The LP2985IM5-1.8 is a high-performance, low-dropout (LDO) voltage regulator from Texas Instruments, designed to provide a stable and reliable power supply for a wide range of applications. This micro-power voltage regulator is optimized for battery-powered systems and delivers a fixed output voltage of 1.8V with an impressive accuracy of ±0.8%.

Key Features

• Output Voltage: Fixed 1.8V with high accuracy.
• Output Current: Capable of delivering up to 150mA of continuous output current.
• Low Dropout: A low dropout voltage of typically 280mV at full load ensures efficient operation.
• High PSRR: High power supply rejection ratio (PSRR) of 76dB at 1kHz, which is ideal for noise-sensitive applications.
• Low Quiescent Current: Ultra-low quiescent current of 850µA during operation and 1µA in shutdown mode, making it suitable for battery-powered devices.
• Stable with Low-ESR Capacitors: Stable with ceramic capacitors as low as 1µF, providing flexibility in design.
• Thermal Protection: Built-in thermal shutdown protection safeguards the device from overheating.
• Short-Circuit Protection: Offers short-circuit protection to ensure the longevity of the device and the safety of the application.

Applications

The LP2985IM5-1.8 is suitable for a diverse range of applications, including but not limited to:

• Mobile phones and PDAs
• Portable media players
• Wireless LAN and Bluetooth® devices
• GPS receivers
• Microcontroller power supplies

Package and Quality

This voltage regulator is available in a small SOT-23-5 package, which is ideal for space-constrained applications. Texas Instruments is known for its commitment to quality, and the LP2985IM5-1.8 is no exception, meeting the stringent standards required for industrial and commercial use.

Conclusion

Overall, the LP2985IM5-1.8 from Texas Instruments is a reliable and efficient solution for applications requiring a fixed 1.8V power supply. With its low dropout, high accuracy, and low quiescent current, this LDO voltage regulator is an excellent choice for designers looking to maximize battery life while maintaining performance.