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Power Circuits / Linear Regulator ICs / LM3940IMPX-3.3
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LM3940IMPX-3.3 by:

1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 4-SOT-223 -40 to 125

Part Details for LM3940IMPX-3.3 by Texas Instruments

Overview of LM3940IMPX-3.3 by Texas Instruments

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Applications Industrial Automation Energy and Power Systems Renewable Energy

Price & Stock for LM3940IMPX-3.3

Part # Distributor Description Stock Price Buy
Win Source Electronics LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R / IC REG LDO 3.3V 1A SOT223 92651
  • 45 $1.1870
  • 105 $0.9740
  • 160 $0.9440
  • 220 $0.9130
  • 285 $0.8830
  • 380 $0.7920
$0.7920 / $1.1870 Buy Now

Part Details for LM3940IMPX-3.3

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LM3940IMPX-3.3 Part Data Attributes:

Parametric Data
LM3940IMPX-3.3 Texas Instruments
Buy Now Datasheet
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LM3940IMPX-3.3 Texas Instruments 1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 4-SOT-223 -40 to 125
Pbfree Code Yes
Rohs Code No
Part Life Cycle Code Lifetime Buy
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOT-223
Package Description SOP, SOT-223
Pin Count 3
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Date Of Intro 1998-04-01
Samacsys Manufacturer Texas Instruments
Adjustability FIXED
Dropout Voltage1-Max 1 V
Dropout Voltage1-Nom 0.31 V
Input Voltage Absolute-Max 7.5 V
Input Voltage-Max 5.5 V
Input Voltage-Min 4.5 V
JESD-30 Code R-PDSO-G4
JESD-609 Code e0
Length 6.5 mm
Line Regulation-Max 0.04%
Load Regulation-Max 0.08%
Moisture Sensitivity Level 1
Number of Functions 1
Number of Outputs 1
Number of Terminals 4
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-Min -40 °C
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Output Current1-Max 1 A
Output Voltage1-Max 3.47 V
Output Voltage1-Min 3.13 V
Output Voltage1-Nom 3.3 V
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOT-223
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 1.8 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 2.3 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Voltage Tolerance-Max 5.2%
Width 3.56 mm

Alternate Parts for LM3940IMPX-3.3

This table gives cross-reference parts and alternative options found for LM3940IMPX-3.3. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LM3940IMPX-3.3, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
LM3940IMPX-3.3 IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO4, SOT-223, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940IMPX-3.3 vs LM3940IMPX-3.3
LM3940IMP-3.3/NOPB 1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 4-SOT-223 -40 to 125 Texas Instruments LM3940IMPX-3.3 vs LM3940IMP-3.3/NOPB
LM3940IMP-3.3 IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO4, SOT-223, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940IMPX-3.3 vs LM3940IMP-3.3
LM3940IMPX-3.3/NOPB IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO4, ROHS COMPLIANT, SOT-223, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940IMPX-3.3 vs LM3940IMPX-3.3/NOPB
LM3940IMP-3.3 1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 4-SOT-223 -40 to 125 Texas Instruments LM3940IMPX-3.3 vs LM3940IMP-3.3
LM3940IMP-3.3/NOPB IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO4, ROHS COMPLIANT, SOT-223, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940IMPX-3.3 vs LM3940IMP-3.3/NOPB
Part Number Description Manufacturer Compare
AIC1722A-33CXABG Fixed Positive LDO Regulator, 3.3V, CMOS, PSSO3, TO-243AA, SOT-89, 3 PIN Analog Integrations Corporation LM3940IMPX-3.3 vs AIC1722A-33CXABG
AS2887T-3.3 Fixed Positive LDO Regulator, 3.3V, 1.5V Dropout, PSSO2, PLASTIC, TO-263, 3 PIN Sipex Corporation LM3940IMPX-3.3 vs AS2887T-3.3
LX8117-33CDT Fixed Positive LDO Regulator, 3.3V, 1.2V Dropout, PSSO2, ROHS COMPLIANT, PLASTIC, TO-252, DPAK-3 Microsemi Corporation LM3940IMPX-3.3 vs LX8117-33CDT
KD1083V33 3.3V FIXED POSITIVE LDO REGULATOR, 1.4V DROPOUT, PSFM3, TO-220, 3 PIN STMicroelectronics LM3940IMPX-3.3 vs KD1083V33
ADP3338AKCZ-2.85R7 High Accuracy Ultralow Quiescent Current, 1A, anyCAP® Dropout Regulator Analog Devices Inc LM3940IMPX-3.3 vs ADP3338AKCZ-2.85R7
SPX1587AT-L-1.5 Fixed Positive LDO Regulator, 1.5V, 1.2V Dropout, PSSO3, TO-263, 3 PIN Exar Corporation LM3940IMPX-3.3 vs SPX1587AT-L-1.5
MIC2950 Fixed Positive LDO Regulator, 5V, PBCY3, TO-92, 3 PIN Microchip Technology Inc LM3940IMPX-3.3 vs MIC2950
LT1083CK-5 Fixed Positive LDO Regulator, 5V, 1.5V Dropout, MBFM2, HERMETIC SEALED, TO-3, 2 PIN Semtech Corporation LM3940IMPX-3.3 vs LT1083CK-5
SC1566IT-2.5 Fixed Positive LDO Regulator, 2.5V, 0.6V Dropout, CMOS, PSFM3, TO-220, 3 PIN Semtech Corporation LM3940IMPX-3.3 vs SC1566IT-2.5
LT1085SMD-3.3 3.3V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, CBCC3, SMD1-3 TT Electronics Power and Hybrid / Semelab Limited LM3940IMPX-3.3 vs LT1085SMD-3.3

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