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.
Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.