LMR14203XMKXAlternatives & Equivalent Parts

LMR14203XMKX is marked OBSOLETE. Compare the equivalents below, check each part's lifecycle, and request a quote on a suitable replacement.

About LMR14203XMKX

LMR14203XMKX is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT23 (6-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

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Specification Comparison

ParameterLMR14203XMKXSourceACM2520-102-2P-T002UWT1C101MCL1GBVLS6045EX-221MATXMEGA64D3-AULMR14203XMKE/NOPB
ManufacturerTexas InstrumentsTDKNichiconTDKMicrochipTexas Instruments
Package TypeSOT23 (6-Pin)OtherCapacitor Al ElectrolyticOtherQuad Flat PackagesSOT23 (6-Pin)
Pin Count6422646
Temperature Range-40.0°C ~ 125.0°C-40.0°C ~ 85.0°C-55.0°C ~ 105.0°C-40.0°C ~ 105.0°C-40.0°C ~ 85.0°C-40.0°C ~ 125.0°C
Price$0.4039$0.2834$0.0642$0.1552$3.8900$0.4039
StockIn StockIn StockIn StockIn StockIn StockIn Stock
LifecycleOBSOLETEACTIVEACTIVEACTIVEACTIVEACTIVE
Electrical Parameters
YTEOL076.956.61415
Additional FeatureOUTPUT VOLTAGE RANGE IS 0.765 TO 34VALSO OPERATES IN ADJUSTABLE MODE FROM 0.765 TO 34V
Analog IC - Other TypeSWITCHING REGULATORSWITCHING REGULATOR
Control ModeCURRENT-MODECURRENT-MODE
Control TechniquePULSE WIDTH MODULATIONPULSE WIDTH MODULATION
Input Voltage-Max42 V42 V
Input Voltage-Min4.5 V4.5 V
Input Voltage-Nom12 V12 V
JESD-30 CodeR-PDSO-G6S-PQFP-G64R-PDSO-G6
Number of Functions1211
Output Voltage-Max34 V34 V
Output Voltage-Min0.765 V0.765 V
Package Body MaterialPLASTIC/EPOXYPLASTIC/EPOXYPLASTIC/EPOXY
Package Equivalence CodeTSOP6,.11,37TQFP64,.63SQ,32TSOP6,.11,37
Package ShapeRECTANGULARCYLINDRICAL PACKAGESQUARERECTANGULAR
Package StyleSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCHSMTSMTFLATPACK, THIN PROFILESMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Surface MountYESYESYESYESYES
Switcher ConfigurationBUCKBUCK
Switching Frequency-Max1500 kHz1500 kHz
TechnologyBICMOSCMOSBICMOS
Temperature GradeAUTOMOTIVEINDUSTRIALAUTOMOTIVE
Terminal FormGULL WINGGULL WINGGULL WING
Terminal Pitch0.95 mm0.8 mm0.95 mm
Terminal PositionDUALQUADDUAL
Pbfree CodeYesYesYesYes
Factory Lead Time15 Weeks12 Weeks17 Weeks
DC Resistance-Max0.9 Ω
Filter TypeFERRITE CHIP
Height1.2 mm5.4 mm
Insulation Resistance-Min10 MΩ
Mounting TypeSURFACE MOUNT
Output Impedance1000 OHM Ω
Packing MethodTR, 7 INCHTR, 15 INCHTR, Embossed Plastic, 13 Inch
Rated Current0.2 A
Rated Voltage20 V
Reach Compliance CodeNot Compliant
Capacitance100 µF
Capacitor TypeALUMINUM ELECTROLYTIC CAPACITOR
Diameter6.3 mm
Dielectric MaterialALUMINUM (WET)
JESD-609 Codee6e4e3e3
Leakage Current0.016 mA
Mounting FeatureSURFACE MOUNT
Negative Tolerance20%
PolarityPOLARIZED
Positive Tolerance20%
Rated (DC) Voltage (URdc)16 V
Reference StandardAEC-Q200
Ripple Current60 mA
Size Code2626
Tan Delta0.2
Terminal FinishTin/Bismuth (Sn/Bi)Silver/Platinum (Ag/Pt)Matte Tin (Sn)Matte Tin (Sn)
Terminal ShapeFLATWRAPAROUND
Case/Size Code2424
ConstructionRectangular
Core MaterialFERRITE
DC Resistance1.15 Ω
Inductance-Nom (L)220 µH
Inductor ApplicationPOWER INDUCTOR
Inductor TypeGENERAL PURPOSE INDUCTOR
Package Height4.5 mm
Package Length6 mm
Package Width6 mm
Rated Current-Max0.5 A
Shape/Size DescriptionRECTANGULAR PACKAGE
ShieldedYES
Special FeatureDC RESISTANCE IS MEASURED AT 30%
Terminal PlacementDUAL ENDED
Test Frequency0.1 MHz
Tolerance20%
Manufacturer Package CodeTQFP-64
Has ADCYES
Bit Size8
Boundary ScanYES
CPU FamilyAVR RISC
Clock Frequency-Max32 MHz
DAC ChannelsNO
DMA ChannelsNO
Number of I/O Lines50
On Chip Program ROM Width8
PWM ChannelsYES
Peak Reflow Temperature (Cel)260260
Qualification StatusNot QualifiedNot Qualified
RAM (bytes)4096
ROM (words)65536
ROM ProgrammabilityFLASH
Speed32 MHz
Supply Current-Max18 mA
Supply Voltage-Max3.6 V
Supply Voltage-Min1.8 V
Supply Voltage-Nom1.8 V
uPs/uCs/Peripheral ICs TypeMICROCONTROLLER, RISC
## ATXMEGA64D3-AU Alternates Showing resultsImage
Number of Outputs1
Output Current-Max0.3 A
Time@Peak Reflow Temperature-Max (s)30

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

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Quick Links

LMR14203XMKE/NOPBby Texas Instruments

Switching Regulator, Current-mode, 0.3A, 1500kHz Switching Freq-Max, BICMOS, PDSO6

Why Look for Alternatives?

Finding alternatives for LMR14203XMKX 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 LMR14203XMKX 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 LMR14203XMKX?

Known equivalents for LMR14203XMKX include ACM2520-102-2P-T002, UWT1C101MCL1GB, VLS6045EX-221M. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of LMR14203XMKX?

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 LMR14203XMKX 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.