LTC3851AEMSE-1#PBF

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The LTC3851AEMSE-1#PBF is a feature-rich DC-DC switching controller designed to efficiently regulate the output voltage across a wide variety of loads. The advanced architecture provides ultra-fast transient response and excellent load regulation. With an integrated fixed frequency current mode, an internal soft-start circuit, and versatile protection features, the LTC3851AEMSE-1#PBF provides an ideal solution for a broad range of high-performance, low-noise, synchronous-rectified DC-DC switching applications.

The core of the LTC3851AEMSE-1#PBF switching controller is the advanced PFC architecture. This architecture employs two high-gain, low phase-shift, linear error amplifiers, cascaded in series with two regulated switching-regulator control loops. The first loop guarantees a well-controlled and synthesized output current, while the second loop maintains the proper output voltage by regulating the average inductor current. A fourth current loop sets the peak inductor current, ensuring maximum dynamic response.

The integrated pulse-width modulation (PWM) controller, designed to preserve input power factor and reduce the peak switch current, provides accurate and programmable frequency up to 1MHz. It also provides adjustable pulse-width modulation gain reduction, allowing the user to set the peak inductor current independently of the switching frequency. With a full range of integrated features such as power-up control, current-sensing, overvoltage protection, and short-circuit protection, the LTC3851AEMSE-1#PBF provides an excellent platform for DC-DC switching applications.

The LTC3851AEMSE-1#PBF controller has numerous applications in industrial or commercial sectors. It can also be used in automotive applications such as automotive audio systems, automotive instrumentation, and power supplies. The LTC3851AEMSE-1#PBF is versatile enough to be used in automotive, battery management, LED lighting, data acquisition, and alternative energy power systems. The controller integrates many features that improve system reliability and minimize development costs.

In summary, the LTC3851AEMSE-1#PBF is a feature-rich, PFC-based synchronous rectified DC-DC switching controller. It is ideal for high-efficiency, low-noise applications in many different industrial and commercial sectors. With its high-performance, low-noise capabilities, the LTC3851AEMSE-1#PBF is an ideal choice for a variety of synchronous rectified DC-DC converter applications.

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