Electronic Design
Step-Down Regulator Cruises On Low Quiescent Current

Step-Down Regulator Cruises On Low Quiescent Current

Consuming a typical quiescent current of 25 µA, the FAN5358 2-MHz synchronous buck regulator delivers up to 500 mA of output while maintaining an efficiency of over 80% at load currents as low as 1 mA. At moderate and light loads, it relies on pulse frequency modulation to operate in power-save mode. The FAN5358 is available in a six-lead SC70 package. Pricing is $0.39 each/1,000. FAIRCHILD SEMICONDUCTOR, San Jose, CA. (800) 341-0392.

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