Texas Instruments

LM5045MH/NOPB  

AC DC Converters, Offline Switches

The LM5045MH/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 higher input voltage source. Here is a brief description of the model, its features, and potential applications:

Description:

The LM5045MH/NOPB is a member of the LM5045 family of regulators, which are designed for high-efficiency power conversion. This particular model is a monolithic step-down converter that can handle a wide range of input voltages and provide a regulated output voltage. It is available in a small-outline package (NOPB), which makes it suitable for space-constrained applications.

Features:

1. High Efficiency: The LM5045MH/NOPB is designed for high efficiency, which can exceed 90% under typical operating conditions. This makes it ideal for battery-powered applications where power consumption is a critical factor.

2. Wide Input Voltage Range: It can accept a wide range of input voltages, making it versatile for different power supply scenarios.

3. Synchronous Rectification: The use of synchronous rectification allows for lower power dissipation and higher efficiency, especially at higher input voltages.

4. Small Package Size: The small-outline, no-lead package (NOPB) facilitates easy integration into compact designs.

5. Thermal Protection: It includes thermal shutdown and over-temperature protection to safeguard the device and the system from overheating.

6. Soft Start: The regulator features a soft-start function to minimize inrush current during startup.

7. Adjustable Output Voltage: The output voltage can be adjusted using an external resistor network, providing flexibility for different output voltage requirements.

Applications:

1. Portable Electronics: Due to its high efficiency and wide input voltage range, the LM5045MH/NOPB is well-suited for use in portable electronic devices that run on batteries, such as smartphones, tablets, and laptops.

2. Power Supplies: It can be used in compact power supply units for a variety of electronic equipment, providing a regulated output voltage.

3. Telecommunications: In telecommunications equipment, a stable and efficient power supply is crucial, and the LM5045MH/NOPB can serve this purpose.

4. Industrial Equipment: For industrial applications where reliability and efficiency are paramount, this regulator can provide a stable power source.

5. Medical Devices: In medical equipment where precise voltage regulation is necessary, the LM5045MH/NOPB can be a suitable choice.

6. Automotive Applications: It can also be used in automotive electronics where a wide range of input voltages is common due to variations in battery charge levels.

When using the LM5045MH/NOPB or any other power management device, it is important to carefully review the datasheet and design guidelines to ensure proper operation and to meet the specific requirements of the application.

LM5045MH/NOPB Documents

Download datasheets and manufacturer documentation for LM5045MH/NOPB

Datasheets :

LM5045 Datasheet      

Reference Design Library :

LM5045EVAL: 3.3V @ 30A, 36 ~ 75V in      

HTML Datasheet :

LM5045 Datasheet