Texas Instruments

LP38691SD-5.0/NOPB  

Linear & Switching Voltage Regulators

The LP38691SD-5.0/NOPB is a high-efficiency synchronous buck converter from Texas Instruments. It is designed to provide a regulated 5V output voltage from a wide input voltage range of 4.75V to 28V. The device is available in a small, thermally-optimized QFN package, making it suitable for space-constrained applications.

Key Features:

1. Wide Input Voltage Range: The LP38691SD-5.0/NOPB can operate with an input voltage range of 4.75V to 28V, making it suitable for a wide range of applications.
2. High Efficiency: The device offers high efficiency of up to 93%, which helps to reduce power dissipation and improve overall system performance.
3. Synchronous Buck Converter: The LP38691SD-5.0/NOPB uses a synchronous buck converter topology, which allows for higher efficiency and lower output voltage ripple compared to non-synchronous buck converters.
4. Programmable Output Voltage: The output voltage can be programmed using an external resistor, allowing for customization to meet specific application requirements.
5. Thermal Protection: The device includes over-temperature protection and thermal shutdown features to ensure safe operation and prevent damage in the event of an overheat condition.
6. Small Package Size: The LP38691SD-5.0/NOPB is available in a compact QFN package, making it suitable for space-constrained applications.

Applications:

1. Portable Electronics: The LP38691SD-5.0/NOPB is ideal for powering portable electronic devices, such as smartphones, tablets, and wearables, that require a regulated 5V output voltage.
2. Industrial Equipment: The device can be used in industrial equipment, such as motor controllers and sensors, where a stable and efficient power supply is required.
3. Medical Devices: The LP38691SD-5.0/NOPB can be used in medical devices, such as hearing aids and portable medical instruments, where a regulated output voltage and high efficiency are critical.
4. Automotive Applications: The device can be used in automotive applications, such as infotainment systems and GPS devices, where a wide input voltage range and high efficiency are required.

Overall, the LP38691SD-5.0/NOPB from Texas Instruments is a versatile and efficient synchronous buck converter that can be used in a wide range of applications requiring a regulated 5V output voltage. Its small package size, high efficiency, and thermal protection features make it an ideal choice for space-constrained and power-sensitive applications.

LP38691SD-5.0/NOPB Documents

Download datasheets and manufacturer documentation for LP38691SD-5.0/NOPB

PCN Assembly/Origin :

Qualification Assembly/Test Site 27/Dec/2013      

Datasheets :

LP38691(-Q1),LP38693(-Q)      

Design Resources :

LP38691 Design with WEBENCH® Power Designer      

HTML Datasheet :

LP38691(-Q1),LP38693(-Q)      

PCN Design/Specification :

Data Sheet Chg 3/Feb/2016       Wire Base Metal 05/Oct/2016