Texas Instruments

LP590738QDQNRQ1  

Linear & Switching Voltage Regulators

The LP590738QDQNRQ1 is a high-efficiency, step-down switching regulator from Texas Instruments. This device is designed to provide a stable and regulated output voltage from a higher input voltage source. Here's a brief description, features, and applications of the LP590738QDQNRQ1:

Description:

The LP590738QDQNRQ1 is a high-efficiency, synchronous, step-down regulator that can accept a wide range of input voltages and provide a regulated output voltage. It is available in a compact QFN package, making it suitable for space-constrained applications.

Features:

1. Input Voltage Range: The device can handle input voltages from 4.75V to 23V, making it suitable for a wide range of applications.
2. Output Voltage: The output voltage can be adjusted from 0.9V to 5.5V, providing flexibility for different output requirements.
3. High Efficiency: The LP590738QDQNRQ1 offers high efficiency, typically above 90%, depending on the input and output voltages.
4. Synchronous Rectification: The device uses synchronous rectification, which improves efficiency by reducing conduction losses in the output stage.
5. Switching Frequency: It operates at a switching frequency of up to 3MHz, allowing for smaller external components and a more compact design.
6. Protection Features: The regulator includes over-current protection, over-temperature protection, and thermal shutdown to ensure safe operation.
7. Low Quiescent Current: The device has a low quiescent current, which is beneficial for battery-powered applications.
8. Adjustable Output Current: The output current can be limited by an external resistor, allowing for customization based on the application's requirements.

Applications:

1. Portable Electronics: Due to its high efficiency and low quiescent current, the LP590738QDQNRQ1 is well-suited for battery-powered devices like smartphones, tablets, and wearables.
2. Power Supplies: It can be used in compact power supply applications, such as USB chargers and power banks.
3. Industrial Equipment: The device's wide input voltage range and adjustable output voltage make it suitable for industrial equipment that requires stable and regulated power.
4. Medical Devices: The LP590738QDQNRQ1 can be used in medical devices that require a stable power supply with low noise and high efficiency.
5. Telecommunications: It can be used in telecommunications equipment, such as routers and modems, to provide a stable power supply.
6. IoT Devices: The device's compact size and efficiency make it suitable for Internet of Things (IoT) devices that require a stable and regulated power supply.

Please note that the specific features and applications may vary depending on the device's datasheet and the requirements of the system it is being used in. Always refer to the manufacturer's datasheet for the most accurate and up-to-date information.

LP590738QDQNRQ1 Documents

Download datasheets and manufacturer documentation for LP590738QDQNRQ1

Application Notes :

LP5907-Q1 Pin FMEA (Rev. A)       LP5907-Q1 Functional Safety FIT Rate and Failure Mode Distribution