LTC3850-1 Datasheet 2-phase Synchronous Step-down Switching Controller

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3850/LTC3850-1 Dual, 2-Phase Synchronous Step-Down Switching.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number	LTC3850-1
Manufacturer	Linear Technology (now Analog Devices)
File Size	1.12 MB
Description	2-Phase Synchronous Step-Down Switching Controller
Datasheet	LTC3850-1 LTC3850 Datasheet (PDF)

General Description

The LTC®3850 is a high performance dual synchronous step-down switching regulator controller that drives all N-channel power MOSFET stages.

A constant-frequency current mode architecture allows a phase-lockable frequency of up to 780kHz.

Power loss and supply noise are minimized by operating the two controller output stages out of phase.

Key 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 ±1% 0.8V Output Voltage Accuracy n Phase-Lockable Fixed Frequency 250kHz to 780kHz n Supports Pre-Biased Output n Dual N-Channel MOSFET Synchronous Drive n Wide VIN Range: 4V to 24V (30V for LTC3850I) Operation n Adjustable Soft-Start Current Ramping or Tracking n Foldback Output Current Limiting n Power Good Output Voltage Mon.

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More Datasheets from Linear Technology (now Analog Devices)

Part Number	Description
LTC3850-2	2-Phase Synchronous Step-Down Switching Controller
LTC3850	2-Phase Synchronous Step-Down Switching Controller
LTC3851	Synchronous Step-Down Switching Regulator Controller
LTC3851-1	Synchronous Step-Down Switching Regulator Controller
LTC3851A	Synchronous Step-Down Switching Regulator Controller
LTC3851A-1	Synchronous Step-Down Switching Regulator Controller
LTC3853	Multiphase Synchronous Step-Down Controller
LTC3855	Multiphase Synchronous DC/DC Controller
LTC3856	2-Phase Synchronous Step-Down DC/DC Controller
LTC3857	Synchronous Step-Down Controller