Texas Instruments

LP2985-18DBVR  

Linear & Switching Voltage Regulators

The LP2985-18DBVR is a low-dropout (LDO) linear voltage regulator from Texas Instruments. It is designed to provide a stable and reliable output voltage to power various electronic devices. Here is a description of the model, its features, and applications:

Model Description:

The LP2985-18DBVR is a low-dropout linear regulator with an output voltage of 1.8V. It is available in a small VSON10 package, making it suitable for space-constrained applications. The device is designed to operate over a wide input voltage range of 2.5V to 5.5V, making it ideal for applications with varying power supply voltages.

Features:

1. Low Dropout Voltage: The LP2985-18DBVR has a low dropout voltage of 300mV under maximum load conditions, ensuring efficient power delivery even when the input voltage is close to the output voltage.

2. High PSRR: The device offers a high power supply rejection ratio (PSRR) of 80dB at 1kHz, providing excellent noise immunity and reducing the impact of input voltage fluctuations on the output voltage.

3. Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider, allowing for customization to meet specific application requirements.

4. Low Quiescent Current: The LP2985-18DBVR has a low quiescent current of 6μA (typical), which helps to minimize overall power consumption in battery-powered applications.

5. Short Circuit Protection: The device features built-in short circuit protection, which limits the output current and protects the regulator in case of a short circuit fault.

6. Thermal Shutdown: The LP2985-18DBVR includes thermal shutdown protection, which disables the output if the device temperature exceeds a predefined threshold, preventing damage due to overheating.

7. Small Package: The VSON10 package is compact, making it suitable for space-constrained applications.

Applications:

1. Portable Electronics: The LP2985-18DBVR is ideal for powering portable electronic devices such as smartphones, tablets, and wearable devices, where efficient power management and a small form factor are crucial.

2. IoT Devices: The low quiescent current and adjustable output voltage make the LP2985-18DBVR suitable for powering IoT devices, which often require precise voltage regulation and low power consumption.

3. Medical Devices: The device's stability and reliability make it suitable for use in medical devices, where consistent power supply is essential for proper operation.

4. Industrial Equipment: The LP2985-18DBVR can be used in industrial equipment where a stable and reliable power supply is required, and space is limited.

5. Automotive Applications: The wide input voltage range and low dropout voltage make the LP2985-18DBVR suitable for automotive applications, where power supply voltages can vary significantly.

In summary, the LP2985-18DBVR is a versatile and efficient low-dropout linear voltage regulator from Texas Instruments, designed to provide stable and reliable power to various electronic devices in a compact package. Its features, such as low dropout voltage, high PSRR, and adjustable output voltage, make it suitable for a wide range of applications, including portable electronics, IoT devices, medical devices, industrial equipment, and automotive applications.

LP2985-18DBVR Documents

Download datasheets and manufacturer documentation for LP2985-18DBVR

PCN Assembly/Origin :

Mult Dev A/T Chgs 30/Aug/2023      

Datasheets :

LP2985      

Design Resources :

LP2985-18 Design with WEBENCH® Power Designer      

PCN Design/Specification :

Mult Dev 06/Sep/2023