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DC863A-B DC863A-B评估板

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dc863a-b DC863A-B LTC3203-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output), featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. The input voltage range is from 2.7V to 5.5V. The output current can reach up to 500mA with an input voltage above 2.9V for a 4.5V output, above 3.1V for a 5V output and over the full input range for a 3.3V output. By choosing the proper operation modes, the DC863A circuit optimizes conversion efficiencies and maintains the maximum output current at each output voltage. Additionally, DC863A-B features Automatic Burst Mode operation at light load to achieve low supply current, whereas DC863A-A and DC863A-C operate in constant frequency mode to achieve low noise at the input. The built-in soft-start prevents excessive inrush current at start-up, and short-circuit current limit/thermal protection help the part survive a continuous short-circuit. DC863A-B
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