Texas Instruments

LM2842XMKX-ADJL/NOPB  

DC Switching Voltage Regulators

The LM2842XMKX-ADJL/NOPB is a high-performance, adjustable output voltage, step-down (buck) switching regulator from Texas Instruments. It is designed to provide efficient and stable voltage regulation for a wide range of applications.

Description:

The LM2842XMKX-ADJL/NOPB is a monolithic, synchronous, step-down switching regulator that can accept a wide input voltage range of 4.75V to 28V. It features a fixed 1MHz switching frequency and is available in a compact 10-pin MSOP package.

Features:

1. Wide input voltage range: 4.75V to 28V
2. Adjustable output voltage: The output voltage can be set using an external resistor divider, allowing for a wide range of output voltages.
3. High efficiency: The LM2842XMKX-ADJL/NOPB offers high efficiency of up to 95%, depending on the input voltage and output current.
4. Fixed 1MHz switching frequency: This allows for the use of smaller external components, reducing the overall size of the solution.
5. Synchronous rectification: This feature minimizes conduction losses and improves efficiency, especially at higher input voltages and lower output voltages.
6. Low quiescent current: The device has a low quiescent current of 35µA, which helps to minimize power consumption during light load conditions.
7. Protection features: The LM2842XMKX-ADJL/NOPB includes over-current protection, over-temperature protection, and thermal shutdown to protect the device and the system from potential damage.

Applications:

1. Portable electronics: Due to its high efficiency and low quiescent current, the LM2842XMKX-ADJL/NOPB is well-suited for battery-powered applications such as smartphones, tablets, and wearable devices.
2. Power adapters and chargers: The wide input voltage range and adjustable output voltage make it suitable for power adapters and chargers that need to support different input voltages and provide stable output voltages.
3. LED lighting: The LM2842XMKX-ADJL/NOPB can be used to provide efficient and stable power to LED lighting systems, reducing energy consumption and improving overall system performance.
4. Industrial control systems: The device's high efficiency and wide input voltage range make it suitable for use in industrial control systems that require stable and reliable power regulation.
5. Medical equipment: The LM2842XMKX-ADJL/NOPB can be used in medical equipment that requires a stable and regulated power supply, such as portable medical devices and diagnostic equipment.

In summary, the LM2842XMKX-ADJL/NOPB is a versatile and efficient step-down switching regulator from Texas Instruments that offers a wide input voltage range, adjustable output voltage, high efficiency, and various protection features. It is suitable for a wide range of applications, including portable electronics, power adapters, LED lighting, industrial control systems, and medical equipment.

LM2842XMKX-ADJL/NOPB Documents

Download datasheets and manufacturer documentation for LM2842XMKX-ADJL/NOPB

PCN Assembly/Origin :

Wafer Fab Qualification 07/Oct/2014      

Datasheets :

LM2840-42      

Design Resources :

LM2842X Design with WEBENCH® Power Designer      

HTML Datasheet :

LM2840-42      

PCN Design/Specification :

Cu Wire 21/Mar/2017       Pin 1 Dot Marking Update 01/Jan/2015