Mark Scholten is a senior field applications engineer with On Semiconductor, Livonia, Mich. He received a BSEE from Purdue University, West Lafayette, Ind. Email address: Mark.Scholten@ONSemi.com
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June 8, 2006[Ideas For Design] Low-Quiescent-Current Regulator Withstands High Input Voltages
In automotive applications, more and more on-board modules need to meet stringent requirements for ignition-off current, with many modules requiring less than 100 mA of current. A controller-area network (CAN) interface IC and a microprocessor in sleep mode can easily consume half of this current, leaving little operating leeway for the power supply. On top of this, the module's power supply must withstand automotive battery voltages of 24 V ...
