DC2067A

DC2067A is a demonstration circuit featuring the LT®8710 a synchronous inverting converter (CUK topology). It regulates a -5V, 6A output from a 4.5V to 28V input source, and operate at 300KHz switching frequency. The LT8710 features simple negative or positive output voltage programming. The DC2067 programs a -5V output with a single resistor. At light load, the LT8710 can operate at forced continuous conduction mode (CCM) or discontinuous conduction mode (DCM), set by its MODE pin. The DC2067A selects DCM, which maintains high efficiency at light load.

• 6A min value of maximum output current
• 25mVP-P output voltage ripple at VIN = 4.5V to 28V, IOUT = 6A (20MHz BW)
• 300KHz typical switching frequency
• 85% typ efficiency at VIN = 5V, IOUT = 6A