LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 FEATURES • • • • Output Voltage Range Adjustable From 1.25 V to 37 V Output Current Greater Than 500 mA Internal Short-Circuit Current Limiting Thermal-Overload Protection Output Safe-Area Compensation • Q Devices Meet Automotive Performance Requirements Customer-Specific Configuration Control Can Be Supported for Q Devices Along With Major-Change Approval KTP PACKAGE (TOP VIEW) DCY PACKAGE (TOP VIEW) OUTPUT KVU (TO-252) PACKAGE (TOP VIEW) INPUT OUTPUT INPUT OUTPUT • INPUT OUTPUT • ADJUST OUTPUT ADJUST ADJUST DESCRIPTION/ORDERING INFORMATION The LM317M is an adjustable 3-terminal positive-voltage regulator capable of supplying more than 500 mA over an output-voltage range of 1.25 V to 37 V. The LM317M is exceptionally easy to use and requires only two external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators. In addition to having higher performance than fixed regulators, the device includes on-chip current limiting, thermal-overload protection, and safe-operating-area protection. All overload protection remains fully functional if the ADJUST terminal is disconnected. Normally, no capacitors are needed unless the device is more than six inches from the input filter capacitors, in which case an input bypass capacitor is needed. An optional output capacitor can be added to improve transient response. The ADJUST terminal can be bypassed to achieve high ripple-rejection ratios, which are difficult to achieve with standard three-terminal regulators. ORDERING INFORMATION PACKAGE (1) TJ PowerFLEX™ – KTP 0°C to 125°C –40°C to 125°C (1) ORDERABLE PART NUMBER TOP-SIDE MARKING Reel of 2000 LM317MKTPR Tube of 80 LM317MDCY Reel of 2500 LM317MDCYR TO-252 – KVU Reel of 2500 LM317MKVURG3 LM317M PowerFLEX – KTP Reel of 2000 LM317MQKTPR 317MQ LM317MQDCYR L5 LM317MQDCYRG3 L8 SOT – DCY SOT – DCY Reel of 2500 LM317M L4 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerFLEX is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2006, Texas Instruments Incorporated LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 Absolute Maximum Ratings (1) over operating temperature range (unless otherwise noted) MIN VI – VO Input-to-output differential voltage TJ Operating virtual junction temperature Lead temperature (within 5 mils of the plastic body for 10 s) Tstg (1) MAX KTP, DCY packages Storage temperature range –65 UNIT 40 V 150 °C 260 °C 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Package Thermal Data (1) (1) θJC PACKAGE BOARD PowerFLEX (KTP) High K, JESD 51-5 SOT-223 (DCY) High K, JESD 51-7 TO-252 (KVU) High K, JESD 51-5 θJCB θJA 3°C/W 28°C/W 30.6°C/W 53°C/W 30.3°C/W Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. Recommended Operating Conditions MIN MAX UNIT VI – VO Input-to-output voltage differential 37 V IO Output current 0.5 A TJ No suffix Operating virtual junction temperature Q suffix 0 125 –40 125 °C Electrical Characteristics over recommended operating virtual-junction temperature range, VI – VO = 5 V, IO = 0.1 A (unless otherwise noted) TEST CONDITIONS (1) PARAMETER Line regulation (2) VI – VO = 3 V to 40 V Load regulation IO = 10 mA to 500 mA MIN TYP MAX TJ = 25°C 0.01 0.04 Full temperature range 0.02 0.07 TJ = 25°C 0.1 0.5 Full temperature range 0.3 1.5 50 100 µA 0.2 5 µA 1.25 1.3 V ADJUST terminal current Change in ADJUST terminal current VI – VO = 3 V to 40 V, IO = 10 mA to 500 mA Reference voltage VI – VO = 3 V to 40 V, IO = 10 mA to 500 mA Output-voltage temperature stability 0.7 Minimum load current to maintain regulation 3.5 Maximum output current RMS output noise voltage (% of VO) VI – VO ≤ 15 V VI – VO = 40 V, PD ≤ PD(max), TJ = 25°C f = 10 Hz to 10 kHz, TJ = 25°C Ripple rejection VO = 10 V, f = 120 Hz, TJ = 25°C Long-term stability TJ = 25°C (1) (2) (3) 2 1.2 CADJ = 500 900 150 250 0.003 0 (3) CADJ = 10 µF (3) 65 66 80 0.3 Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Line voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input. CADJ is connected between the ADJUST terminal and ground. Submit Documentation Feedback UNIT %/V %VO % 10 mA mA %VO dB 1 %/1k hrs LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 TYPICAL CHARACTERISTICS LINE REGULATION vs TEMPERATURE LOAD REGULATION vs TEMPERATURE 1.00 0.15 ∆VO − Output Voltage Change − % ∆VO − Output Voltage Change − % 0.90 0.20 VI = 4.25 V to 41.25 V VO = Vref IL = 10 mA 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0 VI = 45 V VO = 5 V IL = 10 mA to 100 mA 0.10 0.05 0.00 −0.05 −0.10 −0.15 VI = 10 V VO = 5 V IL = 10 mA to 40 mA −0.20 −0.25 −0.30 −0.35 0 25 50 75 100 −0.40 125 0 25 TJ − Temperature − °C 100 Figure 2. ADJUST TERMINAL CURRENT vs TEMPERATURE TEMPERATURE STABILITY vs TEMPERATURE 125 1.260 VI = 6.25 V VO = Vref 1.255 VI = 4.25 V VO = Vref IL = 10 mA 51 IL = 100 mA V ref − Reference Voltage − V ADJUST Terminal Current − µA 75 Figure 1. 55 53 50 TJ − Temperature − °C 49 IL = 10 mA 47 45 43 41 39 1.245 1.240 1.235 1.230 1.225 37 35 1.250 0 25 50 75 100 125 1.220 TJ − Temperature − °C 0 25 50 75 100 125 TJ − Temperature − °C Figure 3. Figure 4. Submit Documentation Feedback 3 LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 TYPICAL CHARACTERISTICS (continued) MINIMUM OPERATING CURRENT vs INPUT-OUTPUT DIFFERENTIAL VOLTAGE OUTPUT CURRENT LIMIT vs INPUT-OUTPUT DIFFERENTIAL VOLTAGE 8 1.00 TJ = 125°C 6 TJ = 25°C IO – Output Current – A Minimum Operating Current − mA 7 5 TJ = 25°C 4 3 2 0.80 0.60 TJ = 125°C 0.40 0.20 1 0.00 0 0 5 10 15 20 25 30 35 0 40 15 20 25 Figure 5. Figure 6. OUTPUT NOISE VOLTAGE vs TEMPERATURE RIPPLE REJECTION vs TEMPERATURE 0.004 30 35 40 90 VI = 15 Vdc and 1 VPP (120 Hz) VO = 10 V IL = 100 mA CL = 1 µF Ci = 0.1 µF 85 80 0.003 Ripple Rejection − dB Ouput Noise Voltage − % VO 10 VI – VO – Input-Output Differential – V VI − VO − Input-Output Differential − V 0.002 0.001 75 CADJ = 10 µF 70 65 60 CADJ = 0 µF 55 VI = 15 V VO = 10 V IL = 50 mA Bandwidth = 10 Hz to 10 kHz 50 45 0.000 0 25 50 75 100 125 0 TJ − Temperature − °C 25 70 TJ − Temperature − °C Figure 7. 4 5 Figure 8. Submit Documentation Feedback 85 125 LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 TYPICAL CHARACTERISTICS (continued) RIPPLE REJECTION vs FREQUENCY INPUT-OUTPUT VOLTAGE DIFFERENTIAL vs TEMPERATURE 2.5 (VI − V O ) − Input-Output Voltage Differential − V 100 90 80 70 60 50 CADJ = 0 µF 40 30 20 10 VI = 15 Vdc and Vac = 1 VPP VO = 10 V IL = 100 mA CL = 1 µF Ci = 0.1 µF 0 10 Hz 100 Hz 1 kHz 2 IL = 500 mA 1.5 IL = 100 mA 1 0.5 0 10 kHz 0 100 kHz 25 50 75 100 125 TJ − Temperature − °C Frequency Figure 9. Figure 10. OUTPUT IMPEDANCE vs FREQUENCY 10.00 VI = 15 V VO = 10 V IL = 100-mA dc and 10-mA RMS CADJ = 0 µF Output Impedance − Ω Ripple Rejection − dB CADJ = 10 µF 1.00 CADJ = 10 µF 0.10 0.01 10 Hz 50 Hz 100 Hz 500 Hz 1 kHz 5 kHz 10 kHz 50 kHz 100 kHz 150 kHz Frequency Figure 11. Submit Documentation Feedback 5 LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 TYPICAL CHARACTERISTICS (continued) ∆V O − Output Voltage Change − V LINE TRANSIENT RESPONSE vs TIME 1 0.8 0.6 0.4 0.2 0 VO = 10 V VI = 15 V, ∆VI = +1 V IL = 50 mA TJ = 25°C CL = 0 µF CADJ = 0 µF −0.2 −0.4 −0.6 −0.8 ∆V I − Input Voltage Change − V −1 1.2 1 0.8 0.6 0.4 0.2 0 −1.0 −0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Time − µs Figure 12. ∆V O − Output Voltage Change − V LOAD TRANSIENT RESPONSE vs TIME 5.0 4.0 3.0 2.0 VI = 15 V VO = 10 V IL = 50 mA ∆IL = +500 mA CL = 1 µF CADJ = 10 µF 1.0 0 −1.0 −2.0 CL = 0 µF CADJ = 0 µF ∆ I O − Output Current Change − A −3.0 −4.0 0.6 0.5 0.4 0.3 0.2 0.1 0 −0.1 −0.2 −10 −5 0 5 10 15 20 Time − µs Figure 13. 6 Submit Documentation Feedback 25 30 35 LM317M 3-TERMINAL ADJUSTABLE REGULATOR www.ti.com SLVS297O – APRIL 2000 – REVISED JULY 2006 APPLICATION INFORMATION D1 (Note E) 1N4002 VI Input Output LM317M R1 240 Ω Adjust Ci (Note A) 0.1 µF VO (Note C) Vref = 1.25 V IAdj D2 (Note E) 1N4002 CO (Note B) 1.0 µF CADJ (Note D) R2 NOTES: A. Ci is not required, but is recommended, particularly if the regulator is not in close proximity to the power-supply filter capacitors. A 0.1-µF disc or 1-µF tantalum provides sufficient bypassing for most applications, especially when adjustment and output capacitors are used. B. CO improves transient response, but is not needed for stability. C. VO is calculated as shown: ǒ VO + V ref 1 ) R2 R1 Ǔ ) (I Adj R 2) Because IAdj typically is 50 µA, it is negligible in most applications. D. CADJ is used to improve ripple rejection; it prevents amplification of the ripple as the output voltage is adjusted higher. If CADJ is used, it is best to include protection diodes. E. If the input is shorted to ground during a fault condition, protection diodes provide measures to prevent the possiblility of external capacitors discharging through low-impedance paths in the IC. By providing low-impedance discharge paths for CO and CADJ, respectively, D1 and D2 prevent the capacitors from discharging into the output of the regulator. Figure 14. Adjustable Voltage Regulator Submit Documentation Feedback 7 PACKAGE OPTION ADDENDUM www.ti.com 19-Dec-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty LM317MDCY ACTIVE SOT-223 DCY 4 80 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1YEAR LM317MDCYG3 ACTIVE SOT-223 DCY 4 80 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1YEAR LM317MDCYR ACTIVE SOT-223 DCY 4 2500 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1YEAR LM317MDCYRG3 ACTIVE SOT-223 DCY 4 2500 Green (RoHS & no Sb/Br) CU SN Level-2-260C-1YEAR LM317MKTPR NRND PFM KTP 2 3000 CU SN Level-1-220C-UNLIM LM317MKTPRG3 NRND PFM KTP 2 3000 Green (RoHS & no Sb/Br) CU SN Level-1-260C-UNLIM LM317MKVURG3 ACTIVE PFM KVU 3 2500 Green (RoHS & no Sb/Br) CU SN Level-3-260C-168 HR TBD LM317MQDCYR ACTIVE SOT-223 DCY 4 2500 LM317MQDCYRG3 ACTIVE SOT-223 DCY 4 2500 Green (RoHS & no Sb/Br) TBD LM317MQKTPR OBSOLETE PFM KTP 2 TBD Lead/Ball Finish MSL Peak Temp (3) SNPB Level-2-235C-1 YEAR CU SN Level-2-260C-1 YEAR Call TI Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. 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Addendum-Page 1 MECHANICAL DATA MPDS094A – APRIL 2001 – REVISED JUNE 2002 DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE 6,70 (0.264) 6,30 (0.248) 3,10 (0.122) 2,90 (0.114) 4 0,10 (0.004) M 3,70 (0.146) 3,30 (0.130) 7,30 (0.287) 6,70 (0.264) Gauge Plane 1 2 0,84 (0.033) 0,66 (0.026) 2,30 (0.091) 4,60 (0.181) 1,80 (0.071) MAX 3 0°–10° 0,10 (0.004) M 0,25 (0.010) 0,75 (0.030) MIN 1,70 (0.067) 1,50 (0.059) 0,35 (0.014) 0,23 (0.009) Seating Plane 0,08 (0.003) 0,10 (0.0040) 0,02 (0.0008) 4202506/B 06/2002 NOTES: A. B. C. D. All linear dimensions are in millimeters (inches). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC TO-261 Variation AA. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MPSF001F – JANUARY 1996 – REVISED JANUARY 2002 KTP (R-PSFM-G2) PowerFLEX PLASTIC FLANGE-MOUNT PACKAGE 0.080 (2,03) 0.070 (1,78) 0.243 (6,17) 0.233 (5,91) 0.228 (5,79) 0.218 (5,54) 0.050 (1,27) 0.040 (1,02) 0.010 (0,25) NOM 0.130 (3,30) NOM 0.215 (5,46) NOM 0.247 (6,27) 0.237 (6,02) Thermal Tab (See Note C) 0.287 (7,29) 0.277 (7,03) 0.381 (9,68) 0.371 (9,42) 0.100 (2,54) 0.090 (2,29) 0.032 (0,81) MAX Seating Plane 0.090 (2,29) 0.180 (4,57) 0.004 (0,10) 0.005 (0,13) 0.001 (0,02) 0.031 (0,79) 0.025 (0,63) 0.010 (0,25) M 0.010 (0,25) NOM Gage Plane 0.047 (1,19) 0.037 (0,94) 0.010 (0,25) 2°–ā6° 4073388/M 01/02 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. The center lead is in electrical contact with the thermal tab. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15). Falls within JEDEC TO-252 variation AC. 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