Analog Devices Inc.

Dual Synchronous 1.5A/1A 4MHz Step-Down DC/DC Regulator with POR Features: High Efficiency: Up to 95% 1.5A/1A Guaranteed Minimum Output Current Synchronizable to External Clock Power-On-Reset Output No Schottky Diodes Required Programmable Frequency Operation: 1.5MHz or Adjustable From 0.6MHz to 4MHz Low Ripple (< 35mVP-P) Burst Mode® Operation Low RDS(ON) Internal Switches Short-Circuit Protected VIN: 2.25V to 5.5V Current Mode Operation for Excellent Line and Load Transient Response 125μA Quiescent Current in Sleep Mode Ultralow Shutdown Current: IQ < 1μA Low Dropout Operation: 100% Duty Cycle Phase Pin Selects 2nd Channel Phase Relationship with Respect to 1st Channel Internal Soft-Start with Individual Run Pin Control Available in Small Thermally Enhanced (3mm × 5mm) DFN and 20-Lead TSSOP Packages

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