Datasheet Linear Technology LT3685

ManufacturerLinear Technology
SeriesLT3685

36V, 2A, 2.4MHz Step-Down Switching Regulator

Datasheets

Datasheet LT3685
PDF, 282 Kb, Language: en, File uploaded: Sep 19, 2017, Pages: 24
36V, 2A, 2.4MHz Step-Down Switching Regulator
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Prices

Packaging

LT3685EDD#PBFLT3685EDD#TRPBFLT3685EMSE#PBFLT3685EMSE#TRPBFLT3685IDD#PBFLT3685IDD#TRPBFLT3685IMSE#PBFLT3685IMSE#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 / ModelsLT3685EDD#PBFLT3685EDD#TRPBFLT3685EMSE#PBFLT3685EMSE#TRPBFLT3685IDD#PBFLT3685IDD#TRPBFLT3685IMSE#PBFLT3685IMSE#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 BoardsDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-BDC1167A,DC1212A-B
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
FeaturesResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power GoodResistor Set Frequency, External Synchronization, Power Good
Frequency, kHz24002400240024002400240024002400
Frequency Adjust Range200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz200kHz - 2.4MHz
Frequency Sync Range250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz250kHz - 2MHz
Integrated Inductornononononononono
Ishutdown, µA1.31.31.31.31.31.31.31.3
Isupply, mA0.450.450.450.450.450.450.450.45
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, A22222222
Over Voltage Protection, V6060606060606060
Polyphasenononononononono
Switch Current, A3.73.73.73.73.73.73.73.7
Synchronousnononononononono
TopologyBuckBuckBuckBuckBuckBuckBuckBuck
Vin Max, V3636363636363636
Vin Min, V3.63.63.63.63.63.63.63.6
Vout Max, V2020202020202020
Vout Maximum20V20V20V20V20V20V20V20V
Vout Min, V0.790.790.790.790.790.790.790.79
Vref Accuracy Over Temp, %1.91.91.91.91.91.91.91.9

Eco Plan

LT3685EDD#PBFLT3685EDD#TRPBFLT3685EMSE#PBFLT3685EMSE#TRPBFLT3685IDD#PBFLT3685IDD#TRPBFLT3685IMSE#PBFLT3685IMSE#TRPBF
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Application Notes

  • 2-Wire Virtual Remote Sensing for Voltage Regulators - Clairvoyance Marries Remote Sensing &mdash AN126
    PDF, 1.4 Mb, File published: Oct 1, 2010
    Wires and connectors have resistance. This simple, unavoidable truth dictates that a power source’s remote load voltage will be less than the source’s output voltage. Traditional methods for countering this include increasing the power source voltage and "4-wire" remote voltage sensing. Both have limitations. A new IC based approach achieves "virtual" remote sensing at the load without adding the usual two extra sense wires. Numerous circuit examples show the IC working with various voltage regulators and remote loads. Appendices detail IC internal operation and design guidelines for applying the part in any regulator circuit.
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Model Line

Manufacturer's Classification

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck
EMS supplier