Datasheet Texas Instruments LM3481MMX/NOPB

ManufacturerTexas Instruments
SeriesLM3481
Part NumberLM3481MMX/NOPB
Datasheet Texas Instruments LM3481MMX/NOPB

High-Efficiency Controller for Boost, SEPIC and Flyback DC-DC Converters 10-VSSOP -40 to 125

Datasheets

LM3481 / -Q1 High-Efficiency Controller for Boost, SEPIC and Flyback DC-DC Converters datasheet
PDF, 1.5 Mb, Revision: F, File published: Nov 5, 2012
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Prices

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo

Packaging

Pin10
Package TypeDGS
Industry STD TermVSSOP
JEDEC CodeS-PDSO-G
Package QTY3500
CarrierLARGE T&R
Device MarkingSJPB
Width (mm)3
Length (mm)3
Thickness (mm)1.02
Pitch (mm).5
Max Height (mm)1.07
Mechanical DataDownload

Parametrics

Duty Cycle(Max)85 %
Iout(Max)10 A
Iq(Typ)3.7 mA
Operating Temperature Range-40 to 125 C
Package GroupVSSOP
RatingCatalog
Regulated Outputs1
Special FeaturesAdjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up,UVLO Adjustable
Switch Current Limit(Typ)10 A
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)100 kHz
TypeController
Vin(Max)48 V
Vin(Min)2.97 V
Vout(Max)500 V
Vout(Min)1.275 V

Eco Plan

RoHSCompliant

Design Kits & Evaluation Modules

  • Evaluation Modules & Boards: LM3481EVAL
    High Efficiency Boost Switching Controller Eval Board with 12 Volt Output
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: LM3481SEPICEVAL
    LM3481 SEPIC Evaluation Board
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: LM3481-FLYBACKEVM
    Isolated Flyback Topology Evaluation Module for LM3481 Boost Controller
    Lifecycle Status: Active (Recommended for new designs)

Application Notes

  • Softstart Using Constant Current Constant Voltage Approach
    PDF, 337 Kb, File published: Jul 24, 2015
    In many systems backup power is provided either by batteries or simply by a large value capacitor. Inthese applications the capacitor would only provide the current when the primary power source fails.Further, these applications are usually for light load currents. During normal operation the backupcapacitors are kept charged up by a DC/DC converter. The challenge involved in an application
  • Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co
    PDF, 782 Kb, File published: Jul 11, 2014
  • AN-1286 Compensation For The LM3478 Boost Controller (Rev. C)
    PDF, 356 Kb, Revision: C, File published: Apr 23, 2013
    The LM3478 is a low side N-Channel controller for switching regulators. Like many switching controllers,the added flexibility in component selection can cause problems for users when determining thecompensation scheme. It is the goal of this application report to present a decent groundwork to allow thereader to select with confidence the correct compensation components. To achieve this we l
  • AN-1484 Designing A SEPIC Converter (Rev. E)
    PDF, 220 Kb, Revision: E, File published: Apr 23, 2013
    In a single ended primary inductance converter (SEPIC) design, the output voltage can be higher or lowerthan the input voltage. The SEPIC converter shown in Figure 1 uses two inductors: L1 and L2. The twoinductors can be wound on the same core since the same voltages are applied to them throughout theswitching cycle.
  • Modeling & Design of Current Mode Control Boost Converters (Rev. B)
    PDF, 316 Kb, Revision: B, File published: Apr 23, 2013
    This application note presents a detail modeling and design of current mode control boost convertersoperating in the continuous conduction mode (CCM). Based on the derived small signal models, thedesign of a lag compensator for current mode control boost converters will be detailed. The LM3478 boostcontroller will be used in the example. Simulation and hardware measurement of frequency respo
  • AN-1990 Compensation for Current Mode Control SEPIC Converters (Rev. A)
    PDF, 247 Kb, Revision: A, File published: Apr 23, 2013
    This application note discusses the use of SEPIC converters in various applications.
  • LM34xx How to Design Flyback Converter with LM3481 Boost Controller
    PDF, 1.7 Mb, File published: Sep 21, 2016
    The TexasInstrumentsLM3481boostcontrolleris a versatilelow-sideN-FEThigh-performancecontrollerfor switchingregulators.Thedevicehaswiderangeof applicationssuchas automotivestart-stopapplication,one-cellor two-cellLi-ionbattery-poweredportableBluetoothaudiosystem,industrialsystemisolatedsupplies,and so forth,and supportstopologi

Model Line

Series: LM3481 (2)

Manufacturer's Classification

  • Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Up (Boost) > Boost Controller (External Switch)
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