DC2056A

DC2056A is a demonstration circuit featuring the LTC®3637, a 76V input, 1A output DC/DC power supply. The IC operates in a high efficiency BurstMode® operation and includes an internal high side power MOSFET. The board will accept an input voltage between 4V and 76V, 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. Included on the board is an ON/OFF jumper that can also be configured as a precision undervoltage lockout. Output voltage between 800mV and VIN can be programmed using optional resistors. (Higher voltage rating output capacitors may be required).

• 1A maximum output current, IOUT at VIN = 4V to 76V, VOUT = 1.8V, 3.3V or 5V
• 85.5% typical efficiency at VIN = 12V, VOUT = 5V, IOUT = 1A
• 109mVP-P typical output ripple at VIN = 76V, VOUT = 5V, IOUT = 1A (20MHz BW)