Product Overview: LP2981A-33DBVT

The LP2981A-33DBVT from Texas Instruments is a high-performance, low-dropout regulator designed for applications that require a low-power, stable power supply. This regulator is capable of delivering a continuous 100mA output current with an input voltage range from 2.7V to 16V. The output voltage is fixed at 3.3V, making it an ideal choice for powering 3.3V logic in a variety of electronic systems.

Key Features

• Fixed Output Voltage: This regulator provides a stable 3.3V output, which is suitable for many digital and analog circuits.
• Low Dropout: The LP2981A-33DBVT offers a low dropout voltage, typically just 280mV at full load, ensuring efficient operation even when the input voltage is close to the output voltage.
• High Accuracy: Output voltage accuracy is maintained within ±0.5% at room temperature, which is critical for sensitive electronic components.
• Low Quiescent Current: The device features a low quiescent current of typically 850µA, making it suitable for battery-powered applications.
• Thermal Shutdown and Current Limit: Built-in protection features include thermal shutdown and current limit to protect the device and the load from damage due to overheating and overcurrent conditions.
• Small Package Size: The LP2981A-33DBVT comes in a compact SOT-23-5 package, which is ideal for space-constrained applications.

Applications

The LP2981A-33DBVT is versatile and can be used in a wide range of applications, including:

• Mobile phones and PDAs
• Portable media players
• Wireless LAN and Bluetooth modules
• GPS receivers
• Microcontroller power supplies

Conclusion

With its precise voltage regulation, low dropout, and low power consumption, the LP2981A-33DBVT from Texas Instruments is an excellent choice for designers looking for a reliable power management solution that doesn't compromise on performance or space. Whether for portable devices or fixed electronic systems, this regulator provides the efficiency and stability required for today's demanding applications.