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LTC3874-1 Datasheet Polyphase Step-down Synchronous Slave Controller

Manufacturer: Analog Devices

Overview: LTC3874-1 PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR.

General Description

The LTC®3874-1 is a dual PolyPhase® current mode synchronous step-down slave controller.

It enables high current, multiphase applications when paired with a companion master controller by extending the phase count.

Compatible master controllers include the LTC3884-1, LTC3774, LTC3875, LTC3877 and LTC3866.

Key Features

  • n Phase Extender for High Phase Count Voltage Rails n Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs n Accurate Phase-to-Phase Current Sharing n Sub-Milliohm DCR Current Sensing n Phase-Lockable Fixed Frequency 250kHz to 1MHz n Immediate Response to Master IC's Fault n Up to 12-Phase Operation n Wide VIN Range: 4.5 to 38V n VOUT Range : Up to 3.5V (LOWDCR Pin High) Up to 5.5V (LOWDCR Pin Low) n Proprietary Current Mode Control Loop n Programmable CCM/DCM Operation n Progr.

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