Datasheets
LM3940ISX-3.3 by:

IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator

Part Details for LM3940ISX-3.3 by National Semiconductor Corporation

Overview of LM3940ISX-3.3 by National Semiconductor Corporation

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Applications Industrial Automation Energy and Power Systems Renewable Energy

Price & Stock for LM3940ISX-3.3

Part # Distributor Description Stock Price Buy
Bristol Electronics   357
RFQ
Bristol Electronics   2510
RFQ
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SIP 285
  • 1 $2.3600
  • 117 $1.1800
  • 255 $1.0915
$1.0915 / $2.3600 Buy Now
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SIP 2422
  • 1 $3.8800
  • 335 $1.6005
  • 626 $1.4550
$1.4550 / $3.8800 Buy Now
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SIP 2000
  • 1 $3.9404
  • 330 $1.6254
  • 616 $1.4777
$1.4777 / $3.9404 Buy Now
Quest Components Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SIP 372
  • 1 $3.9404
  • 153 $1.8224
  • 330 $1.6254
$1.6254 / $3.9404 Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 6
  • 1 $1.9200
  • 100 $1.4400
  • 1,000 $1.2500
$1.2500 / $1.9200 Buy Now

Part Details for LM3940ISX-3.3

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LM3940ISX-3.3 Part Data Attributes

LM3940ISX-3.3 National Semiconductor Corporation
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LM3940ISX-3.3 National Semiconductor Corporation IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator
Rohs Code No
Part Life Cycle Code Transferred
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP
Package Description TO-263, 3 PIN
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Adjustability FIXED
Dropout Voltage1-Max 1 V
Dropout Voltage1-Nom 0.5 V
Input Voltage Absolute-Max 7.5 V
Input Voltage-Max 5.5 V
Input Voltage-Min 4.5 V
JESD-30 Code R-PSSO-G3
JESD-609 Code e0
Length 10.16 mm
Line Regulation-Max 0.04%
Load Regulation-Max 0.08%
Moisture Sensitivity Level 3
Number of Functions 1
Number of Outputs 1
Number of Terminals 3
Operating Temperature TJ-Max 125 °C
Operating Temperature TJ-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 TO-263
Package Equivalence Code SMSIP3H,.55TB
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Packing Method TR
Peak Reflow Temperature (Cel) 235
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 4.8 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 2.54 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 5.2%
Width 8.635 mm

Alternate Parts for LM3940ISX-3.3

This table gives cross-reference parts and alternative options found for LM3940ISX-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 LM3940ISX-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
LM3940IS-3.3/NOPB IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, ROHS COMPLIANT, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940ISX-3.3 vs LM3940IS-3.3/NOPB
LM3940IS-3.3/NOPB 1-A, low-dropout voltage regulator for 5-V to 3.3-V conversion 3-DDPAK/TO-263 -40 to 125 Texas Instruments LM3940ISX-3.3 vs LM3940IS-3.3/NOPB
Part Number Description Manufacturer Compare
LM3940IS-3.3/NOPB IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, ROHS COMPLIANT, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator National Semiconductor Corporation LM3940ISX-3.3 vs LM3940IS-3.3/NOPB

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