Datasheet Texas Instruments LM317MDCYR
| Manufacturer | Texas Instruments |
| Series | LM317M |
| Part Number | LM317MDCYR |
3/4 Pin 500mA Adjustable Positive Voltage Regulator 4-SOT-223 -40 to 125
Datasheets
LM317M 3-Terminal Adjustable Regulator datasheet
PDF, 1.1 Mb, Revision: P, File published: Mar 31, 2014
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Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 4 |
| Package Type | DCY |
| Industry STD Term | SOT-223 |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2500 |
| Carrier | LARGE T&R |
| Device Marking | L4 |
| Width (mm) | 3.5 |
| Length (mm) | 6.5 |
| Thickness (mm) | 1.6 |
| Pitch (mm) | 2.3 |
| Max Height (mm) | 1.8 |
| Mechanical Data | Download |
Parametrics
| Accuracy | 3 % |
| Features | N/A |
| Iout(Max) | 0.5 A |
| Iq(Typ) | 3.5 mA |
| Noise | 38 uVrms |
| Operating Temperature Range | -40 to 125 C |
| Output Capacitor Type | Cap Free,Non-Ceramic |
| Output Options | Adjustable Output |
| PSRR @ 100KHz | 22 dB |
| Package Group | SOT-223 |
| Package Size: mm2:W x L | 4SOT-223: 46 mm2: 7 x 6.5(SOT-223) PKG |
| Rating | Catalog |
| Regulated Outputs | 1 |
| Thermal Resistance ОёJA | 60 В°C/W |
| Vdo(Typ) | 2000 mV |
| Vin(Max) | 40 V |
| Vin(Min) | 3 V |
| Vout(Max) | 37 V |
| Vout(Min) | 1.2 V |
Eco Plan
| RoHS | Compliant |
Application Notes
- High Stability RegulatorsPDF, 104 Kb, File published: Oct 3, 2002
- AN-178 Applications for an Adjustable IC Power Regulator (Rev. B)PDF, 219 Kb, Revision: B, File published: May 5, 2013
This application report provides applications for the Texas Instruments LM117 3-terminal adjustableregulator. - AN-42 IC Provides On-Card Regulation for Logic Circuits (Rev. B)PDF, 593 Kb, Revision: B, File published: May 6, 2013
This application report provides on-card regulation for logic circuits. - High-Efficiency Reg has Low Drop-Out Voltage (Rev. B)PDF, 60 Kb, Revision: B, File published: Apr 23, 2013
Conventional regulators have a high drop-out voltage that is a function of the total output current.However with just a regulator chip an external transistor and a few passive components this designforms a high output current regulator with a limited input voltage and high efficiency. The circuit presentedhas a drop-out of 0.7V at 5A load current and 1.3V at a current level of as high as - Adjustable 3-Terminal Regulator for Low-Cost Battery Charging SystemsPDF, 104 Kb, File published: Oct 3, 2002
- A New Production Technique for Trimming Voltage RegulatorsPDF, 105 Kb, File published: Oct 3, 2002
- 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. - 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-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 - AN-1061 Power Conversion in Line-Powered Equipment (Rev. B)PDF, 406 Kb, Revision: B, File published: Apr 23, 2013
This application note describes line-powered equipment and power conversion techniques or methods tosolve those typical power needs. - 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-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. - LDO Noise Demystified (Rev. A)PDF, 785 Kb, Revision: A, File published: Aug 9, 2017
Thisapplicationreportexplainsthe differencebetweennoiseand PSRRof an LDO.It also explainsthedifferentwaysnoiseis specifiedin LDOdatasheetsandwhichspecificationshouldbe usedin theapplication.Finallyit explainshow LDOnoiseis reduced. - LDO PSRR Measurement Simplified (Rev. A)PDF, 131 Kb, Revision: A, File published: Aug 9, 2017
This applicationreportexplainsdifferentmethodsof measuringthe PowerSupplyRejectionRatio(PSRR)of a Low-Dropout(LDO)regulatorand includesthe prosand consof thesemeasuringmethods
Model Line
Series: LM317M (7)
Manufacturer's Classification
- Semiconductors > Analog and Mixed-Signal > Power Management > Linear Regulator (LDO) > Single Channel LDO
