LM20343MHEAlternatives & Equivalent Parts

LM20343MHE is marked OBSOLETE. Compare the equivalents below, check each part's lifecycle, and request a quote on a suitable replacement.

About LM20343MHE

LM20343MHE is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

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Specification Comparison

ParameterLM20343MHESourceLM20343MHLAN8742AI-CZ097329668010805USB-901MLCSRP1038A-470M
ManufacturerTexas InstrumentsTexas InstrumentsMicrochipHARTINGCOILCRAFTBourns
Package TypeSmall Outline PackagesQuad Flat No-LeadOtherOtherInductors Precision Moulded
Pin Count20249842
Temperature Range-40.0°C ~ 125.0°C-40.0°C ~ 85.0°C-55.0°C ~ 150.0°C
Price$4.4118$0.9403$4.0292$0.2700$0.6723
StockIn StockIn StockIn StockIn StockIn StockIn Stock
LifecycleOBSOLETEACTIVEACTIVEACTIVEACTIVE
Electrical Parameters
Pbfree CodeNoYesYes
YTEOL01386.897
Additional FeatureOUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 5STANDARD: IEC 60603-2GOLD OVER NICKEL OVER SILVER-PALLADIUM-GLASS FRIT TERMINATION
Analog IC - Other TypeSWITCHING REGULATOR
Control ModeCURRENT-MODE
Control TechniquePULSE WIDTH MODULATION
Input Voltage-Max36 V
Input Voltage-Min4.5 V
Input Voltage-Nom12 V
JESD-30 CodeR-PDSO-G20
JESD-609 Codee0e3e4e3
Number of Functions121
Output Current-Max6 A
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeTSSOP20,.25
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCHSMT
Qualification StatusNot Qualified
Surface MountYESYES
Switcher ConfigurationBUCK
Switching Frequency-Max825 kHz
TechnologyBICMOS
Temperature GradeAUTOMOTIVE
Terminal FinishTIN LEADGOLD OVER NICKELTin (Sn) - with Nickel (Ni) barrier
Terminal FormGULL WING
Terminal Pitch0.65 mm2.54 mm
Terminal PositionDUAL
## LM20343MHE Alternates Showing resultsImage
Manufacturer Package CodeQFN-24
Factory Lead Time7 Weeks16 Weeks
Telecom IC TypeETHERNET TRANSCEIVER
## LAN8742AI-CZ Alternates Showing resultsImage
Body Breadth0.413 inch
Body Length3.701 inch
Body/Shell StyleRECEPTACLE
Connector TypeBOARD EURO CONNECTOR
Contact Finish MatingNOT SPECIFIED
Contact Finish TerminationTIN OVER NICKEL
Contact GenderFEMALE
Contact MaterialNOT SPECIFIED
Contact PatternRECTANGULAR
Contact StyleSQ PIN-SKT
DIN ConformanceYES
Filter FeatureNO
IEC ConformanceNO
MIL ConformanceNO
Mating Contact Pitch0.1 inch
Mating Contact Row Spacing0.1 inch
Mixed ContactsNO
Mounting Option 1HOLE .087-.098
Mounting Option 2SCREW
Mounting StyleRIGHT ANGLE
Mounting TypeBOARDSURFACE MOUNT
Number Of ConnectorsONE
Number Of PCB Rows3
Number of Rows Loaded3
OptionGENERAL PURPOSE
PCB Contact PatternRECTANGULAR
PCB Contact Row Spacing2.54 mm
Rated Current (Signal)2 A
Terminal Length0.11 inch
Termination TypeSOLDER
Total Number of Contacts96
UL Flammability Code94V-0
Attenuation Frequency-Max500 MHz
Attenuation Frequency-Min100 MHz
Attenuation@Freq-Max16.9 dB
Attenuation@Freq-Min4.2 dB
DC Resistance-Max0.17 Ω
Filter TypeDATA LINE FILTER
Height1.65 mm
Inductance0.047 µH
Output Impedance90 OHM Ω
Package MaterialPLASTIC
Packing MethodTAPE AND REELTR, EMBOSSED, 13 INCH
Rated Current0.5 A
Case/Size Code4339
ConstructionRectangular
Core MaterialCARBONYL POWDER
DC Resistance0.167 Ω
Inductance-Nom (L)47 µH
Inductor ApplicationPOWER INDUCTOR
Inductor TypeGENERAL PURPOSE INDUCTOR
Package Height3.8 mm
Package Length11 mm
Package Width10 mm
Quality Factor-Min (at L-nom)20
Rated Current-Max3 A
Reference StandardAEC-Q200
Self Resonance Frequency5 MHz
Shape/Size DescriptionRECTANGULAR PACKAGE
ShieldedYES
Terminal PlacementDUAL ENDED
Terminal ShapeWRAPAROUND
Test Frequency0.1 MHz
Tolerance20%

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

Need pricing on these alternatives?

Get one quote covering all 5 alternatives for LM20343MHE — response within 24 hours.

Quick Links

LM20343MHby National Semiconductor Corporation

Switching Regulator, Current-mode, 6A, 825kHz Switching Freq-Max, PDSO20

Why Look for Alternatives?

Finding alternatives for LM20343MHE is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.

When evaluating LM20343MHE replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.

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FAQ

What is equivalent to LM20343MHE?

Known equivalents for LM20343MHE include LM20343MH, LAN8742AI-CZ, 09732966801. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of LM20343MHE?

In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.

How do I verify LM20343MHE alternatives?

Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.