The LP3984ITPX-1.8/NOPB is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments, designed to deliver a fixed output voltage of 1.8V with an input voltage range from 2.5V to 6V. This regulator is particularly suitable for battery-powered devices, such as mobile phones, PDAs, and handheld instruments, due to its low power consumption and small footprint.

Key Features

• Output Voltage: Provides a stable 1.8V output, which is ideal for powering low-voltage digital circuits and microprocessors.
• High Accuracy: Maintains tight regulation with a precision output voltage tolerance of ±0.5%, ensuring reliable operation of sensitive electronic components.
• Low Dropout: Features a low dropout voltage, typically just 280mV at 300mA load, which enhances efficiency and allows operation over a wider range of input voltages.
• High Output Current: Capable of delivering up to 300mA of continuous output current, making it suitable for a variety of applications.
• Thermal Protection: Integrated thermal shutdown protection safeguards the device against overheating, enhancing system reliability.
• Low Quiescent Current: Exhibits an extremely low quiescent current of 90μA during operation and 1μA in shutdown mode, contributing to extended battery life in portable applications.
• Fast Transient Response: Offers a fast transient response, which is critical for maintaining voltage stability during rapid load changes.
• Noise Reduction: An optional bypass capacitor can be added to reduce output noise, making it suitable for RF and precision analog applications.
• Packaging: Available in a space-saving 5-pin SOT-23 package, ideal for compact PCB layouts.

Applications

The LP3984ITPX-1.8/NOPB LDO voltage regulator finds applications in a variety of electronic systems where efficient power management is crucial. Its low noise characteristics and high power supply rejection ratio (PSRR) make it an excellent choice for RF and sensitive analog circuits, while its low power consumption and small size are perfect for portable and battery-operated devices.

Environmental and Quality

This product is part of Texas Instruments' "Green" product initiative and is available in a lead-free, RoHS-compliant package. It also carries the NOPB (no lead (Pb)) suffix, indicating that it is manufactured without the use of lead, making it suitable for environmentally sensitive applications.