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INTEGRATED FET SYNCHRONOUS MULTIPHASE BUCK CONVERTER WITH INNOVATIVE OSCILLATOR
INTEGRATED FET SYNCHRONOUS MULTIPHASE BUCK CONVERTER WITH INNOVATIVE OSCILLATOR
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机译:具有创新型振荡器的集成式FET同步多相降压转换器
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摘要
A power conversion system, preferably a buck converter (310, 320, 330), having an oscillator, a pulse width modulator, and a nonoverlap clock generator and level shifter, wherein the improvement comprises the elimination of an external resistor divider is described. The buck converter can convert input ranging from approximately 3 V to 5 V down to approximately 0.7-1. OV, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V without the use of resistor dividers. The voltage input identifiers select one of the possible output settings for flexibility and accuracy. The integrated field emitting transistors can provide a continuous current of at least 6 A. Additionally, peak current mode and an oscillator enable multiphase operation, up to ten buck converters, for up to 6OA output current. The multiphase operation reduces the output inductor size, and number of bulk capacitors. Moreover, the multiphase operation yields higher efficiency and provides high transient response for demanding applications.
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