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LTC3891 - 60V Synchronous Step-Down Controller

Description

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.

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 Burst Mode® Operation at Light Load n Selectable Current Limit n Very Low Dropout Operation: 99% Duty Cycle n Adjustable Output Voltage Soft-Start or Tracking n Power Good Output Voltage Monito.

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Datasheet preview – LTC3891

Datasheet Details

Part number LTC3891
Manufacturer Linear Technology
File Size 656.28 KB
Description 60V Synchronous Step-Down Controller
Datasheet download datasheet LTC3891 Datasheet
Additional preview pages of the LTC3891 datasheet.

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Full PDF Text Transcription

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LTC3891 Low IQ, 60V Synchronous Step-Down Controller FEATURES n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50μA n Wide Output Voltage Range: 0.
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