The MP3213 is a current mode step up converter with a 3.5A, 0.18O internal switch to provide a highly efficient regulator with fast response. The MP3213 operates at 700kHz or 1.3MHz allowing for easy filtering and low noise. An external compensation pin gives the user flexibility in setting loop dynamics, which allows the use of small, low ESR ceramic output capacitors. Soft-start results in small inrush current and can be programmed with an external capacitor. The MP3213 operates from an input voltage as low as 2.5V and can generate 12V at up to 500mA from a 5V supply. The MP3213 includes under-voltage lockout, current limiting and thermal overload protection to prevent damage in the event of an output overload. The MP3213 is available in a low profile 8-pin MSOP package with exposed pad.
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The EV3213DH-00A is an evaluation board for the MP3213. It is configured to provide a regulated 12V output at up to 0.5A from a 5V input. The output is adjustable from VIN up to 22V by changing resistors on the evaluation board. For an even higher output voltage, the input voltage needs to be extended higher.
The high switching frequency (700KHz or 1.3MHz) of the MP3213 allows for smaller external components, producing a compact solution for a wide range of load currents. Two user selectable frequency options offer flexibility for easy filtering and low noise. The PCB heatsink with the exposed pad improves thermal performance and efficiency at medium to heavy loads.