Datasheet Texas Instruments LM340L

ManufacturerTexas Instruments
Datasheet Texas Instruments LM340L

100mA Fixed Output Positive Volatge Regulators


LM140L/LM340L Series 3-Terminal Positive Regulators datasheet
PDF, 517 Kb, Revision: B, File published: Mar 20, 2013
Extract from the document



Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesNo


Package TypeLPLP
Industry STD TermTO-92TO-92
Package QTY20001800
Device Marking340LAZ-5.0
Width (mm)4.34.3
Length (mm)4.34.3
Thickness (mm)3.63.6
Pitch (mm)1.271.27
Max Height (mm)5.345.34
Mechanical DataDownloadDownload


Parameters / ModelsLM340LAZ-5.0/LFT4
Accuracy, %2.52.5
Fixed Output Options, V5,12,155,12,15
Iout(Max), A0.10.1
Iq(Typ), mA33
Noise, uVrms4040
Operating Temperature Range, C0 to 700 to 70
Output Capacitor TypeNon-CeramicNon-Ceramic
Output OptionsFixed OutputFixed Output
PSRR @ 100KHz, dB4343
Package GroupTO-92TO-92
Package Size: mm2:W x L, PKG3TO-92: 18 mm2: 4.3 x 4.3(TO-92)3TO-92: 18 mm2: 4.3 x 4.3(TO-92)
Regulated Outputs11
Special FeaturesN/AN/A
Thermal Resistance ОёJA, В°C/W232232
Vdo(Typ), mV20002000
Vin(Max), V3535
Vin(Min), V77
Vout(Max), V1515
Vout(Min), V55

Eco Plan


Application Notes

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  • Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)
    PDF, 509 Kb, Revision: A, File published: Jun 4, 2008
  • AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B)
    PDF, 300 Kb, Revision: B, File published: May 6, 2013
    This application note discusses the operation and compensation of linear regulators.
  • AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A)
    PDF, 814 Kb, Revision: A, File published: May 6, 2013
    The LM340-XX are three terminal 1.0A positive voltage regulators with preset output voltages of 5.0V or15V. The LM340 regulators are complete 3-terminal regulators requiring no external components fornormal operation. However by adding a few parts one may improve the transient response provide for avariable output voltage or increase the output current. Included on the chip are all of t
  • Understanding the Terms and Definitions of LDO Voltage Regulators
    PDF, 197 Kb, File published: Oct 21, 1999
    This report provides an understanding of the terms and definitions of low dropout (LDO) voltage regulators and describes fundamental concepts including dropout voltage quiescent current standby current efficiency transient response line/load regulation power supply rejection output noise voltage accuracy and power dissipation. Each section includes an example to increase the understandab
  • TO-92 Packing Options / Ordering Instructions (Rev. A)
    PDF, 287 Kb, Revision: A, File published: Jun 23, 2010
  • Packaging Limits Range of Linear Regulators
    PDF, 75 Kb, File published: May 8, 2010
    The power limitations of the physical packaging for a linear regulator device can limit the total output current or the input-to-output voltage differential. This inherent limitation is not always apparent from the product data sheet and must be evaluated during the design phase. This application note shows how the package can limit the operating envelope of a linear regulator.

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Manufacturer's Classification

  • Semiconductors> Power Management> Linear Regulator (LDO)> Single Channel LDO
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