Datasheet Texas Instruments LM340T-12/NOPB
| Manufacturer | Texas Instruments |
| Series | LM340 |
| Part Number | LM340T-12/NOPB |
1.5A, Fixed Output Linear Regulator 3-TO-220 0 to 125
Datasheets
LM340, LM340A and LM7805 Family Wide VIN 1.5-A Fixed Voltage Regulators datasheet
PDF, 3.7 Mb, Revision: L, File published: Sep 29, 2016
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Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | Yes |
Packaging
| Pin | 3 | 3 |
| Package Type | NDE | NDE |
| Industry STD Term | TO-220 | TO-220 |
| JEDEC Code | R-MSFM-P | R-MSFM-P |
| Package QTY | 45 | 45 |
| Carrier | TUBE | TUBE |
| Device Marking | 7812 P+ | LM340T12 |
| Width (mm) | 10.16 | 10.16 |
| Length (mm) | 14.986 | 14.986 |
| Thickness (mm) | 4.572 | 4.572 |
| Pitch (mm) | 2.54 | 2.54 |
| Max Height (mm) | 4.7 | 4.7 |
| Mechanical Data | Download | Download |
Parametrics
| Accuracy(%) | 5 |
| Approx. Price (US$) | 0.46 | 1ku |
| Fixed Output Options(V) | 5 12 15 |
| Iout(Max)(A) | 1.5 |
| Iq(Typ)(mA) | 8 |
| Noise(uVrms) | 40 |
| Operating Temperature Range(C) | 0 to 125 |
| Output Capacitor Type | Cap Free Ceramic |
| Output Options | Fixed Output |
| PSRR @ 100KHz(dB) | 50 |
| Package Group | TO-220 |
| Package Size: mm2:W x L (PKG) | See datasheet (TO-220) |
| Rating | Catalog |
| Regulated Outputs(#) | 1 |
| Special Features | N/A |
| Thermal Resistance ОёJA(В°C/W) | 24 |
| Vdo(Typ)(mV) | 2000 |
| Vin(Max)(V) | 35 |
| Vin(Min)(V) | 7.5 |
| Vout(Max)(V) | 15 |
| Vout(Min)(V) | 5 |
Eco Plan
| RoHS | Compliant |
| Pb Free | Yes |
Application Notes
- A Topical Index of TI LDO Application Notes (Rev. F)PDF, 82 Kb, Revision: F, File published: Jun 27, 2019
- Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A)PDF, 509 Kb, Revision: A, File published: Jun 4, 2008
- Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)PDF, 284 Kb, Revision: A, File published: May 5, 2013
When working with voltage regulator circuits the designer is often confronted with the need to calculatethe tolerance of the regulated output voltage. For fixed voltage regulators this problem is easily managedbecause the required information is directly supplied on the semiconductor manufacturer's data sheet. - AN-298 Isolation Techniques for Signal Conditioning (Rev. B)PDF, 685 Kb, Revision: B, File published: May 6, 2013
This application note provides information and examples of isolation techniques for signal conditioning. - AN-182 Improving Power Supply Reliability with IC Power Regulators (Rev. B)PDF, 82 Kb, Revision: B, File published: May 5, 2013
This application report discusses improving power supply reliability with IC power regulators. - 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 - AN-181 3-Terminal Regulator is Adjustable (Rev. B)PDF, 314 Kb, Revision: B, File published: May 5, 2013
Until now all of the 3-terminal power IC voltage regulators have a fixed output voltage. In spite of this limitation their ease of use low cost and full on-chip overload protection have generated wide acceptance. Now with the introduction of the LM117 it is possible to use a single regulator for any output voltage from 1.2 V to 37 V at 1.5A. Selecting close-tolerance outp - Industrial-strength design considerations to prevent thermal and EMI damagePDF, 282 Kb, File published: Apr 11, 2014
- Understanding the Terms and Definitions of LDO Voltage RegulatorsPDF, 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 - Super Matched Bipolar Transistor Pair Sets New Standards for Drift and Noise (Rev. B)PDF, 966 Kb, Revision: B, File published: May 5, 2013
This application report discusses how a super matched bipolar transistor pair sets new standards for driftand noise. - AN-256 Circuitry for Inexpensive Relative Humidity Measurement (Rev. B)PDF, 262 Kb, Revision: B, File published: May 6, 2013
Of all common environmental parameters humidity is perhaps the least understood and most difficult tomeasure. The most common electronic humidity detection methods albeit highly accurate are not obviousand tend to be expensive and complex (See Box). Accurate humidity measurement is vital to a number ofdiverse areas including food processing paper and lumber production pollution monitor - LM143 Monolithic High Voltage Operational Amplifier ApplicationsPDF, 479 Kb, File published: May 2, 2004
Application Note 127 LM143 Monolithic High Voltage Operational Amplifier Applications - AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B)PDF, 684 Kb, Revision: B, File published: May 6, 2013
The purpose of this application report is to aid the user in maximizing the power handling capability of Texas Instruments power packages by using the SOT-223 as an example. - AB-12 Wide Adjustable Range PNP Voltage Regulator (Rev. B)PDF, 47 Kb, Revision: B, File published: May 6, 2013
This application note discusses the PNP voltage regulator. - Packaging Limits Range of Linear RegulatorsPDF, 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.
Model Line
Series: LM340 (18)
Manufacturer's Classification
- Semiconductors > Power Management > Linear Regulator (LDO) > Single Channel LDO
Other Names:
LM340T12/NOPB, LM340T 12/NOPB
