Product Overview: Texas Instruments LP2985A-33DBVT

The Texas Instruments LP2985A-33DBVT is a high-performance, micro-power, low-noise, low-dropout (LDO) linear voltage regulator that is capable of delivering a continuous 150 mA output current. Designed to meet the requirements of battery-powered electronics, this regulator offers an optimal combination of low dropout voltage and low quiescent current, making it an excellent choice for extending battery life in portable devices.

Key Features

• Output Voltage: This device provides a fixed output voltage of 3.3V, which is suitable for a wide range of low-voltage electronics, including microcontrollers and digital logic circuits.
• High Accuracy: The output voltage is precise, with a tolerance of ±0.5%, ensuring reliable and consistent performance for sensitive applications.
• Low Dropout Voltage: The LP2985A-33DBVT boasts a low dropout voltage of typically 280 mV at full load, allowing for efficient operation even when the supply voltage is close to the output voltage.
• Low Noise: With a low output noise of 30 µV RMS, this LDO is ideal for RF and other noise-sensitive applications.
• High Ripple Rejection: It offers an excellent ripple rejection ratio of 70 dB at 1 kHz, minimizing the impact of supply noise on the output.
• Fast Transient Response: The device responds quickly to changes in load, providing stable performance under dynamic conditions.
• Thermal Protection: The regulator includes built-in thermal shutdown and current limit features to protect against overcurrent and overheating conditions.

Applications

The LP2985A-33DBVT is suitable for a diverse range of applications, including:

• Battery-powered devices
• Portable media players
• Handheld instruments
• Mobile phones
• Wireless LAN cards
• Reference voltage sources

Package and Availability

Encased in a compact SOT-23-5 package, the LP2985A-33DBVT is designed for space-constrained applications. This product is available for order and can be sourced directly from Texas Instruments or through authorized distributors.