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LM3411AM5-3.3 |LM3411AM533NSN/a9000avaiPrecision Secondary Regulator/Driver
LM3411AM5X-3.3 |LM3411AM5X33NSN/a36000avaiPrecision Secondary Regulator/Driver
LM3411AM5X-5.0 |LM3411AM5X50NSN/a795avaiPrecision Secondary Regulator/Driver
LM3411M5-3.3 |LM3411M533NSCN/a1200avaiPrecision Secondary Regulator/Driver
LM3411M5-3.3 |LM3411M533NSN/a1842avaiPrecision Secondary Regulator/Driver
LM3411M5X-3.3 |LM3411M5X33NSN/a30000avaiPrecision Secondary Regulator/Driver
LM3411M5X-5.0 |LM3411M5X50NS国半N/a33000avaiPrecision Secondary Regulator/Driver


LM3411AM5X-3.3 ,Precision Secondary Regulator/DriverFeaturestor.n Fixed voltages of 3.3V and 5.0V with initial tolerance ofThe LM3411 circuitry include ..
LM3411AM5X-5.0 ,Precision Secondary Regulator/DriverApplicationscapable of driving up to 15 mA of load current.n Secondary controller for isolated DC/D ..
LM3411M5-3.3 ,Precision Secondary Regulator/DriverLM3411 Precision Secondary Regulator/DriverJuly 2000LM3411Precision Secondary Regulator/Driverother ..
LM3411M5-3.3 ,Precision Secondary Regulator/DriverapplicationsAlthough its main application is to provide a precision outputn Use with many types of ..
LM3411M5X-3.3 ,Precision Secondary Regulator/DriverFeaturestor.n Fixed voltages of 3.3V and 5.0V with initial tolerance ofThe LM3411 circuitry include ..
LM3411M5X-5.0 ,Precision Secondary Regulator/DriverGeneral Descriptionprovide a precision output voltage without precision resistorsThe LM3411 is a lo ..
LMP2011MA ,Single, High Precision, Rail-to-Rail Output Operational AmplifierFeaturesTheLMP201xseriesarethefirstmembersofNational’snew (For V = 5V, Typical unless otherwise not ..
LMP2011MF ,Single, High Precision, Rail-to-Rail Output Operational AmplifierFeaturesTheLMP201xseriesarethefirstmembersofNational’snew (For V = 5V, Typical unless otherwise not ..
LMP2011MFX ,Single, High Precision, Rail-to-Rail Output Operational AmplifierApplicationsOther useful benefits of the LMP201X are rail-to-rail output,n Precision instrumentatio ..
LMP2012MM ,Dual, High Precision, Rail-to-Rail Output Operational Amplifier [Preliminary]LMP2011 Single/ LMP2012 Dual Quad High Precision, Rail-to-Rail Output Operational AmplifierMarch 20 ..
LMP2012MM/NOPB ,Dual, High Precision, Rail-to-Rail Output Operational Amplifier 8-VSSOP -40 to 125Features 3 DescriptionThe LMP201x series are the first members of TI's1(For V = 5 V, Typical Unless ..
LMP2012MMX ,Dual, High Precision, Rail-to-Rail Output Operational Amplifier [Preliminary]ApplicationsOther useful benefits of the LMP201X are rail-to-rail output,n Precision instrumentatio ..


LM3411AM5-3.3-LM3411AM5X-3.3-LM3411AM5X-5.0-LM3411M5-3.3-LM3411M5X-3.3-LM3411M5X-5.0
Precision Secondary Regulator/Driver
LM3411
Precision Secondary Regulator/Driver
General Description

The LM3411isalow power fixed-voltage (3.3Vor 5.0V) pre-
cision shunt regulator designed specificallyfor drivingan op-
toisolatorto provide feedback isolationina switching regula-
tor.
The LM3411 circuitry includesan internally compensatedop
amp,a bandgap reference, NPN output transistor, and volt-
age setting resistors. trimmed precision bandgap reference with temperature
drift curvature correction, providesa guaranteed 1% preci-
sion overthe operating temperature range(A grade version).
The amplifier’s inverting inputis externally accessiblefor
loop frequency compensation when usedas partofa larger
servo system. The outputisan open-emitter NPN transistor
capableof drivingupto15 mAof load current.
Becauseofits small die size, the LM3411 has been made
availablein the sub-miniature 5-lead SOT23-5 surface
mount package. This packageis idealfor usein space criti-
cal applications.
Althoughits main applicationisto providea precision output
voltage(no trimming required) and maintain very good regu-
lationin isolated DC/DC converters,it can alsobe used with
other typesof voltage regulatorsor power semiconductorsto
providea precision output voltage without precision resistors trimming.
Features
Fixed voltagesof 3.3V and 5.0V with initial toleranceof
±1%for standard grade and ±0.5%forA grade Custom voltages available (3V–17V) Wide output current range,20 μA–15 mA Low temperature coefficient Availablein 5-lead SOT23-5 surface mount package
(tape and reel)
Applications
Secondary controllerfor isolated DC/DC PWM switching
regulators systems Use with LDO regulatorfor high-precision fixed output
regulators Precision monitoring applications Use with many typesof regulatorsto increase precision
and improve performance
Typical Application and Functional Diagram

DS011987-1
Basic Isolated DC/DC Converter

DS011987-2
LM3411 Functional Diagram

July 2000
LM341
Precision
Secondary
Regulator/Driver
ic,good price


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