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Datasheet Linear Technology LT3999IMSE#TRPBF

ManufacturerLinear Technology
Part NumberLT3999IMSE#TRPBF

Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control


  • Download » Datasheet, PDF, 310 Kb, Revision: A
    LT3999 - Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control
    Docket ↓
    Low Noise, 1A, 1MHz
    Push-Pull DC/DC Driver
    with Duty Cycle Control
    FEATURES DESCRIPTION Wide Input Operating Range: 2.7V to 36V
    n Dual 1A Switches with Programmable Current Limit
    n Programmable Switching Frequency: 50kHz to 1MHz
    n Frequency Synchronization Up to 1MHz
    n ∆V Compensation Using Duty Cycle Control
    n Low Noise Topology
    n Programmable Input Over and Undervoltage Lockout
    n Cross Conduction Prevention Circuitry
    n Programmable Soft-Start
    n Low Shutdown Current: <1ВµA
    n 10-Lead MSOP and DFN Packages The LTВ®3999 is a monolithic, high voltage, high frequency
    DC/DC transformer driver providing isolated power in a
    small solution footprint. n The LT3999 has two 1A current limited power switches
    that switch out of phase. The duty cycle is programmable
    to adjust the output voltage. The switching frequency is
    programmed up to 1MHz and can be synchronized to an
    external clock for more accurate placement of switcher
    harmonics. The input operating range is programmed ...



Package CodeMSE


Demo BoardsDC2049A
Design ToolsLTspice Model
Export Controlno yes/no
FeaturesResistor Set Frequency, External Synchronization
Frequency1000 kHz
Frequency Adjust Range50kHz - 1MHz
Frequency Sync Range50kHz - 1MHz
Integrated Inductorno yes/no
Ishutdown0.1 ВµA
Isupply4.3 mA
Max Phases1
Monolithicyes yes/no
Number of Outputs1
Operating Temperature Range-40 to 85 °C
Output Current1 A
Polyphaseno yes/no
Switch Current1.4 A
Synchronousno yes/no
Vin Max36 V
Vin Min2.7 V

Eco Plan


Moldel Line

Series: LT3999 (12)

Manufacturer's Classification

  • Power Management > Switching Regulator > Ultralow Noise Regulators | Flyback, Forward and Isolated Controllers
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators

Other Names:


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