Datasheet Linear Technology LT3971-5

ManufacturerLinear Technology
SeriesLT3971-5

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-5#PBFLT3971EDD-5#TRPBFLT3971EMSE-5#PBFLT3971EMSE-5#TRPBFLT3971IDD-5#PBFLT3971IDD-5#TRPBFLT3971IMSE-5#PBFLT3971IMSE-5#TRPBF
N12345678
Package3x3 DFN-10
Package Outline Drawing
3x3 DFN-10
Package Outline Drawing
MS-10E
Package Outline Drawing
MS-10E
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
Package CodeDDDDMSEMSEDDDDMSEMSE
Package Index05-08-169905-08-169905-08-166405-08-166405-08-169905-08-169905-08-166405-08-1664
Pin Count1010101010101010

Parametrics

Parameters / ModelsLT3971EDD-5#PBFLT3971EDD-5#TRPBFLT3971EMSE-5#PBFLT3971EMSE-5#TRPBFLT3971IDD-5#PBFLT3971IDD-5#TRPBFLT3971IMSE-5#PBFLT3971IMSE-5#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 Mode
Demo BoardsDC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527ADC1527A
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 Model
Export Controlnononononononono
FeaturesBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed OutputBurst Mode, Resistor Set Frequency, External Synchronization, Fixed Output
Frequency, kHz20002000200020002000200020002000
Frequency Adjust Range200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz200kHz - 2MHz
Frequency Sync Range250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz
Integrated Inductornononononononono
Ishutdown, µA0.70.70.70.70.70.70.70.7
Isupply, mA0.00170.00170.00170.00170.00170.00170.00170.0017
Max Phases11111111
Monolithicyesyesyesyesyesyesyesyes
Number of Outputs11111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Output Current, A1.21.21.21.21.21.21.21.2
Polyphasenononononononono
Switch Current, A2.42.42.42.42.42.42.42.4
Synchronousnononononononono
TopologyBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V3838383838383838
Vin Min, V4.34.34.34.34.34.34.34.3
Vout Max, V55555555
Vout Maximum5V5V5V5V5V5V5V5V
Vout Min, V55555555
Vref Accuracy Over Temp, %2.12.12.12.12.12.12.12.1

Eco Plan

LT3971EDD-5#PBFLT3971EDD-5#TRPBFLT3971EMSE-5#PBFLT3971EMSE-5#TRPBFLT3971IDD-5#PBFLT3971IDD-5#TRPBFLT3971IMSE-5#PBFLT3971IMSE-5#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Other Options

LT3971 LT3971 LT3971-3.3

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