Texas Instruments

LP2985A-18DBVT

LP2985A-18DBVT Description

The LP2985A-18DBVT is a fixed-output linear voltage regulator designed by Texas Instruments, offering a stable 1.8V output with a maximum output current of 150mA. This regulator is housed in a compact SOT23-5 package, making it suitable for surface mount applications. It features a maximum input voltage of 16V and a dropout voltage of 0.58V at 150mA, ensuring efficient operation even at low input-to-output voltage differences. The regulator includes an enable control feature and offers robust protection against over-current, over-temperature, and short-circuit conditions. With a quiescent current of just 95µA and a supply current of 2.5mA, the LP2985A-18DBVT is optimized for low power consumption. Its power supply rejection ratio (PSRR) of 45dB at 1kHz ensures minimal noise in the output voltage, making it ideal for sensitive analog applications.

LP2985A-18DBVT Features

• Output Type: Fixed at 1.8V, providing a stable voltage supply.
• Input Voltage Range: Up to 16V, offering flexibility in power source selection.
• Output Current: Up to 150mA, suitable for a wide range of low-power applications.
• Dropout Voltage: Low at 0.58V @ 150mA, enhancing efficiency at low input-to-output differentials.
• Control Features: Enable control allows for easy on/off control of the regulator.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure reliability and longevity.
• Low Quiescent Current: 95µA, minimizing power consumption in standby mode.
• Low Supply Current: 2.5mA, contributing to overall system efficiency.
• High PSRR: 45dB at 1kHz, reducing noise and improving signal integrity.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various manufacturing environments.
• Mounting Type: Surface Mount, compatible with modern PCB assembly techniques.

LP2985A-18DBVT Applications

The LP2985A-18DBVT is ideal for a variety of applications where a stable, low-noise voltage supply is required. Its compact size and low dropout voltage make it particularly suitable for battery-powered devices, portable electronics, and low-power IoT devices. The enable control feature allows for dynamic power management, making it a perfect fit for systems that require power sequencing or sleep modes. The regulator's robust protection features ensure reliable operation in harsh environments, making it suitable for industrial and automotive applications. Additionally, its high PSRR and low quiescent current make it an excellent choice for precision analog circuits and sensitive instrumentation.

Conclusion of LP2985A-18DBVT

The LP2985A-18DBVT is a versatile and reliable linear voltage regulator designed for low-power applications. Its combination of a stable 1.8V output, low dropout voltage, and comprehensive protection features make it stand out in the market. The enable control and low quiescent current further enhance its suitability for battery-powered and portable devices. With its compact SOT23-5 package and surface mount compatibility, the LP2985A-18DBVT is easy to integrate into modern electronic designs. Whether for consumer electronics, industrial controls, or precision instrumentation, the LP2985A-18DBVT offers a robust and efficient power solution.