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LTC3855 - Multiphase Synchronous DC/DC Controller

Datasheet Summary

Description

The LTC®3855 is a dual PolyPhase® current mode synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages.

It includes a high speed differential remote sense amplifier.

Features

  • n Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n High Efficiency: Up to 95% n RSENSE or DCR Current Sensing n Programmable DCR Temperature Compensation n ±0.75% 0.6V Output Voltage Accuracy n Phase-Lockable Fixed Frequency 250kHz to 770kHz n True Remote Sensing Differential Amplifier n Dual N-Channel MOSFET Synchronous Drive n Wide VIN Range: 4.5V to 38V n VOUT Range: 0.6V to 12.5V without Differential Amplifier n VOUT Range: 0.6V to 3.3V with Di.

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Datasheet preview – LTC3855

Datasheet Details

Part number LTC3855
Manufacturer Linear Technology
File Size 2.10 MB
Description Multiphase Synchronous DC/DC Controller
Datasheet download datasheet LTC3855 Datasheet
Additional preview pages of the LTC3855 datasheet.

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Full PDF Text Transcription

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LTC3855 Dual, Multiphase Synchronous DC/DC Controller with Differential Remote Sense Features n Dual, 180° Phased Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n High Efficiency: Up to 95% n RSENSE or DCR Current Sensing n Programmable DCR Temperature Compensation n ±0.75% 0.6V Output Voltage Accuracy n Phase-Lockable Fixed Frequency 250kHz to 770kHz n True Remote Sensing Differential Amplifier n Dual N-Channel MOSFET Synchronous Drive n Wide VIN Range: 4.5V to 38V n VOUT Range: 0.6V to 12.5V without Differential Amplifier n VOUT Range: 0.6V to 3.
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