Analog Devices Inc.

PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator Features: Dual Controller Operates from One to Twelve Phases Reduces Required Input Capacitance and Power Supply Induced Noise Current Mode Control Ensures Current Sharing Phase-Lockable Fixed Frequency: 150kHz to 300kHz 1.8MHz Effective Switching Frequency True Remote Sensing Differential Amplifier OPTI-LOOP™ Compensation Reduces COUT ±1% Output Voltage Accuracy Power Good Output Voltage Monitor (LTC1629-PG) Wide VIN Range: 4V to 36V Operation Very Low Dropout Operation: 99% Duty Cycle Adjustable Soft-Start Current Ramping Internal Current Foldback Plus Shutdown Timer Overvoltage Soft-Latch Eliminates Nuisance Trips Micropower Shutdown Available in 28-Lead SSOP Package

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