Datasheet Linear Technology LTC3861-1

ManufacturerLinear Technology
SeriesLTC3861-1

Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing

Datasheets

Datasheet PDF, 1.3 Mb, File uploaded: Sep 24, 2017
LTC3861-1: Dual, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing Data Sheet
Docket

Prices

Packaging

LTC3861EUH-1#PBFLTC3861EUH-1#TRPBFLTC3861IUH-1#PBFLTC3861IUH-1#TRPBF
Package5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
5x5 QFN-32
Package Outline Drawing
Package CodeUHUHUHUH
Package Index05-08-169305-08-169305-08-169305-08-1693
Pin Count32323232

Parametrics

LTC3861EUH-1#PBFLTC3861EUH-1#TRPBFLTC3861IUH-1#PBFLTC3861IUH-1#TRPBF
ArchitectureConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage Mode
Design ToolsLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD ModelLTspice Model,LTpowerCAD Model
Export Controlnononono
FeaturesPolyPhase, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Soft StartPolyPhase, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Soft StartPolyPhase, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Soft StartPolyPhase, External Synchronization, Resistor Set Frequency, DCR Current Sense, Power Good, Tracking, Soft Start
Frequency, kHz2250225022502250
Frequency Adjust RangeUp to 2.25MHzUp to 2.25MHzUp to 2.25MHzUp to 2.25MHz
Frequency Sync RangeUp to 2.25MHzUp to 2.25MHzUp to 2.25MHzUp to 2.25MHz
Integrated Inductornononono
Ishutdown, µA50505050
Isupply, mA30303030
Max Phases2, 3, 4, 6, 122, 3, 4, 6, 122, 3, 4, 6, 122, 3, 4, 6, 12
Monolithicnononono
Number of Outputs2222
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85
Output Current, A40404040
Output Current 2, A40404040
Polyphaseyesyesyesyes
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A40404040
Switch Current 2, A40404040
Synchronousyesyesyesyes
TopologyBuckBuckBuckBuck
Topology 1BuckBuckBuckBuck
Topology 2BuckBuckBuckBuck
Vin Max, V24242424
Vin Min, V3333
Vout Max, V5.55.55.55.5
Vout Maximum5.5V5.5V5.5V5.5V
Vout Min, V0.60.60.60.6
Vref Accuracy Over Temp, %0.750.750.750.75

Eco Plan

LTC3861EUH-1#PBFLTC3861EUH-1#TRPBFLTC3861IUH-1#PBFLTC3861IUH-1#TRPBF
RoHSCompliantCompliantCompliantCompliant

Application Notes

Model Line

Manufacturer's Classification