LTC3858-1 - Dual 2-Phase Synchronous Step-Down Controller

Description

The LTC®3858-1 is a high performance dual step-down switching regulator controller that drives all N-channel synchronous power MOSFET stages.

A constant frequency current mode architecture allows a phase-lockable frequency of up to 850kHz.

n Low Operating IQ: 170μA (One Channel On) n Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24V n Wide VIN Range: 4V to 38V n RSENSE or DCR Current Sensing n Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise n OPTI-LOOP® Compensation Minimizes COUT n Phase-Lockable Frequency (75kHz-850kHz) n Programmable Fixed Frequency (50kHz-900kHz) n Selectable Continuous, Pulse-Skipping or Burst Mode® Operation at Light Loads n Very Low Dropout Operation: 99% Duty Cycle n Ad.

Linear Technology Corporation

Part number	LTC3858-1
Manufacturer	Linear Technology Corporation
File Size	428.73 KB
Description	Dual 2-Phase Synchronous Step-Down Controller
Datasheet	LTC3858-1 Datasheet
Additional preview pages of the LTC3858-1 datasheet.

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Other Datasheets by Linear Technology Corporation

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FEATURES n Low Operating IQ: 170μA (One Channel On) n Wide Output Voltage Range: 0.

Published: Aug 20, 2009 |