LM3209TLE-G3/NOPB

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The LM3209TLE-G3/NOPB is a highly advanced DC-DC switching regulator that is designed to provide unprecedented performance, flexibility and design-in simplicity in a compact package. The device is capable of supplying up to 1.5A of output current while providing up to 5V of output voltage with a low quiescent current of just 1.9 μA.

The LM3209TLE-G3/NOPB is a synchronous buck regulator that uses a fixed frequency, current-mode architecture and is optimized for low output voltage, low droop and excellent transient response. Its advanced high-frequency synchronous topology ensures low output current ripple and allows smaller external components while offering high efficiency in a very small footprint. The device features an adjustable soft start, selectable voltage tracking and requires only a handful of components to reduce board complexity and minimize development time.

The LM3209TLE-G3/NOPB can be used in a number of applications such as servers, medical systems and consumer electronics. It is ideal for powering systems or sub-systems with multiple core or multiple-rail voltages, as it provides ultra-low quiescent current for remote power runs and no-load operation compatibility. The device can also be used for step-down, step-up and wire applications, including active power factor correction.

The working principle of the LM3209TLE-G3/NOPB is based on the Pulse Width Modulated (PWM) and operating in the continuous current mode. Its architecture uses a fixed-frequency and current-mode control scheme, which gives excellent load and line dynamics with fast transient response and precise output voltage regulation. The device is capable of adjusting its operating frequency based on the output voltage demand, in order to provide maximum efficiency over a wide load range. In order to avoid having periodic ripple without any load, the device utilizes circuit techniques to force the regulation voltage to go low during the no-load time, thus avoiding possible damages to the signal processing equipment.

The LM3209TLE-G3/NOPB features a wide input voltage range from 3V to 28V, making it suitable for a variety of applications. It also has a configurable voltage tracking and tracking error units allowing it to be used in a wide array of applications. Additionally, the device has a fixed frequency range of 200kHz to 400kHz, allowing designers to select an operating frequency that provides maximum efficiency and desired transient performance. An internal start-up circuit helps ensure a smooth power-on transition as it slowly ramps up the output voltage.

The LM3209TLE-G3/NOPB also features comprehensive protection features such as over-voltage protection, over-current protection, short-circuit protection, under-voltage lockout, thermal shutdown and current monitoring. Additionally, it features built-in hysteresis, providing superior short-circuit protection and ensuring that the output remains regulated in all operating conditions. The device also has an advanced multiphase operation mode which further enhances efficiency, by allowing multiple-load current capability.

In conclusion, the LM3209TLE-G3/NOPB is an advanced DC/DC switching regulator, featuring a wide input voltage range, configurable voltage tracking and tracking error units, fixed frequency range, over-voltage protection, over-current protection, thermal protection, current monitoring and multiple operating modes. It offers excellent performance in a compact package and makes possible the powering of systems and sub-systems with multiple core or multiple-rail voltages. Its fast transient response, precise output voltage regulation and low quiescent current makes it ideal for applications such as servers, medical systems and consumer electronics.

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