Datasheet Linear Technology LT3971

ManufacturerLinear Technology
SeriesLT3971

38V, 1.2A, 2MHz Step-Down Regulator with 2.8µA Quiescent Current

Datasheets

Datasheet LT3971, LT3971-3.3, LT3971-5
PDF, 643 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 28
38V, 1.2A, 2MHz Step-Down Regulator with 2.8μA Quiescent Current
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Prices

Packaging

LT3971EDD#PBFLT3971EDD#TRPBFLT3971EMSE#PBFLT3971EMSE#TRPBFLT3971EMSE16#PBFLT3971EMSE16#TRPBFLT3971IDD#PBFLT3971IDD#TRPBFLT3971IMSE#PBFLT3971IMSE#TRPBFLT3971IMSE16#PBFLT3971IMSE16#TRPBF
N123456789101112
Package3x3 DFN-10
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
MS-10E
Package Outline Drawing
MS-10E
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
MS-10E
Package Outline Drawing
MS-10E
Package Outline Drawing
MS-16E
Package Outline Drawing
MS-16E
Package Outline Drawing
Package CodeDDDDMSEMSEMSEMSEDDDDMSEMSEMSEMSE
Package Index05-08-169905-08-169905-08-166405-08-166405-08-166705-08-166705-08-169905-08-169905-08-166405-08-166405-08-166705-08-1667
Pin Count101010101616101010101616

Parametrics

Parameters / ModelsLT3971EDD#PBFLT3971EDD#TRPBFLT3971EMSE#PBFLT3971EMSE#TRPBFLT3971EMSE16#PBFLT3971EMSE16#TRPBFLT3971IDD#PBFLT3971IDD#TRPBFLT3971IMSE#PBFLT3971IMSE#TRPBFLT3971IMSE16#PBFLT3971IMSE16#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 BoardsDC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527A
Design ToolsLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD ModelLTspice File,LTpowerCAD Model
Export Controlnononononononononononono
FeaturesBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External SynchronizationBurst Mode, Resistor Set Frequency, External Synchronization
Frequency, kHz200020002000200020002000200020002000200020002000
Frequency Adjust Range200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz
Frequency Sync Range250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz
Integrated Inductornononononononononononono
Ishutdown, µA0.70.70.70.70.70.70.70.70.70.70.70.7
Isupply, mA0.00170.00170.00170.00170.00170.00170.00170.00170.00170.00170.00170.0017
Max Phases111111111111
Monolithicyesyesyesyesyesyesyesyesyesyesyesyes
Number of Outputs111111111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A1.21.21.21.21.21.21.21.21.21.21.21.2
Polyphasenononononononononononono
Switch Current, A2.42.42.42.42.42.42.42.42.42.42.42.4
Synchronousnononononononononononono
TopologyBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V383838383838383838383838
Vin Min, V4.34.34.34.34.34.34.34.34.34.34.34.3
Vout Max, V303030303030303030303030
Vout Maximum30V30V30V30V30V30V30V30V30V30V30V30V
Vout Min, V1.191.191.191.191.191.191.191.191.191.191.191.19
Vref Accuracy Over Temp, %2.12.12.12.12.12.12.12.12.12.12.12.1

Eco Plan

LT3971EDD#PBFLT3971EDD#TRPBFLT3971EMSE#PBFLT3971EMSE#TRPBFLT3971EMSE16#PBFLT3971EMSE16#TRPBFLT3971IDD#PBFLT3971IDD#TRPBFLT3971IMSE#PBFLT3971IMSE#TRPBFLT3971IMSE16#PBFLT3971IMSE16#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Other Options

LT3971-3.3 LT3971-5

Articles

  • 1.2A Buck Converters Draw Only 2.8µA When Regulating Zero Load, Accept 38VIN or 55VIN &mdash LT Journal
    PDF, 955 Kb, File published: Dec 1, 2009
    Extract from the document

Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
EMS supplier