Texas Instruments

LM5021MM-1  

AC DC Converters, Offline Switches

The LM5021MM-1 is a highly integrated, synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide efficient and stable power conversion for a wide range of applications. Here's a brief description, features, and applications of the LM5021MM-1:

Description:

The LM5021MM-1 is a high-efficiency, synchronous buck regulator featuring a 3A integrated switch and a 1A synchronous rectifier switch. It operates with an input voltage range of 4.5V to 23V and can deliver an adjustable output voltage as low as 0.9V. The device is available in a 10-pin, 3mm x 3mm WQFN package.

Features:

1. High Efficiency: The LM5021MM-1 offers high efficiency up to 93%, depending on the input voltage and output current.
2. Wide Input Voltage Range: It supports input voltages from 4.5V to 23V, making it suitable for various power supply scenarios.
3. Adjustable Output Voltage: The output voltage can be adjusted down to 0.9V, providing flexibility for different output requirements.
4. Integrated Switches: The device features a 3A integrated high-side switch and a 1A integrated synchronous rectifier switch, reducing the need for external components.
5. Small Form Factor: The 10-pin, 3mm x 3mm WQFN package allows for compact designs.
6. Programmable Soft Start: The soft-start feature can be programmed to reduce inrush current and minimize output voltage overshoot during startup.
7. Protection Features: The LM5021MM-1 includes over-current protection (OCP), over-temperature protection (OTP), and open-loop protection to ensure reliable operation.
8. Low Quiescent Current: The device has a low quiescent current of 35µA in normal operation, which helps reduce overall power consumption.

Applications:

1. Portable Electronics: The LM5021MM-1 is suitable for powering portable devices such as smartphones, tablets, and wearables.
2. Industrial Equipment: It can be used in industrial applications where efficient power conversion is required, such as in control systems and sensors.
3. Automotive Systems: The device can be used in automotive applications, such as infotainment systems and power management for various electronic modules.
4. Medical Devices: The LM5021MM-1 can be used in medical equipment that requires stable and efficient power conversion, like portable medical instruments and wearable medical devices.
5. Consumer Electronics: It can be used in various consumer electronics applications, such as power supplies for home appliances, gaming consoles, and set-top boxes.

In summary, the LM5021MM-1 is a versatile and efficient step-down regulator from Texas Instruments, suitable for a wide range of applications requiring efficient power conversion and compact form factors.

LM5021MM-1 Documents

Download datasheets and manufacturer documentation for LM5021MM-1

Datasheets :

LM5021MMX-2      

Design Resources :

Load Detecting Pwr Supply RD-166