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Power Circuits / Linear Regulator ICs / LM3940IMP-3.3
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LM3940IMP-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 LM3940IMP-3.3 by Texas Instruments

Overview of LM3940IMP-3.3 by Texas Instruments

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Applications Industrial Automation Energy and Power Systems Renewable Energy

Price & Stock for LM3940IMP-3.3

Part # Distributor Description Stock Price Buy
DISTI # 296-35909-1-ND
DigiKey IC REG LINEAR 3.3V 1A SOT223-4 Min Qty: 1 Lead time: 6 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) 7713
In Stock
  • 1 $2.6900
  • 10 $2.4200
  • 25 $2.2824
  • 100 $1.9448
  • 250 $1.8261
  • 500 $1.5978
  • 1,000 $1.3239
  • 2,000 $1.2326
  • 5,000 $1.1869
$1.1869 / $2.6900 Buy Now
Bristol Electronics   373
RFQ
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SOT-223 8
  • 1 $1.2600
  • 5 $1.0080
$1.0080 / $1.2600 Buy Now
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SOT-223 40
  • 1 $2.5000
  • 3 $2.0000
  • 11 $1.2500
$1.2500 / $2.5000 Buy Now
Rochester Electronics LM3940 1A Low Dropout Regulator for 5V to 3.3V Conversion RoHS: Not Compliant Status: Not Recommended for New Designs Min Qty: 1 160
  • 1 $1.3200
  • 25 $1.2900
  • 100 $1.2400
  • 500 $1.1900
  • 1,000 $1.1200
$1.1200 / $1.3200 Buy Now
DISTI # LM3940IMP-3.3
TME IC: voltage regulator, LDO,fixed, 3.3V, 1A, SOT223, SMD, reel,tape Min Qty: 1 439
  • 1 $1.5500
  • 5 $1.4000
  • 25 $1.3100
  • 100 $1.2500
  • 250 $1.2100
$1.2100 / $1.5500 Buy Now
Chip1Cloud LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R / IC REG LDO 3.3V 1A SOT223 23000
RFQ
Perfect Parts Corporation   5522
RFQ
Win Source Electronics LDO Regulator Pos 3.3V 1A 4-Pin(3+Tab) SOT-223 T/R / IC REG LDO 3.3V 1A SOT223 51300
  • 45 $1.1310
  • 110 $0.9280
  • 170 $0.8990
  • 230 $0.8700
  • 300 $0.8410
  • 400 $0.7540
$0.7540 / $1.1310 Buy Now

Part Details for LM3940IMP-3.3

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LM3940IMP-3.3 Part Data Attributes

Parametric Data
LM3940IMP-3.3 Texas Instruments
Buy Now Datasheet
Compare Parts:
LM3940IMP-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 SOT-223, 3 PIN
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 LM3940IMP-3.3

This table gives cross-reference parts and alternative options found for LM3940IMP-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 LM3940IMP-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 1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 4-SOT-223 -40 to 125 Texas Instruments LM3940IMP-3.3 vs LM3940IMPX-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 LM3940IMP-3.3 vs LM3940IMPX-3.3/NOPB
LM3940IMPX-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 LM3940IMP-3.3 vs LM3940IMPX-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 LM3940IMP-3.3 vs LM3940IMP-3.3
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 LM3940IMP-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 LM3940IMP-3.3 vs LM3940IMP-3.3/NOPB
Part Number Description Manufacturer Compare
LT1521IST-5#TR Fixed Positive LDO Regulator, 5V, 0.75V Dropout, PDSO4 Analog Devices Inc LM3940IMP-3.3 vs LT1521IST-5#TR
LD1085D2T25 2.5V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, PSSO2, LEAD FREE, D2PAK-3 STMicroelectronics LM3940IMP-3.3 vs LD1085D2T25
LT1084CT-12 Fixed Positive LDO Regulator, 12V, 1.5V Dropout, PSFM3, TO-220, 3 PIN Semtech Corporation LM3940IMP-3.3 vs LT1084CT-12
SPX2815U-2.5 Fixed Positive LDO Regulator, 2.5V, 1.2V Dropout, PSFM3, TO-220AB, 3 PIN Sipex Corporation LM3940IMP-3.3 vs SPX2815U-2.5
LT1086-05-220MR1 5V FIXED POSITIVE LDO REGULATOR, 1.5V DROPOUT, MSFM3, METAL, TO-220, 3 PIN TT Electronics Power and Hybrid / Semelab Limited LM3940IMP-3.3 vs LT1086-05-220MR1
CS9202YDFR8 Fixed Positive LDO Regulator, 3.3V, BIPolar, PDSO8 onsemi LM3940IMP-3.3 vs CS9202YDFR8
LF33ABV Very low drop voltage regulator with inhibit STMicroelectronics LM3940IMP-3.3 vs LF33ABV
SPX1521U-3.3-L Fixed Positive LDO Regulator, 3.3V, 0.7V Dropout, PSFM3, LEAD FREE, TO-220, 3 PIN Exar Corporation LM3940IMP-3.3 vs SPX1521U-3.3-L
SPX2810R-3.3/TR Fixed Positive LDO Regulator, 3.3V, 1.2V Dropout, PSSO2, TO-252AA, 3 PIN Sipex Corporation LM3940IMP-3.3 vs SPX2810R-3.3/TR
MIC39300-2.5BU Fixed Positive LDO Regulator, 2.5V, 0.55V Dropout, BIPolar, PSSO3, TO-263, 3 PIN Micrel Inc LM3940IMP-3.3 vs MIC39300-2.5BU

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