Product Overview: LP2981IM5X-3.3

The LP2981IM5X-3.3 is a high-performance, low-dropout regulator (LDO) designed and manufactured by Texas Instruments. This device is specifically engineered to provide a stable and reliable power supply for low-power applications. It offers a fixed output voltage of 3.3V, which is ideal for powering sensitive electronics that require a consistent voltage level for optimal performance.

Key Features

• Low Dropout: With a very low dropout voltage, this LDO can maintain output regulation even when the supply voltage is very close to the output voltage, which is crucial for battery-operated devices.
• High Accuracy: The output voltage is precise, with a tolerance of ±0.5%, ensuring that the connected components receive a stable voltage.
• Low Quiescent Current: The LP2981IM5X-3.3 has an extremely low quiescent current, which significantly enhances battery life in portable applications.
• Thermal Shutdown and Current Limit: Built-in thermal shutdown and current limit features provide protection against excessive power dissipation and overcurrent conditions.
• Stable with Low-ESR Capacitors: This regulator is stable with ceramic capacitors that have a low equivalent series resistance (ESR), providing more flexibility in the choice of filtering capacitors.

Applications

The LP2981IM5X-3.3 is versatile and can be used in a variety of applications, including:

• Battery-powered devices
• Portable and handheld equipment
• Reference voltage sources
• PDAs and mobile phones
• Consumer electronics

Product Specifications

Parameter Value Output Voltage (V) 3.3 Dropout Voltage (Typ) 280mV @ 100mA Output Current (Max) 100mA Quiescent Current (Typ) 850μA Package/Case SOT-23-5

With its combination of features and reliability, the LP2981IM5X-3.3 from Texas Instruments is an excellent choice for designers looking for a high-quality power management solution.