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Chipscale Buck Regulator Integrates Double Power Monitoring

Mon, 05/05/2008 - 7:48am

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AS7620 32V step-down regulatorProvided in a 4x4-mm MLPQ 12-pin package, the AS7620 from austriamicrosystems is a hysteretic, high efficiency 32-V step-down regulator deliver both “early-power-fail” warning and “power-good“ signals for increased system reliability.  Operating with an efficiency as high as 93%, the 500-mA device accepts from 3.6 V to 32 V and  is available with a fixed 3.3-V output or an adjustable output voltage between 1.2V and VIN. A pin-selectable peak current limit optimizes inductor selection, and an integrated 100% duty-cycle extends operation in low-dropout conditions. The step-down regulator does not require compensation, and includes soft-start, current limiting, and thermal shutdown. During shutdown the current draw is reduced to only 1µA.

austriamicrosystems
+43 (0) 3136 500, www.austriamicrosystems.com

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