Datasheet Linear Technology LTC7851

ManufacturerLinear Technology
SeriesLTC7851

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

Datasheets

LTC7851/LTC7851-1 - Quad Output, Multiphase Step-Down Voltage Mode DC/DC Controller with Accurate Current Sharing
PDF, 2.1 Mb, File uploaded: Sep 24, 2017
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Prices

Packaging

LTC7851EUHH#PBFLTC7851EUHH#TRPBFLTC7851EUHH-1#PBFLTC7851EUHH-1#TRPBFLTC7851IUHH#PBFLTC7851IUHH#TRPBFLTC7851IUHH-1#PBFLTC7851IUHH-1#TRPBF
N12345678
Package5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
5x9 QFN-58
Package Outline Drawing
Package CodeUHHUHHUHHUHHUHHUHHUHHUHH
Package Index05-08-167205-08-167205-08-167205-08-167205-08-167205-08-167205-08-167205-08-1672
Pin Count5858585858585858

Parametrics

Parameters / ModelsLTC7851EUHH#PBFLTC7851EUHH#TRPBFLTC7851EUHH-1#PBFLTC7851EUHH-1#TRPBFLTC7851IUHH#PBFLTC7851IUHH#TRPBFLTC7851IUHH-1#PBFLTC7851IUHH-1#TRPBF
ArchitectureConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage ModeConstant Frequency Voltage Mode
Demo BoardsDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-CDC2380A-A,DC2380A-B,DC2380A-C
Design ToolsLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD File
Export Controlnononononononono
FeaturesPolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current SensePolyPhase, External Synchronization, Resistor Set Frequency, Differential Remote Sense, DCR Current Sense
Frequency, kHz22502250225022502250225022502250
Frequency Adjust Range250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz
Frequency Sync Range250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz250kHz - 2.25MHz
Integrated Inductornononononononono
Ishutdown, µA100100100100100100100100
Isupply, mA6060606060606060
Max Phases44444444
Monolithicnononononononono
Number of Outputs44444444
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A3030303030303030
Output Current 2, A3030303030303030
Output Current 3, A3030303030303030
Polyphaseyesyesyesyesyesyesyesyes
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A3030303030303030
Switch Current 2, A3030303030303030
Switch Current 3, A3030303030303030
Synchronousyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuck
Topology 1BuckBuckBuckBuckBuckBuckBuckBuck
Topology 2BuckBuckBuckBuckBuckBuckBuckBuck
Topology 3BuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V5.55.55.55.55.55.55.55.5
Vin Min, V33333333
Vout Max, V55555555
Vout Max 2, V55555555
Vout Max 3, V55555555
Vout Maximum5V5V5V5V5V5V5V5V
Vout Min, V0.60.60.60.60.60.60.60.6
Vout Min 2, V0.60.60.60.60.60.60.60.6
Vout Min 3, V0.60.60.60.60.60.60.60.6
Vref Accuracy Over Temp, %0.750.750.750.750.750.750.750.75

Eco Plan

LTC7851EUHH#PBFLTC7851EUHH#TRPBFLTC7851EUHH-1#PBFLTC7851EUHH-1#TRPBFLTC7851IUHH#PBFLTC7851IUHH#TRPBFLTC7851IUHH-1#PBFLTC7851IUHH-1#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | External Power Switch Buck Controllers
EMS supplier