Texas Instruments

LP2985A-33DBVRE4

LP2985A-33DBVRE4 Description

The LP2985A-33DBVRE4 is a fixed-output linear regulator designed for applications requiring a stable 3.3V supply voltage with a maximum output current of 150mA. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package, making suitable it for surface-mount applications.

LP2985A-33DBVRE4 Features

• Output Type: Fixed at 3.3V, ensuring a consistent power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 16V, providing flexibility in power source selection.
• Output Current: Delivers a maximum output current of 150mA, ideal for low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.58V at 150mA, the regulator maintains efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Features a quiescent current of only 95 µA, minimizing power consumption in standby mode.
• High PSRR: Offers a power supply rejection ratio (PSRR) of 45dB at 1kHz, effectively filtering out noise from the input supply.
• Control Features: Includes an enable pin, allowing for dynamic control of the regulator's operation.
• Protection Features: Equipped with over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability.
• Compliance: The LP2985A-33DBVRE4 is REACH unaffected and RoHS3 compliant, meeting environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for a wide range of manufacturing environments.

LP2985A-33DBVRE4 Applications

The LP2985A-33DBVRE4 is ideal for a variety of applications where a stable and efficient power supply is critical. Its low dropout voltage and low quiescent current make it particularly suitable for battery-powered devices, where minimizing power loss is essential. The regulator's compact size and surface-mount package also make it a good fit for space-constrained designs, such as:

• Consumer Electronics: Portable devices, smartphones, and tablets.
• Industrial Applications: Embedded systems, sensors, and control modules.
• Medical Devices: Portable medical equipment and diagnostic tools.
• Telecommunications: Base stations, routers, and other networking equipment.

Conclusion of LP2985A-33DBVRE4

The LP2985A-33DBVRE4 from Texas Instruments is a high-performance linear regulator that offers a reliable and efficient power solution for a wide range of applications. Its fixed 3.3V output, low dropout voltage, and low quiescent current make it an excellent choice for low-power, space-constrained designs. The inclusion of advanced control and protection features further enhances its versatility and reliability. Despite its obsolete status, the LP2985A-33DBVRE4 remains a valuable component for engineers seeking a dependable power management solution.