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Power Circuits / Linear Regulator ICs / LM2940CSX-12/NOPB
Datasheets
LM2940CSX-12/NOPB by:

1-A, 26-V, high-PSRR, low-dropout voltage regulator 3-DDPAK/TO-263 0 to 125

Part Details for LM2940CSX-12/NOPB by Texas Instruments

Results Overview of LM2940CSX-12/NOPB by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

LM2940CSX-12/NOPB Information

LM2940CSX-12/NOPB by Texas Instruments is a Linear Regulator IC.
Linear Regulator ICs are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for LM2940CSX-12/NOPB

Part # Distributor Description Stock Price Buy
DISTI # LM2940CSX-12/NOPBCT-ND
DigiKey IC REG LINEAR 12V 1A TO263 Min Qty: 1 Lead time: 12 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 1869
In Stock
  • 1 $2.0300
  • 10 $1.4980
  • 25 $1.3648
  • 100 $1.2186
  • 250 $1.1488
  • 500 $1.1068
  • 1,000 $1.0722
  • 1,500 $1.0549
  • 2,500 $1.0356
  • 3,500 $1.0244
  • 5,000 $1.0136
$1.0136 / $2.0300 Buy Now
DISTI # 926-LM2940CSX12NOPB
Mouser Electronics LDO Voltage Regulators 1A LDO Reg A 926-LM2940CS-12/NOPB RoHS: Compliant 3820
  • 1 $2.0300
  • 10 $1.5000
  • 25 $1.3700
  • 100 $1.2200
  • 250 $1.1500
  • 500 $1.1000
  • 1,000 $1.0800
  • 2,500 $1.0500
  • 5,000 $1.0000
$1.0000 / $2.0300 Buy Now
Bristol Electronics   985
RFQ
Bristol Electronics   208
RFQ
Vyrian Regulators 3918
RFQ

Part Details for LM2940CSX-12/NOPB

LM2940CSX-12/NOPB CAD Models

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LM2940CSX-12/NOPB Part Data Attributes

Parametric Data
LM2940CSX-12/NOPB Texas Instruments
Buy Now Datasheet
Compare Parts:
LM2940CSX-12/NOPB Texas Instruments 1-A, 26-V, high-PSRR, low-dropout voltage regulator 3-DDPAK/TO-263 0 to 125
Pbfree Code Yes
Rohs Code No
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code D2PAK
Package Description ROHS COMPLIANT, TO-263, 3 PIN
Pin Count 4
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Adjustability FIXED
Dropout Voltage1-Max 1 V
Dropout Voltage1-Nom 0.5 V
Input Voltage Absolute-Max 45 V
Input Voltage-Max 26 V
Input Voltage-Min 13.6 V
JESD-30 Code R-PSSO-G3
JESD-609 Code e3
Length 10.16 mm
Line Regulation-Max 0.12%
Load Regulation-Max 0.12%
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
Output Current1-Max 1 A
Output Voltage1-Max 12.6 V
Output Voltage1-Min 11.4 V
Output Voltage1-Nom 12 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) 245
Qualification Status Not Qualified
Regulator Type FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Seated Height-Max 4.83 mm
Surface Mount YES
Technology BIPOLAR
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 2.54 mm
Terminal Position SINGLE
Time@Peak Reflow Temperature-Max (s) 30
Voltage Tolerance-Max 5%
Width 8.64 mm

Alternate Parts for LM2940CSX-12/NOPB

This table gives cross-reference parts and alternative options found for LM2940CSX-12/NOPB. 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 LM2940CSX-12/NOPB, 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 Manufacturer Composite Price Description Compare
LM2940CS-12/NOPB Texas Instruments $1.1084 1-A, 26-V, high-PSRR, low-dropout voltage regulator 3-DDPAK/TO-263 0 to 125 LM2940CSX-12/NOPB vs LM2940CS-12/NOPB
LM2940CS-12/NOPB National Semiconductor Corporation Check for Price IC VREG 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator LM2940CSX-12/NOPB vs LM2940CS-12/NOPB
LM2940CS-12 National Semiconductor Corporation Check for Price IC VREG 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator LM2940CSX-12/NOPB vs LM2940CS-12
LM2940CSX-12/NOPB National Semiconductor Corporation Check for Price IC VREG 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator LM2940CSX-12/NOPB vs LM2940CSX-12/NOPB
LM2940CSX-12 National Semiconductor Corporation Check for Price IC VREG 12 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO3, TO-263, 3 PIN, Fixed Positive Single Output LDO Regulator LM2940CSX-12/NOPB vs LM2940CSX-12
LM2940CSX-12 Texas Instruments Check for Price 1-A, 26-V, high-PSRR, low-dropout voltage regulator 3-DDPAK/TO-263 0 to 125 LM2940CSX-12/NOPB vs LM2940CSX-12
LM2940CS-12 Texas Instruments Check for Price 1-A, 26-V, high-PSRR, low-dropout voltage regulator 3-DDPAK/TO-263 0 to 125 LM2940CSX-12/NOPB vs LM2940CS-12
OM7649SM International Rectifier Check for Price Fixed Positive LDO Regulator, 12V, 0.2V Dropout, MDSO3, SMT-3 LM2940CSX-12/NOPB vs OM7649SM

LM2940CSX-12/NOPB Related Parts

LM2940CSX-12/NOPB Frequently Asked Questions (FAQ)

  • The maximum input voltage is 26V, but it's recommended to keep it below 20V for reliable operation.

  • To ensure a stable output voltage, make sure to use the recommended output capacitor (10uF) and input capacitor (10uF) values, and keep the input voltage within the recommended range.

  • The minimum input voltage required is 7.5V, but it's recommended to keep it above 10V for reliable operation.

  • The LM2940CSX-12/NOPB is rated for operation up to 125°C, but it's recommended to derate the output current and input voltage at higher temperatures to ensure reliable operation.

  • The power dissipation can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current.

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