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Datasheet Linear Technology LT1941

ManufacturerLinear Technology

Triple Monolithic Switching Regulator


  • Download » Datasheet, PDF, 237 Kb, Revision: B
    LT1941 - Triple Monolithic Switching Regulator
    Docket ↓
    Triple Monolithic
    Switching Regulator
    FEATURES DESCRIPTION n The LT®1941 is a triple current mode DC/DC converter
    with internal power switches. Two of the regulators are
    step-down converters with 3A and 2A power switches.
    The third regulator can be configured as a boost, inverter
    or SEPIC converter and has a 1.5A power switch. All
    three converters are synchronized to a 1.1MHz oscillator.
    The two step-down converters run with opposite phase,
    reducing input ripple current. The output voltages are
    set with external resistor dividers and each regulator
    has independent shutdown and soft-start circuits. Each
    regulator generates a power good signal when its output
    is in regulation, easing power supply sequencing and
    interfacing with microcontrollers and DSPs. n n Wide Input Range: 3.5V to 25V
    Three Switching Regulators with Internal Power
    Switches: 3A Step-Down, 2A Step-Down,
    1.5A Inverting/Boost
    Antiphase Switching Reduces Ripple
    Independent Shutdown/Soft-Start Pins
    Independent Power Good Indicators Ease Supply
    Sequencing ...



Package CodeFEFE


Boost Switch Current, A1.51.5
Buck Output Current, A2, 32, 3
Demo BoardsDC621ADC621A
Design ToolsLTspice FileLTspice File
Export Control, yes/nonono
FeaturesAnti-Phase Switching, Power GoodAnti-Phase Switching, Power Good
LDO Output Current, AControllerController
Number of Outputs33
Operating Temperature Range, °C0 to 850 to 85
Vin Max, V2525
Vin Min, V3.33.3

Eco Plan


Moldel Line

Series: LT1941 (2)

Manufacturer's Classification

  • Power Management > Switching Regulator > SEPIC Regulators
  • Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost
  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > Multiple Output Buck | Internal Power Switch Buck | Buck Regulator Plus LDO
  • Power Management > PMIC & Multifunction > Multitopology DC/DC

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