Datasheet Linear Technology LT3845A

ManufacturerLinear Technology
SeriesLT3845A

High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency

Datasheets

Datasheet LT3845A
PDF, 295 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 26
High Voltage Synchronous Current Mode Step-Down Controller with Adjustable Operating Frequency
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Packaging

LT3845AEFE#PBFLT3845AEFE#TRPBFLT3845AIFE#PBFLT3845AIFE#TRPBFLT3845AMPFE#PBFLT3845AMPFE#TRPBF
N123456
PackageTSSOP-16
Package Outline Drawing
TSSOP-16
Package Outline Drawing
TSSOP-16
Package Outline Drawing
TSSOP-16
Package Outline Drawing
TSSOP-16
Package Outline Drawing
TSSOP-16
Package Outline Drawing
Package CodeFEFEFEFEFEFE
Package Index05-08-1663 (BC)05-08-1663 (BC)05-08-1663 (BC)05-08-1663 (BC)05-08-1663 (BC)05-08-1663 (BC)
Pin Count161616161616

Parametrics

Parameters / ModelsLT3845AEFE#PBFLT3845AEFE#TRPBFLT3845AIFE#PBFLT3845AIFE#TRPBFLT3845AMPFE#PBFLT3845AMPFE#TRPBF
ArchitectureConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC1619ADC1619ADC1619ADC1619ADC1619ADC1619A
Design ToolsLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD Model
Export Controlnononononono
FeaturesResistor Set Frequency, External Synchronization, Burst ModeResistor Set Frequency, External Synchronization, Burst ModeResistor Set Frequency, External Synchronization, Burst ModeResistor Set Frequency, External Synchronization, Burst ModeResistor Set Frequency, External Synchronization, Burst ModeResistor Set Frequency, External Synchronization, Burst Mode
Frequency, kHz500500500500500500
Frequency Adjust Range100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz
Frequency Sync Range100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz100kHz - 500kHz
Integrated Inductornononononono
Ishutdown, µA202020202020
Isupply, mA0.120.120.120.120.120.12
Max Phases222222
Monolithicnononononono
Number of Outputs111111
Operating Temperature Range, °C0 to 850 to 85-40 to 85-40 to 85-55 to 125-55 to 125
Output Current, A151515151515
Polyphaseyesyesyesyesyesyes
Sense ResistorRsenseRsenseRsenseRsenseRsenseRsense
Switch Current, A151515151515
Synchronousyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuck
Vin Max, V606060606060
Vin Min, V444444
Vout Max, V363636363636
Vout Maximum36V36V36V36V36V36V
Vout Min, V1.2311.2311.2311.2311.2311.231
Vref Accuracy Over Temp, %1.21.21.21.21.21.2

Eco Plan

LT3845AEFE#PBFLT3845AEFE#TRPBFLT3845AIFE#PBFLT3845AIFE#TRPBFLT3845AMPFE#PBFLT3845AMPFE#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification

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