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Datasheet Linear Technology LT3999

Manufacturer:Linear Technology
Series:LT3999

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

Datasheets

  • Download » Datasheet, PDF, 310 Kb, Revision: A
    LT3999 - Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control
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    LT3999
    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
    IN
    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 ...

Prices

Packaging

 LT3999EDD#PBFLT3999EDD#TRPBFLT3999EMSE#PBFLT3999EMSE#TRPBFLT3999HMSE#PBFLT3999HMSE#TRPBFLT3999IDD#PBFLT3999IDD#TRPBFLT3999IMSE#PBFLT3999IMSE#TRPBFLT3999MPMSE#PBFLT3999MPMSE#TRPBF
Package3x3 DFN-103x3 DFN-10MS-10EMS-10EMS-10EMS-10E3x3 DFN-103x3 DFN-10MS-10EMS-10EMS-10EMS-10E
Package CodeDDDDMSEMSEMSEMSEDDDDMSEMSEMSEMSE

Parametrics

 LT3999EDD#PBFLT3999EDD#TRPBFLT3999EMSE#PBFLT3999EMSE#TRPBFLT3999HMSE#PBFLT3999HMSE#TRPBFLT3999IDD#PBFLT3999IDD#TRPBFLT3999IMSE#PBFLT3999IMSE#TRPBFLT3999MPMSE#PBFLT3999MPMSE#TRPBF
Demo BoardsDC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049ADC2049A
Design ToolsLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice ModelLTspice Model
Export Control, yes/nonononononononononononono
FeaturesResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External SynchronizationResistor Set Frequency, External Synchronization
Frequency, kHz100010001000100010001000100010001000100010001000
Frequency Adjust Range50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz
Frequency Sync Range50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz50kHz - 1MHz
Integrated Inductor, yes/nonononononononononononono
Ishutdown, ВµA0.10.10.10.10.10.10.10.10.10.10.10.1
Isupply, mA4.34.34.34.34.34.34.34.34.34.34.34.3
Max Phases111111111111
Monolithic, yes/noyesyesyesyesyesyesyesyesyesyesyesyes
Number of Outputs111111111111
Operating Temperature Range, °C0 to 850 to 850 to 850 to 85-40 to 125-40 to 125-40 to 85-40 to 85-40 to 85-40 to 85-55 to 125-55 to 125
Output Current, A111111111111
Polyphase, yes/nonononononononononononono
Switch Current, A1.41.41.41.41.41.41.41.41.41.41.41.4
Synchronous, yes/nonononononononononononono
TopologyPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-PullPush-Pull
Vin Max, V363636363636363636363636
Vin Min, V2.72.72.72.72.72.72.72.72.72.72.72.7

Eco Plan

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

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