The LP2985-18D, manufactured by NXP Semiconductors, is a high-performance, low-noise micro-power voltage regulator designed for use in battery-powered systems and other low-voltage applications. This device offers a precise output voltage of 1.8V, which is essential for providing stable power to sensitive electronics.

Key Features

• Output Voltage: The LP2985-18D provides a fixed output voltage of 1.8V, which is ideal for low-voltage operations in modern electronic devices.
• High Accuracy: With an output voltage accuracy of ±0.5%, this regulator ensures reliable performance for critical applications.
• Low Dropout: The low dropout voltage (LDO) of typically 280mV at 150mA load allows for efficient operation even when the input voltage is close to the output voltage, thereby extending battery life.
• Low Noise: This LDO regulator features a low output noise of 30µVRMS, making it suitable for noise-sensitive applications such as RF circuits and audio devices.
• High Ripple Rejection: The device provides excellent power supply ripple rejection (PSRR), which minimizes the effect of fluctuations in the input voltage on the output.
• Current Limiting and Thermal Protection: Built-in current limiting and thermal shutdown features protect the device and the load from damage due to over-current and overheating conditions.

Applications

The LP2985-18D is versatile and can be used in a wide range of applications, including:

• Portable and battery-powered electronics
• Cellular phones and PDAs
• Digital cameras and audio devices
• Wireless communication systems
• Microcontroller power supply

Package and Availability

The LP2985-18D is available in a small SOT-23 package, which is suitable for space-constrained applications. The compact form factor, coupled with the device's low-power consumption and high-performance characteristics, makes it an excellent choice for portable and miniaturized electronic systems.