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Details for Texas Instruments


1.5A, Fixed Output Linear Regulator
Buy Directly from Texas Instruments (25471 in Stock)
$0.4600 per unit
Series Information for LM340MPX-5.0/NOPB - Texas Instruments


  • feature
    Available in Fixed 5-V, 12-V, and 15-V Options
  • feature
    Available in Space-Saving SOT-223 Package
  • feature
    Internal Thermal Overload, Short-Circuit and SOA Protection
  • feature
    Line Regulation of 0.01% / V of at 1-A Load (LM340A)
  • feature
    Load Regulation of 0.3% / A (LM340A)
  • feature
    Output Capacitance Not Required for Stability
  • feature
    Output Current up to 1.5 A
  • feature
    Output Voltage Tolerances of u00b12% at TJ = 25u00b0C (LM340A)


The LM340 and LM7805 Family monolithic 3-terminal positive voltage regulators employ internal currentlimiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.5-A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents. Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply. LM7805 is also available in a higher accuracy and better performance version (LM340A). Refer to LM340A specifications in the LM340A Electrical Characterisitcs table.


Output Type:
Input Voltage Min:
Input Voltage Max:
Fixed Output Voltage Nom.:
Adjustable Output Voltage Min:
Adjustable Output Voltage Max:
Output Current:
No. of Pins:

Alternate Descriptions

Avnet America

LDO Regulator Pos 5V 1A 4-Pin(3+Tab) SOT-223 T/R

Avnet America product

Avnet Europe

LDO Regulator Pos 5V 1A 4-Pin(3+Tab) SOT-223 T/R

Avnet Europe product

Texas Instruments

1.5A, Fixed Output Linear Regulator

Texas Instruments product