Description

Dual 4MHz, 3A Synchronous Step-Down DC/DC Converter Features: High Efficiency: Up to 94% Dual Outputs with 2 × 3A Output Current Capability Low Output Ripple Burst Mode® Operation: IQ = 130μA 2.25V to 5.5V Input Voltage Range ±1% Output Voltage Accuracy Output Voltages Down to 0.6V Programmable Slew Rate at Switch Pins Low Dropout Operation: 100% Duty Cycle Shutdown Current ≤1μA Adjustable Switching Frequency Up to 4MHz Internal or External Compensation Selectable Pulse-Skipping/Forced Continuous/ Burst Mode Operation with Adjustable Burst Clamp Optional Active Voltage Positioning (AVP) with Internal Compensation Selectable 0°/90°/180° (LTC3615) or selectable 140°/180° (LTC3615-1) Phase Shift Between Channels Fixed Internal and Programmable External Soft-Start Accurate Start-Up Tracking Capability DDR Memory Mode IOUT = ±1.5A Available in 4mm × 4mm QFN-24 and eTSSOP-24 Packages