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 Packages—Quad Flat No-LeadOtherOtherInductors Precision Moulded
Pin Count20—249842
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
LifecycleOBSOLETE—ACTIVEACTIVEACTIVEACTIVE
Electrical Parameters
Pbfree CodeNo——YesYes—
YTEOL0—1386.897
Additional FeatureOUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 5——STANDARD: 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 Codee0——e3e4e3
Number of Functions1———21
Output Current-Max6 A—————
Package Body MaterialPLASTIC/EPOXY—————
Package Equivalence CodeTSSOP20,.25—————
Package ShapeRECTANGULAR—————
Package StyleSMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH————SMT
Qualification StatusNot Qualified—————
Surface MountYES————YES
Switcher ConfigurationBUCK—————
Switching Frequency-Max825 kHz—————
TechnologyBICMOS—————
Temperature GradeAUTOMOTIVE—————
Terminal FinishTIN LEAD———GOLD OVER NICKELTin (Sn) - with Nickel (Ni) barrier
Terminal FormGULL WING—————
Terminal Pitch0.65 mm——2.54 mm——
Terminal PositionDUAL—————
## LM20343MHE Alternates Showing resultsImage—————
Manufacturer Package Code——QFN-24———
Factory Lead Time——7 Weeks——16 Weeks
Telecom IC Type——ETHERNET TRANSCEIVER———
## LAN8742AI-CZ Alternates Showing results——Image———
Body Breadth———0.413 inch——
Body Length———3.701 inch——
Body/Shell Style———RECEPTACLE——
Connector Type———BOARD EURO CONNECTOR——
Contact Finish Mating———NOT SPECIFIED——
Contact Finish Termination———TIN OVER NICKEL——
Contact Gender———FEMALE——
Contact Material———NOT SPECIFIED——
Contact Pattern———RECTANGULAR——
Contact Style———SQ PIN-SKT——
DIN Conformance———YES——
Filter Feature———NO——
IEC Conformance———NO——
MIL Conformance———NO——
Mating Contact Pitch———0.1 inch——
Mating Contact Row Spacing———0.1 inch——
Mixed Contacts———NO——
Mounting Option 1———HOLE .087-.098——
Mounting Option 2———SCREW——
Mounting Style———RIGHT ANGLE——
Mounting Type———BOARDSURFACE MOUNT—
Number Of Connectors———ONE——
Number Of PCB Rows———3——
Number of Rows Loaded———3——
Option———GENERAL PURPOSE——
PCB Contact Pattern———RECTANGULAR——
PCB Contact Row Spacing———2.54 mm——
Rated Current (Signal)———2 A——
Terminal Length———0.11 inch——
Termination Type———SOLDER——
Total Number of Contacts———96——
UL Flammability Code———94V-0——
Attenuation Frequency-Max————500 MHz—
Attenuation Frequency-Min————100 MHz—
Attenuation@Freq-Max————16.9 dB—
Attenuation@Freq-Min————4.2 dB—
DC Resistance-Max————0.17 Ω—
Filter Type————DATA LINE FILTER—
Height————1.65 mm—
Inductance————0.047 µH—
Output Impedance————90 OHM Ω—
Package Material————PLASTIC—
Packing Method————TAPE AND REELTR, EMBOSSED, 13 INCH
Rated Current————0.5 A—
Case/Size Code—————4339
Construction—————Rectangular
Core Material—————CARBONYL POWDER
DC Resistance—————0.167 Ω
Inductance-Nom (L)—————47 µH
Inductor Application—————POWER INDUCTOR
Inductor Type—————GENERAL PURPOSE INDUCTOR
Package Height—————3.8 mm
Package Length—————11 mm
Package Width—————10 mm
Quality Factor-Min (at L-nom)—————20
Rated Current-Max—————3 A
Reference Standard—————AEC-Q200
Self Resonance Frequency—————5 MHz
Shape/Size Description—————RECTANGULAR PACKAGE
Shielded—————YES
Terminal Placement—————DUAL ENDED
Terminal Shape—————WRAPAROUND
Test Frequency—————0.1 MHz
Tolerance—————20%

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

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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.