LTC3891 Datasheet (Linear Technology) - 60V Synchronous Step-Down Controller

LTC3891, 60V Synchronous Step-Down Controller

The LTC®3891 is a high performance step-down switching regulator DC/DC controller that drives an all N-channel synchronous power MOSFET stage.

A constant frequency current mode architecture allows a phase-lockable frequency of up to 750kHz.

The 50μA no-load quiescent current extends operating run ti

LTC3891 Features

* n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50μA n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n RSENSE or DCR Current Sensing n Phase-Lockable Frequency (75kHz to 750kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or Low Ripple