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Datasheet Linear Technology LTC3872

ManufacturerLinear Technology
SeriesLTC3872

No RSENSE Current Mode Boost DC/DC Controller

Datasheets

  • Download » Datasheet, PDF, 257 Kb, Revision: C
    LTC3872 - No RSENSE Current Mode Boost DC/DC Controller
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    LTC3872
    No RSENSE
    Current Mode Boost
    DC/DC Controller
    Features Description No Current Sense Resistor Required
    n V
    OUT up to 60V
    n Constant Frequency 550kHz Operatio Internal Soft-Start and Optional External Soft-Start
    n Adjustable Current Limit
    n Pulse Skipping at Light Load
    n V Range: 2.75V to 9.8V
    IN
    n В±1.5% Voltage Reference Accuracy
    n Current Mode Operation for Excellent Line and Load
    Transient Response
    n Low Profile (1mm) SOT-23 and 2mm Г— 3mm DFN
    Packages The LTCВ®3872 is a constant frequency current mode
    boost DC/DC controller that drives an N-channel power
    MOSFET and requires very few external components. The
    No RSENSETM architecture eliminates the need for a sense
    resistor, improves efficiency and saves board space. n Applications n n n n The LTC3872 provides excellent AC and DC load and line
    regulation with В±1.5% output voltage accuracy. It incorporates an undervoltage lockout feature that shuts down
    the device when the input voltage falls below 2.3V. ...

Prices

Packaging

LTC3872EDDB#PBFLTC3872EDDB#TRMPBFLTC3872EDDB#TRPBFLTC3872ETS8#PBFLTC3872ETS8#TRMPBFLTC3872ETS8#TRPBFLTC3872HDDB#PBFLTC3872HDDB#TRMPBFLTC3872HDDB#TRPBFLTC3872HTS8#PBFLTC3872HTS8#TRMPBFLTC3872HTS8#TRPBFLTC3872IDDB#PBFLTC3872IDDB#TRMPBFLTC3872IDDB#TRPBFLTC3872ITS8#PBFLTC3872ITS8#TRMPBFLTC3872ITS8#TRPBF
Package3x2 DFN-83x2 DFN-83x2 DFN-8SOT-23SOT-23SOT-233x2 DFN-83x2 DFN-83x2 DFN-8SOT-23SOT-23SOT-233x2 DFN-83x2 DFN-83x2 DFN-8SOT-23SOT-23SOT-23
Package CodeDDBDDBDDBTS8TS8TS8DDBDDBDDBTS8TS8TS8DDBDDBDDBTS8TS8TS8

Parametrics

LTC3872EDDB#PBFLTC3872EDDB#TRMPBFLTC3872EDDB#TRPBFLTC3872ETS8#PBFLTC3872ETS8#TRMPBFLTC3872ETS8#TRPBFLTC3872HDDB#PBFLTC3872HDDB#TRMPBFLTC3872HDDB#TRPBFLTC3872HTS8#PBFLTC3872HTS8#TRMPBFLTC3872HTS8#TRPBFLTC3872IDDB#PBFLTC3872IDDB#TRMPBFLTC3872IDDB#TRPBFLTC3872ITS8#PBFLTC3872ITS8#TRMPBFLTC3872ITS8#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 ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-ADC989B-A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice FileLTspice File
Export Control, yes/nonononononononononononononononononono
FeaturesNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo RsenseNo Rsense
Frequency, kHz750750750750750750750750750750750750750750750750750750
Integrated Inductor, yes/nonononononononononononononononononono
Ishutdown, ВµA888888888888888888
Isupply, mA0.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.250.25
Max Phases111111111111111111
Monolithic, yes/nonononononononononononononononononono
Number of Outputs111111111111111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 850 to 850 to 85-40 to 125-40 to 125-40 to 125-40 to 125-40 to 125-40 to 125-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85-40 to 85
Polyphase, yes/nonononononononononononononononononono
Sense ResistorNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNone
Switch Current, A101010101010101010101010101010101010
Synchronous, yes/nonononononononononononononononononono
TopologyBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, Flyback
Topology 1Boost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, FlybackBoost, Sepic, Flyback
Vin Max, V9.89.89.89.89.89.89.89.89.89.89.89.89.89.89.89.89.89.8
Vin Min, V2.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.75
Vin Min Startup, V2.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.752.75
Vout Max, V606060606060606060606060606060606060
Vout Maximum60V60V60V60V60V60V60V60V60V60V60V60V60V60V60V60V60V60V
Vout Min, V1.21.21.21.21.21.21.21.21.21.21.21.21.21.21.21.21.21.2
Vswitch Max, V606060606060606060606060606060606060

Eco Plan

Moldel Line

Series: LTC3872 (18)

Manufacturer's Classification

  • Power Management > Switching Regulator > SEPIC Regulators
  • Power Management > Switching Regulator > Step-Up (Boost) Regulators > External Power Switch Boost
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

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