LD2981CM18TR Voltage Regulator by STMicroelectronics

The LD2981CM18TR from STMicroelectronics is a highly precise and robust low drop voltage regulator designed to offer a stable output voltage with a low dropout voltage. This component is particularly suitable for battery-powered devices, where energy efficiency is crucial, and for applications that require a stable voltage supply despite varying input voltages.

Key Features

• Output Voltage: The device provides a fixed output voltage of 1.8V, which is ideal for powering low-voltage digital circuits.
• Low Dropout: With its low dropout performance, the LD2981CM18TR ensures efficient operation even when the input voltage is very close to the output voltage, minimizing power loss and heat generation.
• Current Capability: It can deliver up to 100mA of load current, making it suitable for a wide range of applications.
• High Accuracy: The output voltage is guaranteed to be within ±1% of its nominal value at 25°C, and within ±2% over the entire temperature range from -40°C to 125°C.
• Thermal Protection: The device includes thermal shutdown protection that helps prevent damage from overheating.
• Low Quiescent Current: The LD2981CM18TR features a very low quiescent current, which is beneficial for prolonging battery life in portable applications.

Applications

The LD2981CM18TR is versatile and can be used in a variety of electronic devices, including:

• Mobile phones and PDAs
• Portable media players
• Microcontrollers and digital systems
• Portable instrumentation
• Battery-powered devices

Package and Availability

The regulator is available in an SOT-23-5 package, which is suitable for space-constrained applications. The device is also provided in tape and reel packaging, making it ideal for automated assembly processes, with the suffix 'TR' indicating tape and reel packaging. For detailed specifications, application notes, and further information, customers are encouraged to visit the STMicroelectronics website or contact their sales representatives.