Datasheet Linear Technology LT3641

ManufacturerLinear Technology
SeriesLT3641

Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer

Datasheets

Datasheet LT3641
PDF, 452 Kb, Language: en, File uploaded: Sep 18, 2017, Pages: 28
Dual Monolithic Buck Regulator with Power-On Reset and Watchdog Timer
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Packaging

LT3641EFE#PBFLT3641EFE#TRPBFLT3641EUFD#PBFLT3641EUFD#TRPBFLT3641HFE#PBFLT3641HFE#TRPBFLT3641IFE#PBFLT3641IFE#TRPBFLT3641IUFD#PBFLT3641IUFD#TRPBF
N12345678910
PackageTSSOP-28
Package Outline Drawing
TSSOP-28
Package Outline Drawing
4x5 QFN-28
Package Outline Drawing
4x5 QFN-28
Package Outline Drawing
TSSOP-28
Package Outline Drawing
TSSOP-28
Package Outline Drawing
TSSOP-28
Package Outline Drawing
TSSOP-28
Package Outline Drawing
4x5 QFN-28
Package Outline Drawing
4x5 QFN-28
Package Outline Drawing
Package CodeFEFEUFDUFDFEFEFEFEUFDUFD
Package Index05-08-1663 (EB)05-08-1663 (EB)05-08-171205-08-171205-08-1663 (EB)05-08-1663 (EB)05-08-1663 (EB)05-08-1663 (EB)05-08-171205-08-1712
Pin Count28282828282828282828

Parametrics

Parameters / ModelsLT3641EFE#PBFLT3641EFE#TRPBFLT3641EUFD#PBFLT3641EUFD#TRPBFLT3641HFE#PBFLT3641HFE#TRPBFLT3641IFE#PBFLT3641IFE#TRPBFLT3641IUFD#PBFLT3641IUFD#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 Mode
Demo BoardsDC1727ADC1727ADC1727ADC1727ADC1727ADC1727ADC1727ADC1727ADC1727ADC1727A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Controlnononononononononono
FeaturesResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft StartResistor Set Frequency, External Synchronization, Power On Reset, Watchdog Timer, Tracking, Power Good, Soft Start
Frequency, kHz2500250025002500250025002500250025002500
Frequency Adjust Range350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz
Frequency Sync Range350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz350kHz - 2.5MHz
Integrated Inductornononononononononono
Ishutdown, µA0.10.10.10.10.10.10.10.10.10.1
Isupply, mA0.2750.2750.2750.2750.2750.2750.2750.2750.2750.275
Max Phases1111111111
Monolithicyesyesyesyesyesyesyesyesyesyes
Number of Outputs2222222222
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
Output Current, A1.31.31.31.31.31.31.31.31.31.3
Output Current 2, A1.11.11.11.11.11.11.11.11.11.1
Over Voltage Protection, V55555555555555555555
Polyphasenononononononononono
Switch Current, A2.82.82.82.82.82.82.82.82.82.8
Switch Current 2, A1.71.71.71.71.71.71.71.71.71.7
Synchronousyesyesyesyesyesyesyesyesyesyes
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 1BuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Topology 2BuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V42424242424242424242
Vin Min, V4444444444
Vout Max, V40.9740.9740.9740.9740.9740.9740.9740.9740.9740.97
Vout Maximum0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin0.97Vin
Vout Min, V1.2651.2651.2651.2651.2651.2651.2651.2651.2651.265
Vout Min 2, V0.60.60.60.60.60.60.60.60.60.6
Vref Accuracy Over Temp, %2222222222

Eco Plan

LT3641EFE#PBFLT3641EFE#TRPBFLT3641EUFD#PBFLT3641EUFD#TRPBFLT3641HFE#PBFLT3641HFE#TRPBFLT3641IFE#PBFLT3641IFE#TRPBFLT3641IUFD#PBFLT3641IUFD#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Model Line

Manufacturer's Classification

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