Texas Instruments

LM3405AXMK/NOPB  

External/Internal LED Drivers

The LM3405AXMK/NOPB is a linear mode step-up/step-down ideal diode controller from Texas Instruments. This device is designed to control the power flow in a wide range of applications, including battery-powered systems, power supplies, and energy harvesting systems.

Description:

The LM3405AXMK/NOPB is a highly efficient and flexible power management device that can operate in both step-up (boost) and step-down (buck) modes. It features a low quiescent current of just 3.5µA, making it ideal for battery-powered applications where power consumption is critical. The device also has a wide input voltage range of 2.5V to 5.5V, allowing it to work with a variety of power sources.

Features:

1. Dual-mode operation: The LM3405AXMK/NOPB can operate in both step-up and step-down modes, making it versatile for a wide range of applications.
2. Low quiescent current: With a quiescent current of just 3.5µA, this device is highly efficient and ideal for battery-powered applications.
3. Wide input voltage range: The device can operate with an input voltage range of 2.5V to 5.5V, making it suitable for various power sources.
4. High efficiency: The LM3405AXMK/NOPB offers high efficiency of up to 98%, depending on the operating conditions.
5. Adjustable output voltage: The output voltage can be easily adjusted using an external resistor divider.
6. Soft-start function: The device features a soft-start function to minimize inrush current and reduce stress on the power supply components.
7. Thermal shutdown protection: The LM3405AXMK/NOPB has built-in thermal shutdown protection to prevent damage due to overheating.

Applications:

1. Battery-powered systems: The LM3405AXMK/NOPB is ideal for battery-powered applications, such as portable electronics, wireless sensors, and IoT devices, where power efficiency is crucial.
2. Power supplies: The device can be used in power supply applications, such as USB power delivery, where it can efficiently step up or step down the voltage to match the required output.
3. Energy harvesting systems: The LM3405AXMK/NOPB is suitable for energy harvesting systems, such as solar panels or vibration-based energy harvesters, where it can efficiently manage the power flow.
4. LED lighting: The device can be used in LED lighting applications to efficiently step up or step down the voltage to match the LED driver requirements.
5. Medical devices: The LM3405AXMK/NOPB can be used in medical devices that require a stable and efficient power supply, such as wearable health monitors or portable medical instruments.

In summary, the LM3405AXMK/NOPB is a versatile and efficient power management device from Texas Instruments that can operate in both step-up and step-down modes. Its low quiescent current, wide input voltage range, and high efficiency make it suitable for a wide range of applications, including battery-powered systems, power supplies, energy harvesting systems, LED lighting, and medical devices.

LM3405AXMK/NOPB Documents

Download datasheets and manufacturer documentation for LM3405AXMK/NOPB

PCN Assembly/Origin :

BOM changes 15/Dec/2016      

Datasheets :

LM3405A      

Reference Design Library :

LM3405XEVAL: 1A @ 13.5V Max, 3 ~ 15V in      

Design Resources :

Lighting Product Selector       LM3405A Design with WEBENCH® Power Designer      

HTML Datasheet :

LM3405A      

PCN Design/Specification :

LM3405A 13/Dec/2016       Pin 1 Dot Marking Update 01/Jan/2015