Datasheet Summary
LTC3644/LTC3644-2
Quad 17V, 1.25A Parallelable Synchronous StepDown Regulator with Ultralow Quiescent Current
Features n Quad Step-down Outputs: 1.25A per Channel n Wide VIN Range: 2.7V to 17V n Wide VOUT Range: 0.6V to VIN n 1.25A/2.5A/3.75A/5A IOUT Configurable with
One Inductor n Integrated 300mΩ P-Channel/80mΩ N-Channel
MOSFETs Provide Up to 93% Efficiency n No-Load Burst Mode Operation IQ < 10µA with All
Channels Enabled n Constant Frequency (1MHz/2.25MHz) with ±50%
Frequency Synchronization Range n ±1% Output Voltage Accuracy n Current Mode Operation for Excellent Line and Load
Transient Response n Full Dropout Operation (100% Duty Cycle) n Phase Shift Programmable with External...