Datasheet Linear Technology LTC3851A

ManufacturerLinear Technology
SeriesLTC3851A

Synchronous Step-Down Switching Regulator Controller

Datasheets

Datasheet LTC3851A
PDF, 445 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 30
Synchronous Step-Down Switching Regulator Controller
Extract from the document

Prices

Packaging

LTC3851AEGN#PBFLTC3851AEGN#TRPBFLTC3851AEMSE#PBFLTC3851AEMSE#TRPBFLTC3851AEUD#PBFLTC3851AEUD#TRPBFLTC3851AHMSE#PBFLTC3851AHMSE#TRPBFLTC3851AIGN#PBFLTC3851AIGN#TRPBFLTC3851AIMSE#PBFLTC3851AIMSE#TRPBFLTC3851AIUD#PBFLTC3851AIUD#TRPBFLTC3851AMPMSE#PBFLTC3851AMPMSE#TRPBF
PackageSSOP-16
Package Outline Drawing
SSOP-16
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
3x3 QFN-16
Package Outline Drawing
3x3 QFN-16
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
SSOP-16
Package Outline Drawing
SSOP-16
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
3x3 QFN-16
Package Outline Drawing
3x3 QFN-16
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
Package CodeGNGNMSEMSEUDUDMSEMSEGNGNMSEMSEUDUDMSEMSE
Package Index05-08-1641 (GN16)05-08-1641 (GN16)05-08-166705-08-166705-08-169105-08-169105-08-166705-08-166705-08-1641 (GN16)05-08-1641 (GN16)05-08-166705-08-166705-08-169105-08-169105-08-166705-08-1667
Pin Count16161616161616161616161616161616

Parametrics

Parameters / ModelsLTC3851AEGN#PBFLTC3851AEGN#TRPBFLTC3851AEMSE#PBFLTC3851AEMSE#TRPBFLTC3851AEUD#PBFLTC3851AEUD#TRPBFLTC3851AHMSE#PBFLTC3851AHMSE#TRPBFLTC3851AIGN#PBFLTC3851AIGN#TRPBFLTC3851AIMSE#PBFLTC3851AIMSE#TRPBFLTC3851AIUD#PBFLTC3851AIUD#TRPBFLTC3851AMPMSE#PBFLTC3851AMPMSE#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-ADC1432A-A
Design ToolsLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD FileLTspice File,LTpowerCAD File
Export Controlnononononononononononononononono
FeaturesDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst ModeDCR Current Sense, Resistor Set Frequency, External Synchronization, Tracking, Burst Mode
Frequency, kHz750750750750750750750750750750750750750750750750
Frequency Adjust Range250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz
Frequency Sync Range250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz
Integrated Inductornononononononononononononononono
Ishutdown, µA25252525252525252525252525252525
Isupply, mA1.21.21.21.21.21.21.21.21.21.21.21.21.21.21.21.2
Max Phases1111111111111111
Monolithicnononononononononononononononono
Number of Outputs1111111111111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 850 to 850 to 85-40 to 125-40 to 125-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-55 to 125-55 to 125
Output Current, A25252525252525252525252525252525
Polyphasenononononononononononononononono
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A25252525252525252525252525252525
Synchronousyesyesyesyesyesyesyesyesyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V38383838383838383838383838383838
Vin Min, V4444444444444444
Vout Max, V5.55.55.55.55.55.55.55.55.55.55.55.55.55.55.55.5
Vout Maximum5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V5.5V
Vout Min, V0.80.80.80.80.80.80.80.80.80.80.80.80.80.80.80.8
Vref Accuracy Over Temp, %1111111111111111

Eco Plan

LTC3851AEGN#PBFLTC3851AEGN#TRPBFLTC3851AEMSE#PBFLTC3851AEMSE#TRPBFLTC3851AEUD#PBFLTC3851AEUD#TRPBFLTC3851AHMSE#PBFLTC3851AHMSE#TRPBFLTC3851AIGN#PBFLTC3851AIGN#TRPBFLTC3851AIMSE#PBFLTC3851AIMSE#TRPBFLTC3851AIUD#PBFLTC3851AIUD#TRPBFLTC3851AMPMSE#PBFLTC3851AMPMSE#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Application Notes

  • Modeling and Loop Compensation Design of Switching Mode Power Supplies &mdash AN149
    PDF, 1.4 Mb, File published: Mar 23, 2015
    Extract from the document

Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

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