Datasheet Linear Technology LTC3851A-1

ManufacturerLinear Technology
SeriesLTC3851A-1

Synchronous Step-Down Switching Regulator Controller

Datasheets

Datasheet LTC3851A-1
PDF, 442 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 30
Synchronous Step-Down Switching Regulator Controller
Extract from the document

Prices

Packaging

LTC3851AEMSE-1#PBFLTC3851AEMSE-1#TRPBFLTC3851AEUD-1#PBFLTC3851AEUD-1#TRPBFLTC3851AHMSE-1#PBFLTC3851AHMSE-1#TRPBFLTC3851AIMSE-1#PBFLTC3851AIMSE-1#TRPBFLTC3851AIUD-1#PBFLTC3851AIUD-1#TRPBFLTC3851AMPMSE-1#PBFLTC3851AMPMSE-1#TRPBF
N123456789101112
PackageMS-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
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 CodeMSEMSEUDUDMSEMSEMSEMSEUDUDMSEMSE
Package Index05-08-166705-08-166705-08-169105-08-169105-08-166705-08-166705-08-166705-08-166705-08-169105-08-169105-08-166705-08-1667
Pin Count161616161616161616161616

Parametrics

Parameters / ModelsLTC3851AEMSE-1#PBFLTC3851AEMSE-1#TRPBFLTC3851AEUD-1#PBFLTC3851AEUD-1#TRPBFLTC3851AHMSE-1#PBFLTC3851AHMSE-1#TRPBFLTC3851AIMSE-1#PBFLTC3851AIMSE-1#TRPBFLTC3851AIUD-1#PBFLTC3851AIUD-1#TRPBFLTC3851AMPMSE-1#PBFLTC3851AMPMSE-1#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 Mode
Demo BoardsDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-BDC1432A-B
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 FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD FileLTspice Model,LTpowerCAD File
Export Controlnononononononononononono
FeaturesDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst ModeDCR Current Sense, Power Good, External Synchronization, Tracking, Burst Mode
Frequency, kHz750750750750750750750750750750750750
Frequency Sync Range250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz250kHz - 750kHz
Integrated Inductornononononononononononono
Ishutdown, µA252525252525252525252525
Isupply, mA111111111111
Max Phases111111111111
Monolithicnononononononononononono
Number of Outputs111111111111
Operating Temperature Range, °C0 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 85-55 to 125-55 to 125
Output Current, A252525252525252525252525
Polyphasenononononononononononono
Sense ResistorRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCRRsense, DCR
Switch Current, A252525252525252525252525
Synchronousyesyesyesyesyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V383838383838383838383838
Vin Min, V444444444444
Vout Max, V5.55.55.55.55.55.55.55.55.55.55.55.5
Vout Maximum0.80.80.80.80.80.80.80.80.80.80.80.8
Vout Min, V0.80.80.80.80.80.80.80.80.80.80.80.8
Vref Accuracy Over Temp, %111111111111

Eco Plan

LTC3851AEMSE-1#PBFLTC3851AEMSE-1#TRPBFLTC3851AEUD-1#PBFLTC3851AEUD-1#TRPBFLTC3851AHMSE-1#PBFLTC3851AHMSE-1#TRPBFLTC3851AIMSE-1#PBFLTC3851AIMSE-1#TRPBFLTC3851AIUD-1#PBFLTC3851AIUD-1#TRPBFLTC3851AMPMSE-1#PBFLTC3851AMPMSE-1#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

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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