FEATURES

*Wide ViN Range: 2.7V to 17V

*Wide VouT Range: 0.6V to VIN

*95% Max Efficiency

*Lowl0 :3.5pA, Zero-Current Shutdown

*Constant Frequency (1MHz/2.25MHz)

*Fixed VouT Options Available

*Low Dropout Operation (100% Duty Cycle) with Ultralow IQ

*2A Rated Output Current

*+1% 0utput Voltage Accuracy

*Current Mode Operation for Excellent Line and LoadTransient Response

*Synchronizable to External Clock

*Pulse-Skipping, Forced Continuous, Burst Mode® Operation

*Internal Compensation and Soft-Start

*Overtemperature Protection

*Compact 8-Lead DFN (3mm x 3mm) Package

DESCRIPTION

The ZCC3624/ZCC3624-2 is a high efficiency 17V, 2A synchronous monolithic step-down regulator The switch-ing frequency is fixed to 1MHz(ZCC3624)or 2.25MHz(ZCC3624-2)with a ±40% synchronization range. The regulator features ultralow quiescent current and high efficiency over a wide VouT range.

The step-down regulator operates from an input voltage range of 2.7V to 17V and provides an adjustable output range from 0.6Vto ViN while delivering up to 2A ofoutput current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency; Burst Mode operation provides the highest efficiency at lightloads,while pulse-skipping mode providestheowest voltage ripple. The MODE pin can also be used to sync the switching frequency to an external clock.

APPLICATIONS

*Battery Powered Equipment

*Portable Instrumentation

*Emergency Radios

*General Purpose Step-Down Supplies

合作洽谈：402572194（QQ）

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