Micropower MOSFET Drivers

Posted on Sep 13, 2012

The LTC1155, dual micropower MOSFET driver, generates 12V from a 5V rail to fully enhance logic-level Nchannel switches with no external components required (see Figure 1). Further, the supply current is typically 85mA with the switch fully enhanced and 8mA with the LTC1155 in the standby mode (both inputs off).

This combination of low-drop N-channel MOSFET switch and micropower driver is the most efficient means of powering complex electrical loads. Switch efficiencies in the 98% to 99%+ range are easily attained with practical and economic N-channel switc

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