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LTC3890 - 2-Phase Synchronous Step-Down DC/DC Controller

Description

The LTC®3890 is a high performance dual step-down switching regulator DC/DC controller that drives all N-channel synchronous power MOSFET stages.

A constant frequency current mode architecture allows a phaselockable frequency of up to 850kHz.

Features

  • n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50µA (One Channel On) n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n RSENSE or DCR Current Sensing n Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n Phase-Lockable Frequency (75kHz to 850kHz) n Programmable Fixed Frequency (50kHz to 900kHz) n Selectable Continuous, Pulse-Skipping or Low Ripple Burst Mode® Operation at Light Loads n Selectable Current Limit n Very Low Dropout Oper.

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Datasheet preview – LTC3890

Datasheet Details

Part number LTC3890
Manufacturer Linear Technology
File Size 786.22 KB
Description 2-Phase Synchronous Step-Down DC/DC Controller
Datasheet download datasheet LTC3890 Datasheet
Additional preview pages of the LTC3890 datasheet.

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Full PDF Text Transcription

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LTC3890 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller FEATURES n Wide VIN Range: 4V to 60V (65V Abs Max) n Low Operating IQ: 50µA (One Channel On) n Wide Output Voltage Range: 0.
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