Product Overview: LP2981-28DBVTG4 from Texas Instruments

The LP2981-28DBVTG4 is a high-performance, low-dropout regulator (LDO) designed and manufactured by Texas Instruments (TI), a leader in semiconductor solutions. This micro-power device is specifically engineered to maintain a stable 2.8V output voltage with an impressive dropout voltage of only 280mV at a 100mA load. It is an ideal choice for battery-powered applications due to its low quiescent current and high accuracy.

Key Features

• Output Voltage: The LP2981-28DBVTG4 provides a fixed output voltage of 2.8V, which is suitable for a variety of low-voltage applications.
• High Accuracy: With a guaranteed output voltage accuracy of ±0.5% at room temperature and ±1% over the full temperature range, this LDO ensures reliable performance.
• Low Dropout Voltage: The device features a very low dropout voltage, making it efficient for systems where voltage margins are critical.
• Low Quiescent Current: The LP2981-28DBVTG4 consumes a low quiescent current of typically 850µA, which is advantageous for extending battery life in portable devices.
• Peak Output Current: It can deliver up to 100mA of output current, sufficient for a broad range of applications.
• Thermal Protection: The LDO includes thermal shutdown protection, preventing damage from overheating.
• Stable with Low-ESR Output Capacitors: The regulator is stable with ceramic capacitors, which are known for their low equivalent series resistance (ESR).

Applications

The LP2981-28DBVTG4 is versatile and can be used in a multitude of applications such as:

• Mobile Phones
• Handheld Instruments
• Portable Media Players
• Wireless LAN and Bluetooth Devices
• GPS Receivers

Package and Reliability

This LDO comes in a compact SOT-23-5 package, which is ideal for space-constrained applications. The LP2981-28DBVTG4 is characterized for operation over a wide temperature range of −40°C to 125°C, ensuring reliable performance in diverse environments. With its combination of features, the LP2981-28DBVTG4 from Texas Instruments is an excellent power management solution for designers looking to optimize power consumption without sacrificing performance.