the output voltage, which is useful for power management and system shutdown sequences.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure robustness and reliability, safeguarding both the regulator and connected circuits from potential damage.
• Low Quiescent Current: A quiescent current of 9 mA ensures minimal power consumption during operation, making the device suitable for battery-powered applications.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the LP3962ET-3.3 is suitable for a wide range of environmental conditions, including those with high humidity.

LP3962ET-3.3 Applications

The LP3962ET-3.3 is well-suited for a variety of applications where a stable 3.3V supply is required. Key applications include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other low-voltage components in embedded systems.
• Communication Equipment: Provides reliable power to communication modules and interfaces, ensuring stable operation in networking devices.
• Industrial Control Systems: Suitable for industrial applications where robust power management and protection features are essential.
• Consumer Electronics: Can be used in consumer devices such as portable gadgets, where low dropout voltage and high efficiency are critical.

Conclusion of LP3962ET-3.3

The LP3962ET-3.3 from Texas Instruments is a versatile linear regulator designed to meet the demands of modern electronic systems. Its combination of a fixed 3.3V output, high current capability, and low dropout voltage makes it an excellent choice for a wide range of applications. The inclusion of enable control and comprehensive protection features further enhances its reliability and flexibility. Despite its obsolete status, the LP3962ET-3.3 remains a reliable option for applications requiring a stable power supply minimal with power loss and robust protection mechanisms.