Texas Instruments

LM27402SQ/NOPB  

DC DC Switching Controllers

The Texas Instruments LM27402SQ/NOPB is a highly integrated step-down (buck) converter that offers high efficiency and low EMI performance. It is designed to provide a stable output voltage from a wide range of input voltages, making it suitable for a variety of applications.

Description:

The LM27402SQ/NOPB is a synchronous, step-down (buck) converter that can operate from input voltages ranging from 4.5V to 28V. It has a wide output voltage range of 0.9V to 20V and can deliver up to 2A of output current. The device is available in a compact, 20-pin, 3mm x 4mm QFN package.

Features:

1. High Efficiency: The LM27402SQ/NOPB offers high efficiency of up to 96%, which helps to reduce power dissipation and improve overall system performance.
2. Low EMI: The device features a proprietary modulation scheme that minimizes EMI, making it suitable for use in sensitive applications.
3. Wide Input Voltage Range: The LM27402SQ/NOPB can operate from input voltages ranging from 4.5V to 28V, making it suitable for a wide range of applications.
4. High Output Current: The device can deliver up to 2A of output current, making it suitable for powering high-current loads.
5. Small Package Size: The LM27402SQ/NOPB is available in a compact, 20-pin, 3mm x 4mm QFN package, which helps to save space on the PCB.
6. Protection Features: The device includes over-current protection, over-voltage protection, and thermal shutdown protection to ensure safe operation.

Applications:

The LM27402SQ/NOPB is suitable for a wide range of applications, including:

1. Portable Devices: The device's small size and high efficiency make it ideal for use in portable devices such as smartphones, tablets, and wearables.
2. Industrial Equipment: The LM27402SQ/NOPB can be used to power industrial equipment that requires a stable output voltage from a wide range of input voltages.
3. Medical Devices: The device's low EMI and high efficiency make it suitable for use in sensitive medical applications.
4. Automotive Applications: The LM27402SQ/NOPB can be used in automotive applications that require a stable output voltage from a wide range of input voltages.
5. Power Supplies: The device can be used as a standalone power supply or as part of a larger power management system.

In summary, the Texas Instruments LM27402SQ/NOPB is a highly integrated step-down converter that offers high efficiency, low EMI, and a wide input voltage range. Its small package size and protection features make it suitable for a wide range of applications, including portable devices, industrial equipment, medical devices, automotive applications, and power supplies.

LM27402SQ/NOPB Documents

Download datasheets and manufacturer documentation for LM27402SQ/NOPB

PCN Assembly/Origin :

Mult Dev Assembly 23/Jan/2020      

Datasheets :

LM27402      

Reference Design Library :

LM27402SQEVAL: 1.5V @ 20A, 12V in (4.5 ~ 20V)      

Design Resources :

LM27402 Design with WEBENCH® Power Designer      

HTML Datasheet :

LM27402      

PCN Design/Specification :

Cu Wire 21/Mar/2017