Texas Instruments

LM5122MHX/NOPB  

DC DC Switching Controllers

The LM5122MHX/NOPB is a high-efficiency synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide a stable output voltage from a higher input voltage source. Here's a brief description, features, and applications of the LM5122MHX/NOPB:

Description:

The LM5122MHX/NOPB is a monolithic, high-efficiency synchronous step-down (buck) converter that can operate from an input voltage range of 4.5V to 23V. It is capable of delivering a wide output voltage range from 0.9V to 5.5V and can provide an output current up to 3A. The device is available in a 10-pin, 3mm x 3mm WQFN package.

Features:

1. High efficiency: The LM5122MHX/NOPB offers high efficiency up to 95%, making it suitable for power-sensitive applications.
2. Wide input voltage range: It can operate from an input voltage of 4.5V to 23V, making it versatile for various power supply requirements.
3. Wide output voltage range: The output voltage can be adjusted from 0.9V to 5.5V, providing flexibility for different output voltage needs.
4. High output current: The device can deliver an output current of up to 3A, suitable for powering various loads.
5. Synchronous rectification: The LM5122MHX/NOPB uses synchronous rectification, which improves efficiency by reducing conduction losses.
6. Small form factor: The device is available in a compact 3mm x 3mm WQFN package, making it suitable for space-constrained applications.
7. Protection features: The regulator includes over-current protection, over-voltage protection, and thermal shutdown to ensure safe operation.
8. Programmable soft-start: The soft-start feature helps reduce inrush current during power-up and minimizes output voltage overshoot.

Applications:

1. Portable devices: The LM5122MHX/NOPB is suitable for powering portable electronics such as smartphones, tablets, and wearable devices.
2. Power banks: The high efficiency and wide input voltage range make it an ideal choice for power banks and USB charging applications.
3. IoT devices: The regulator can be used in Internet of Things (IoT) devices, where efficiency and small form factor are crucial.
4. Medical devices: The LM5122MHX/NOPB can be used in battery-powered medical devices that require a stable and regulated power supply.
5. Industrial equipment: The device can be used in industrial applications where a stable and efficient power supply is required.

In summary, the LM5122MHX/NOPB is a high-efficiency synchronous step-down regulator from Texas Instruments that offers a wide input voltage range, high output current, and a compact form factor. It is suitable for various applications, including portable devices, power banks, IoT devices, medical devices, and industrial equipment.

LM5122MHX/NOPB Documents

Download datasheets and manufacturer documentation for LM5122MHX/NOPB

PCN Assembly/Origin :

LM5122MHyy Assembly 07/Dec/2023      

Datasheets :

LM5122(-Q1) Datasheet      

Design Resources :

LM5122 Design with WEBENCH® Power Designer      

HTML Datasheet :

LM5122(-Q1) Datasheet      

PCN Design/Specification :

LM5122 17/Jul/2017       LM5122 Series Datasheet Update 14/Jul/2017