LTM4616IV#PBF

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DC-DC converters are devices that convert one direct current (DC) voltage level into another. They are used in a variety of applications, including in power supplies, laptop computers, battery-charged portable devices, and other electronic equipment. The LTM4616IV#PBF is an integrated synchronous buck DC-DC converter designed for a wide range of applications, such as high density point-of-load (POL) systems. It is an ultra-high current buck converter that offers unmatched efficiency, ultra-low noise operation, and exceptional output level accuracy.

The LTM4616IV#PBF has an integrated topology that allows it to passively regulate the output voltage with no minimum or maximum load. It also includes an option that eliminates the need for an inductor current sense signal, simplifying the board layout. The integrated Buck regulator contains the inductor, switching power MOSFETs, Schottky diodes, error amplifier, and controller. This setup eliminates the need to use external components, saving board space and reducing component cost.

The LTM4616IV#PBF is an ultra-fast, ultra-efficient, and highly flexible switching buck that generates no electromagnetic interference (EMI). It operates in both current mode and voltage mode, allowing it to be used in applications with either a fixed voltage or adjustable current. The converter can operate up to 100V, with current sensing up to 50A. It also features a wide range of adjustable parameters, such as switching frequency, soft start ramp rate, on-time, and off-time.

The LTM4616IV#PBF uses a quad-cell-MOSFET and Schottky diode architecture, providing a high efficiency boost. The integrated synchronous PWM controller has a maximum efficiency rating of 95%. The converter also features internal compensation, providing an efficient, low noise operation. It includes an undervoltage lockout (UVLO) circuit that prevents the output voltage from falling below a certain level, guaranteeing that the voltage output remains within the predetermined range.

The operating principle of the LTM4616IV#PBF is based on the synchronous rectification process. When the voltage on the input of the Buck regulator is higher than the output voltage, power is supplied to the output. The Buck regulator synchronously switches MOSFETs to regulate the voltage that appears at the output. When the output voltage is higher than the input voltage, the synchronous rectifier switches to an isolation state, preventing power flowing from the output to the input.

The LTM4616IV#PBF is suitable for high power, high current applications, such as solid state drives, GPUs, FPGAs, and other Point of Load (POL) applications. It excels in providing power to small form factor applications where heat dissipation and board space are of utmost importance. High current levels, fast transient response, and wide input voltage ranges make the LTM4616IV#PBF an ideal choice for modern POL applications.

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