Analog Devices International Unlimited Company

Mark William Marosek

Eric Stephen Young

Bryan Avery Legates

Bin Zhang

In some boost converter applications, an input voltage normally exceeds a regulated output voltage. The operation of the boost converter in this condition can be referred to as a pass-through operation. Using various techniques, the efficiency of a pass-through operation of a synchronous boost regulator circuit can be greatly improved. For example, a synchronous boost regulator circuit can include an input voltage Vto output voltage Vvoltage comparator that can accurately monitor the output voltage to detect the pass-through operation. In a pass-through operation, the high-side switch can be kept ON to maintain high efficiency, and the quiescent current of the regulator circuit can be minimized by setting portions of the control circuit into a sleep mode.

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Mark William Marosek