Texas Instruments

LM25576MHX/NOPB  

DC Switching Voltage Regulators

The LM25576MHX/NOPB is a high-efficiency synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide a stable and regulated output voltage from a wide range of input voltages. Here is a description of the model, its features, and applications:

Description:

The LM25576MHX/NOPB is a member of Texas Instruments' SIMPLE SWITCHER family, which is known for its high efficiency and ease of use. This device is a monolithic step-down (buck) converter that integrates a high-side and low-side MOSFET to provide a highly efficient power conversion solution. It is available in a 16-pin, 3mm x 4mm WQFN (Welded Quad Flat, No-Leads) package.

Features:

1. High Efficiency: The LM25576MHX/NOPB offers high efficiency across a wide load range, which makes it suitable for power-sensitive applications.
2. Wide Input Voltage Range: It can handle input voltages from 4V to 40V, making it versatile for different power supply scenarios.
3. Synchronous Rectification: The device uses synchronous rectification, which reduces conduction losses and improves efficiency, especially at higher input voltages and lower output voltages.
4. Low Output Voltage: It can provide an output voltage as low as 0.9V, suitable for modern low-voltage applications.
5. High Current Capability: The device is capable of delivering a high continuous output current, making it suitable for powering demanding loads.
6. Protection Features: It includes over-current protection, over-temperature protection, and thermal shutdown to safeguard the device and the system from fault conditions.
7. Small Package Size: The compact WQFN package allows for space-efficient designs in portable and compact applications.
8. Spread Spectrum Frequency Modulation: This feature helps to reduce electromagnetic interference (EMI) and improve the overall system performance.

Applications:

1. Portable Devices: Due to its high efficiency and small size, the LM25576MHX/NOPB is ideal for powering portable electronics like smartphones, tablets, and wearable devices.
2. Power Adapters: It can be used in power adapters for laptops, monitors, and other devices where efficiency and thermal management are critical.
3. Industrial Equipment: The device's robust protection features and wide input voltage range make it suitable for industrial applications where reliability is paramount.
4. Medical Devices: The LM25576MHX/NOPB can be used in battery-powered medical devices that require a stable and regulated power supply.
5. Telecommunications: It can provide power to base stations, routers, and other network equipment that require a stable power supply.

When designing with the LM25576MHX/NOPB, it is essential to carefully consider the specific requirements of the application, such as input voltage range, output voltage and current requirements, and thermal management, to ensure the device operates within its specified limits and provides the desired performance.

LM25576MHX/NOPB Documents

Download datasheets and manufacturer documentation for LM25576MHX/NOPB

Datasheets :

LM25576/Q      

Reference Design Library :

LM25576EVAL: 5V @ 3A; 7 ~ 42 V in, 80%      

Design Resources :

LM25576 Design with WEBENCH® Power Designer       LM25576 Ref Design RD-128      

HTML Datasheet :

LM25576/Q      

PCN Design/Specification :

Cu Wire 17/Jun/2016