Datasheet Texas Instruments LM3481

Manufacturer	Texas Instruments
Series	LM3481

Datasheets

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Packaging

Parametrics

Parameters / Models	LM3481MM/NOPB	LM3481MMX/NOPB
Duty Cycle(Max), %	85	85
Iout(Max), A	10	10
Iq(Typ), mA	3.7	3.7
Operating Temperature Range, C	-40 to 125	-40 to 125
Package Group	VSSOP	VSSOP
Rating	Catalog	Catalog
Regulated Outputs	1	1
Special Features	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up,UVLO Adjustable	Adjustable Current Limit,Enable,Frequency Synchronization,Light Load Efficiency,Pre-Bias Start-Up,UVLO Adjustable
Switch Current Limit(Typ), A	10	10
Switching Frequency(Max), kHz	1000	1000
Switching Frequency(Min), kHz	100	100
Type	Controller	Controller
Vin(Max), V	48	48
Vin(Min), V	2.97	2.97
Vout(Max), V	500	500
Vout(Min), V	1.275	1.275

Eco Plan

Application Notes

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  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
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  Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co
  PDF, 782 Kb, File published: Jul 11, 2014
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  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
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  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.
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  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
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  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.
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  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

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Manufacturer's Classification

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