Wednesday, August 27, 2014

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12V Step Down Dc Converter Using ADP2300 ADP2301

Using ADP2300 ADP2301 step-down dc dc regulators with integrated power MOSFET, can be designed a very simple DC DC voltage converter. Output voltage delivered by these diagram can be adjusted from 0.8 volts, up to 0.85xVin , with ±2% accuracy. The maximum output current that can be provided by ADP2300 ADP2301 regulators is up to 1.2 A load current.

12V Step-Down Dc Converter Circuit Diagram

 
12V
12V

There are two frequency options: the ADP2300 runs at 700 kHz, and the ADP2301 runs at 1.4 MHz. These options allow users to make decisions based on the trade-off between efficiency and total solution size. Current-mode control provides fast and stable line and load transient performance.  Bellow you an see two design examples, which require few common electronic components.First schema will provide a 2.5V output at a maximum current of 1.2A from an input voltage of 12 volts. Second schema will provide a 5V output at a maximum current of 1.2A from an input voltage of 12 volts.

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