Texas Instruments

LM3445MM/NOPB  

External/Internal LED Drivers

The LM3445MM/NOPB is a high-efficiency, step-down switching 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 applications:

Description:

The LM3445MM/NOPB is a monolithic step-down switching regulator that integrates a power MOSFET, a current mode controller, and other necessary components onto a single chip. It offers a highly efficient and compact solution for converting input voltages to lower, regulated output voltages.

Features:

1. High Efficiency: The LM3445MM/NOPB is designed for high efficiency, making it suitable for battery-powered applications where power consumption is critical.
2. Wide Input Voltage Range: It can handle a wide range of input voltages, making it versatile for different power supply scenarios.
3. Adjustable Output Voltage: The output voltage can be easily adjusted using external resistors, providing flexibility for different output voltage requirements.
4. Current Limiting: It features an over-current protection mechanism to prevent damage to the regulator or the load in case of excessive current draw.
5. Thermal Protection: The device includes thermal shutdown protection to prevent overheating and potential damage.
6. Small Form Factor: The LM3445MM/NOPB is available in a compact package, making it suitable for space-constrained applications.
7. Soft Start: It has a built-in soft-start feature to minimize inrush current during power-up.

Applications:

1. Portable Electronics: Due to its high efficiency and adjustable output, it is ideal for powering portable electronic devices like smartphones, tablets, and wearables.
2. Power Supplies: It can be used in battery chargers and power adapters to provide a regulated output voltage.
3. Industrial Equipment: The LM3445MM/NOPB can be used in industrial applications where a stable and efficient power supply is required.
4. Medical Devices: Its high efficiency and reliability make it suitable for use in medical devices that require a stable power supply.
5. LED Lighting: It can be used for driving LED lighting applications, providing efficient power conversion and dimming capabilities.

The LM3445MM/NOPB is a versatile and efficient step-down regulator that can be used in a wide range of applications where a stable and regulated output voltage is required. Its compact size, high efficiency, and adjustable output voltage make it a popular choice for designers looking for a reliable and space-saving power management solution.

LM3445MM/NOPB Documents

Download datasheets and manufacturer documentation for LM3445MM/NOPB

PCN Assembly/Origin :

LM3445/LM3497 MSOP Assembly and Test 14/Oct/2013      

Datasheets :

LM3445 Datasheet      

Reference Design Library :

LM3445-230VFLBK: 7.2W, 210 ~ 500mA @ 27V Max, 230V, TRIAC      

Design Resources :

Lighting Product Selector       LM3445 Design with WEBENCH® Power Designer      

Other Related Documents :

Dimming Brochure      

HTML Datasheet :

Dimming Brochure       LM3445 Datasheet      

PCN Design/Specification :

Select Devices Add Cu Alt Wire Base Metal 17/Dec/2015