LM340K-5.0/NOPB Part Information

Details for LM340K-5.0/NOPB by Texas Instruments

Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators

Part Description

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.

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Part Features

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

Part Specifications

Fixed Output Voltage Nom. 5V
Adjustable Output Voltage Min -
Adjustable Output Voltage Max -
Input Voltage Min 7.5V
Input Voltage Max 35V
Product Range LM340 Voltage Regulators
Output Current 1A
Output Type Fixed
Linear Regulator Case Style TO-3
No. of Pins 3Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Automotive Qualification Standard -
MSL -
SVHC No SVHC (27-Jun-2018)
Accuracy % 2%
Base Number 340
IC Generic Number 340
No. of Outputs 1Outputs
Operating Temperature Range 0°C to +125°C
Operating Voltage Tolerance + 2%
Output Current Max 1.5A
Output Voltage Max 5V
Output Voltage Nom. 5V
Primary Input Voltage 10V
Supply Voltage Max 20V
Supply Voltage Min 7.5V
Termination Type Through Hole
Voltage Regulator Type Positive Fixed
RoHS Compliant

Alternative Part Descriptions

  • IC, V REG +5.0V, TO-3-2, 340; Fixed Output Voltage Nom.:5V; Adjustable Output Voltage Min:-; Adjustable Output Voltage Max:-; Input Voltage Min:7.5V; Input Voltage Max:35V; Product Range:LM340 Voltage Regulators; Output Current:1A; RoHS Compliant: Yes | Newark Electronics
  • 1.5A, Fixed Output Linear Regulator | Texas Instruments
  • LDO Voltage Regulator [Texas Instruments] LM340K-5.0/NOPB LDO Voltage Regulator | Distrelec

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