The LP2985A-25DBVRG4 is a high-performance, low-noise, low-dropout regulator from Texas Instruments, designed to maintain precise voltage regulation and stability in a variety of applications. This device is part of the LP2985 series, which is known for its exceptional performance in terms of power supply rejection ratio (PSRR), dropout voltage, and output noise, making it an ideal choice for sensitive analog circuits and RF applications.

Key Features

• Output Voltage: This regulator provides a fixed output voltage of 2.5V, which is suitable for many low-voltage electronics that require a stable power supply.
• High Accuracy: It offers a high accuracy output with a tolerance of ±0.5% at room temperature and ±1% over the full operating temperature range, ensuring reliable performance.
• Low Dropout: The LP2985A-25DBVRG4 boasts a low dropout voltage, typically 280mV at 150mA load, which allows for efficient operation even when the input voltage is close to the output voltage.
• Low Noise: It features low output noise of 30µVRMS (10Hz to 100kHz), which is crucial for sensitive RF and audio applications where noise can significantly impact performance.
• High PSRR: With a PSRR of 76dB at 1kHz, this device can suppress supply noise effectively, providing a clean and stable voltage to sensitive components.

Applications

The LP2985A-25DBVRG4 is versatile and can be used in a wide range of applications, including:

• Battery-powered devices
• Portable and handheld electronics
• RF circuits
• Audio applications
• Microcontroller power supplies
• Medical devices

Package and Quality

It comes in a small SOT-23-5 package, which is suitable for space-constrained applications. The device is also characterized for operation over an extended temperature range of −40°C to 125°C, ensuring reliable performance in a variety of environments. As with all Texas Instruments products, it meets stringent quality standards, providing engineers with confidence in their designs.