Texas Instruments

LP2981A-33DBVTG4  

Linear & Switching Voltage Regulators

LP2981A-33DBVTG4 Description

The LP2981A-33DBVTG4 is a high-performance linear voltage regulator designed by Texas Instruments, featuring a fixed output voltage of 3.3V and capable of delivering up to 100mA of output current. This regulator is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. It operates with an input voltage range up to 16V and offers a low dropout voltage of 0.37V at 100mA, ensuring efficient power delivery even at low input-to-output voltage differentials.

The LP2981A-33DBVTG4 is designed with a low quiescent current of 95 µA and a supply current of 1.7 mA, making it suitable for battery-powered and low-power consumption systems. It also features an enable control, allowing for dynamic power management and reduced power consumption during sleep modes. The regulator is equipped with over-current, over-temperature, and short-circuit protection features, ensuring robustness and reliability in various operating conditions.

LP2981A-33DBVTG4 Features

• Output Type: Fixed 3.3V output voltage.
• Input Voltage Range: Up to 16V.
• Output Current: 100mA.
• Low Dropout Voltage: 0.37V at 100mA.
• Low Quiescent Current: 95 µA.
• Supply Current: 1.7 mA.
• Enable Control: Dynamic power management.
• Protection Features: Over-current, over-temperature, and short-circuit protection.
• Package Type: SOT23-5, surface mount.
• Compliance: REACH unaffected, ROHS3 compliant, and MSL 1 (unlimited).

LP2981A-33DBVTG4 Applications

The LP2981A-33DBVTG4 is well-suited for a variety of applications where a stable and efficient power supply is required. Its low dropout voltage and low quiescent current make it ideal for battery-powered devices, portable electronics, and IoT devices. The enable control feature allows for dynamic power management, making it suitable for systems that require power-saving modes. The regulator's compact size and robust protection features make it a reliable choice for industrial and automotive applications.

Specific use cases include:

• Battery-Powered Devices: Ideal for maintaining stable power supply in low-power applications.
• Portable Electronics: Suitable for smartphones, tablets, and other portable devices requiring efficient power management.
• IoT Devices: Provides reliable power supply for sensors and communication modules in IoT applications.
• Industrial Systems: Robust protection features ensure reliability in harsh industrial environments.
• Automotive Applications: Compact size and efficient power delivery make it suitable for automotive electronics.

Conclusion of LP2981A-33DBVTG4

The LP2981A-33DBVTG4 from Texas Instruments is a versatile and efficient linear voltage regulator that offers a combination of low dropout voltage, low quiescent current, and robust protection features. Its compact SOT23-5 package and fixed 3.3V output voltage make it an excellent choice for a wide range of applications, from portable electronics to industrial systems. The enable control feature further enhances its suitability for power-sensitive applications, making it a reliable and efficient solution for modern electronic designs.

LP2981A-33DBVTG4 Documents

Download datasheets and manufacturer documentation for LP2981A-33DBVTG4

PCN Assembly/Origin :

Additional Assembly sites 21/Sep/2021      

Datasheets :

LP2981A-29DBVT