LTC3857-1 Datasheet (Linear Technology) - Synchronous Step-Down Controller

LTC3857-1, Synchronous Step-Down Controller

Controller The LTC®3857-1 is a high performance dual step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages.

A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.

Power loss and noise due to the ESR of the inpu

LTC3857-1 Features

* n Low Operating IQ: 50μA (One Channel On) n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n Wide VIN Range: 4V to 38V n RSENSE or DCR Current Sensing n Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n OPTI-LOOP® Compensation Minimizes COUT n Phase-Lockable F