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Solutions Power Management Switching Regulator Step-Down (Buck) Regulators High Input Voltage Buck
Solutions DC Regulator Solutions DC-DC Voltage Regulation Step Down DC-DC Solutions (Vin > Vout)
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DC1901A - LTC3639EMSE Demo Board | Sync Buck, 4V ≤ VIN ≤ 150V, Vout = 1.8V/3.3V/5V/Adj @ 100mA

Demonstration circuit 1901A is a 150V input, 100mA output DC/DC power supply featuring the LTC3639. The IC operates in a high efficiency Burst Mode® operation and includes internal high and low side power MOSFETs. The board will accept an input voltage between 4V and 150V, and provide jumper selected output voltages of 1.8V, 3.3V, 5V and an option for additional voltages. The IC includes internal soft-start and a provision for increasing soft-start time.

DC1901A - Schematic

 

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