STMicroelectronics LD2981ABU33TR

The LD2981ABU33TR is a low-dropout (LDO) voltage regulator from STMicroelectronics. It is designed to provide a stable output voltage of 3.3V. It features low quiescent current and low dropout voltage, making it suitable for battery-powered applications. Functions - Provides a regulated output voltage of 3.3V. - Delivers up to 1A of load current. - Low dropout voltage (around 300mV at full load). - Built-in thermal shutdown and current limiting protection. - Various shutdown and enable functionalities for power management. Applications - Power supply for microcontrollers and digital circuits. - Battery-powered devices (e.g., sensors, wearable technology). - Telecommunication equipment. - Automotive electronics. - Consumer electronics like smartphones and tablets. Alternative Parts - LD2985 (available in different fixed output voltages). - LM1117 (from Texas Instruments). - MIC5219 (from Microchip Technology). - MCP1825 (from Microchip Technology). - TPS7A33 (from Texas Instruments). Embedded Modules - The LD2981ABU33TR is often included in power management modules used in compact electronic systems. - It can be found in development boards that require a stable 3.3V power rail. - Used in industrial control systems, where efficient power management is key. Q&A Q1: What is the maximum output current that the LD2981ABU33TR can deliver? A1: The LD2981ABU33TR can deliver a maximum output current of up to 1A. Q2: What is the typical dropout voltage of the LD2981ABU33TR? A2: The typical dropout voltage for the LD2981ABU33TR is about 300mV at the full load current of 1A. Q3: Is the LD2981ABU33TR suitable for battery-operated devices? A3: Yes, the LD2981ABU33TR is suitable for battery-operated devices due to its low dropout voltage and low quiescent current. Q4: What protections are integrated into the LD2981ABU33TR? A4: The LD2981ABU33TR features built-in thermal shutdown and current limiting to protect against overheating and overcurrent conditions. Q5: Can I use the LD2981ABU33TR in automotive applications? A5: Yes, the LD2981ABU33TR is suitable for automotive applications due to its robust design and ability to operate over a wide temperature range.