MC33680 Datasheet (ON Semiconductor)

MC33680, Dual DC-DC Regulator

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MC33680 Dual DC DC Regulator for Electronic Organizer The MC33680 is a dual DC DC regulator designed for electronic organizer applications.

Both regulators apply Pulse Frequency Modulation (PFM).

The main step up regulator output can be externally adjusted from 2.7V to 5V.

An internal synchronous rectifier is used to ensure high efficiency (achieve 87%).

The auxiliary regulator with a built in power transistor can be configured to produce a wide ra

MC33680 Features

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* LEAD LQFP FTB SUFFIX CASE 873A PIN CONNECTIONS & DEVICE MARKING NC VAUXBASE VAUXCHG VAUXBDV VAUXFBN NC VAUXFBP VAUXEN VAUXSW VAUXEMR LIBATIN LIBATOUT NC VMAINGND VMAINSW VMAIN MC33680 FTB AWLYYWW NC DGND LIBATCL LIBATON LOWBATB PORB DGND LOWBATSEN

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