LM217L, LM317L Low current 1.2 to 37 V adjustable voltage regulators Datasheet - production data Description TO-92 Bag TO-92 Tape and reel Ammopack The LM217L/LM317L are monolithic integrated circuits in SO-8 and TO-92 packages intended for use as positive adjustable voltage regulators. They are designed to supply up to 100 mA of load current with an output voltage adjustable over a 1.2 to 37 V range.The nominal output voltage is selected by means of only a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. SO-8 Features * Outuput voltage range: 1.2 to 37 V * Output current up to 100 mA * Line regulation typ. 0.01% * Load regulation typ. 0.1% * Thermal overload protection * Short-circuit protection * Output transition safe area compensation * Floating operation for high voltage applications Table 1. Device summary Order codes SO-8 (tape and reel) TO-92 (Bag) TO-92 (Ammopack) LM217LD13TR LM317LD13TR TO-92 (tape and reel) LM217LZ-TR LM317LZ September 2015 This is information on a product in full production. LM317LZ-AP DocID2168 Rev 7 LM317LZ-TR 1/23 www.st.com Contents LM217L, LM317L Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 9 2/23 8.1 TO-92 Bag package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8.2 TO-92 Ammopack package information . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.3 TO-92 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.4 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8.5 SO-8 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 DocID2168 Rev 7 LM217L, LM317L 1 Diagram Diagram Figure 1. Schematic diagram DocID2168 Rev 7 3/23 23 Pin configuration 2 LM217L, LM317L Pin configuration Figure 2. Pin connections (top view for SO-8, bottom view for TO-92) PIN 1 = ADJUST PIN 2 = IN PIN 3 = OUT SO-8 4/23 TO-92 DocID2168 Rev 7 LM217L, LM317L 3 Maximum ratings Maximum ratings Table 2. Absolute maximum ratings Symbol VI-VO Parameter Input-output differential voltage PD Power dissipation TOP Operating junction temperature range TSTG Storage temperature range Value Unit 40 V Internally limited mW for LM217L -40 to 125 for LM317L 0 to 125 C -55 to 150 C Table 3. Thermal data Symbol Parameter SO-8 RthJC Thermal resistance junction-case (max) 20 RthJA Thermal resistance junction-ambient (max) 55(1)(2) TO-92 Unit C/W 200 1. Considering 6 cm of copper Board heat-sink. 2. Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the printed circuit board is available for heat-sinking. The external dimensions are the same as for the standard SO-8. Figure 3. Test circuit ,Q 2XW $GM *,3*59 DocID2168 Rev 7 5/23 23 Electrical characteristics 4 LM217L, LM317L Electrical characteristics (Refer to the test circuits, TJ = - 40 to 125C, VI - VO = 5 V, IO = 40 mA, unless otherwise specified) Table 4. Electrical characteristics of LM217L Symbol VO Parameter Line regulation Test conditions VI - VO = 3 to 40 V, IO = 20 mA VO 5 V, IO = 5 to 100 mA VO Min. TJ = 25C IADJ Adjustment pin current VI - VO = 3 to 40 V, IO = 5 to 100 mA Pd < 625 mW VREF Reference voltage VI - VO = 3 to 40 V, IO = 10 to 100 mA Pd < 625 mW 0.02 0.02 0.05 5 15 20 50 0.1 0.3 0.3 1 50 100 A 0.2 5 A 1.25 1.3 V % 1.2 Output voltage temperature stability IO(min) Minimum load current IO(max) Maximum output current 0.7 VI - VO = 40 V 3.5 VI - VO = 3 to 13 V 100 5 mA 200 50 Output noise voltage B = 10 Hz to 10 KHz, TJ = 25C Supply voltage rejection (1) TJ = 25C f = 120 Hz DocID2168 Rev 7 % mA VI - VO = 40 V 1. CADJ is connected between adjust pin and ground. 6/23 0.01 mV TJ = 25C Adjustment pin current SVR Unit %/V TJ = 25C IADJ eN Max. Load regulation VO 5 V, IO = 5 to 100 mA VO/VO Typ. 0.003 CADJ = 0 CADJ = 10 F % 65 dB 66 80 LM217L, LM317L Electrical characteristics (Refer to the test circuits, TJ = 0 to 125C, VI - VO = 5 V, IO = 40 mA, unless otherwise specified) Table 5. Electrical characteristics of LM317L Symbol VO Parameter Line regulation Test conditions VI - VO = 3 to 40 V, IO = 20 mA VO 5 V, IO = 5 to 100 mA VO Min. TJ = 25C 0.01 0.04 0.02 0.07 5 25 20 70 0.1 0.5 0.3 1.5 50 100 A 0.2 5 A 1.25 1.3 V mV TJ = 25C Adjustment pin current IADJ Adjustment pin current VI - VO = 3 to 40 V, IO = 5 to 100 mA Pd < 625 mW VREF Reference voltage VI - VO = 3 to 40 V, IO = 5 to 100 mA Pd < 625 mW % 1.2 Output voltage temperature stability IO(min) Minimum load current IO(max) Maximum output current SVR Unit %/V TJ = 25C IADJ eN Max. Load regulation VO 5 V, IO = 5 to 100 mA VO/VO Typ. 0.7 VI - VO = 40 V 3.5 VI - VO = 3 to 13 V 100 % 5 mA 200 mA VI - VO = 40 V 50 Output noise voltage B = 10 Hz to 10 KHz, TJ = 25C Supply voltage rejection (1) TJ = 25C f = 120 Hz 0.003 CADJ = 0 CADJ = 10 F % 65 dB 66 80 1. CADJ is connected between adjust pin and ground. DocID2168 Rev 7 7/23 23 Typical performance 5 LM217L, LM317L Typical performance Figure 4. Current limit ,R P$ Figure 5. Minimum operating current ,R P$ 7- & 7- & 8/23 9LQ 9R 9 DocID2168 Rev 7 9LQ 9R 9 LM217L, LM317L 6 Application information Application information The LM317L provides an internal reference voltage of 1.25 V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see Figure 6.), giving an output voltage VO of: VO = VREF (1 + R2/R1) + IADJ R2 The device was designed to minimize the term IADJ (100 A max) and to maintain it very constant with line and load changes. Usually, the error term IADJ x R2 can be neglected. To obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is insufficient, the output voltage will rise. Since the LM317L is a floating regulator and "sees" only the input-to-output differential voltage, supplies of very high voltage with respect to ground can be regulated as regulator as the maximum input-to-output differential is not exceeded. Furthermore, programmable regulators are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. In order to optimize the load regulation, the current set resistor R1 (see Figure 6.) should be tied as close as possible to the regulator, while the ground terminal of R2 should be near the ground of the load to provide remote ground sensing. DocID2168 Rev 7 9/23 23 Application circuits 7 LM217L, LM317L Application circuits Figure 6. Basic adjustable regulator "EK *,3*59 Figure 7. Voltage regulator with protection diodes "EK *,3*59 Figure 8. Slow turn-on 15 V regulator $GM *,3*59 10/23 DocID2168 Rev 7 LM217L, LM317L Application circuits Figure 9. Current regulator ,2 95()5,$'- 95 *,3*59 Figure 10. 5 V Electronic shut-down regulator $GM *,3*59 Figure 11. Digitally selected outputs $GM 5 VHWVPD[LPXP92 DocID2168 Rev 7 *,3*59 11/23 23 Package information 8 LM217L, LM317L Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. 8.1 TO-92 Bag package information Figure 12. TO-92 Bag package outline 0102782 D 12/23 DocID2168 Rev 7 LM217L, LM317L Package information Table 6. TO-92 Bag mechanical data mm Dim. Min. Typ. A 4.32 4.95 b 0.36 0.51 D 4.45 4.95 E 3.30 3.94 e 2.41 2.67 e1 1.14 1.40 L 12.70 15.49 R 2.16 2.41 S1 0.92 1.52 W 0.41 0.56 V 8.2 Max. 5 TO-92 Ammopack package information Figure 13. TO-92 Ammopack package outline T T A1 A1 H1 H1 H H T2 T2 T1 T1 delta delta H H H3 H3 H0 H0 L L d d W2 W2 l1 l1 W W0 W W0 W1 W1 F1 F1 F2 F2 F3 F3 P2 P2 P0 P0 D0 D0 tt 0050910S_Rev_U 0050910S_Rev_U DocID2168 Rev 7 13/23 23 Package information LM217L, LM317L Table 7. TO-92 Ammopack mechanical data mm Dim. Min. Typ. A1 4.80 T 3.80 T1 1.60 T2 2.30 d 0.45 0.47 0.48 P0 12.50 12.70 12.90 P2 5.65 6.35 7.05 F1, F2 2.40 2.50 2.94 F3 4.98 5.08 5.48 delta H -2.00 W 17.50 18.00 19.00 W0 5.5 6.00 6.5 W1 8.50 9.00 9.25 2.00 W2 0.50 H 18.50 21 H3 0.5 1 2 H0 15.50 16.00 18.8 25.0 27.0 4.00 4.20 H1 D0 14/23 Max. 3.80 t 0.90 L 11.00 l1 3.00 delta P -1.00 DocID2168 Rev 7 1.00 LM217L, LM317L 8.3 Package information TO-92 packing information Figure 14. TO-92 tape and reel outline delta P T A1 T2 H1 T1 delta H H H0 d L W2 l1 W W0 W1 F1 F2 P2 D0 t P0 DocID2168 Rev 7 15/23 23 Package information LM217L, LM317L Table 8. TO-92 tape and reel mechanical data mm Dim. Min. Typ. A1 4.80 T 3.80 T1 1.60 T2 2.30 d 0.45 0.47 0.48 P0 12.50 12.70 12.90 P2 5.65 6.35 7.05 F1, F2 2.40 2.50 2.94 F3 4.98 5.08 5.48 delta H -2.00 W 17.50 18.00 19.00 W0 5.5 6.00 6.5 W1 8.50 9.00 9.25 2.00 W2 0.50 H 18.50 21 H3 0.5 1 2 H0 15.50 16.00 18.8 25.0 27.0 4.00 4.20 H1 D0 16/23 Max. 3.80 t 0.90 L 11.00 l1 3.00 delta P -1.00 O1 352 355 358 O2 28 30 32 u 44 47 50 DocID2168 Rev 7 1.00 LM217L, LM317L 8.4 Package information SO-8 package information Figure 15. SO-8 package outline 0016023_G_FU DocID2168 Rev 7 17/23 23 Package information LM217L, LM317L Table 9. SO-8 mechanical data mm Dim. Min. Typ. A 1.75 A1 0.10 0.25 A2 1.25 b 0.31 0.51 b1 0.28 0.48 c 0.10 0.25 c1 0.10 0.23 D 4.80 4.90 5.00 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 h 0.25 0.50 L 0.40 1.27 L1 1.04 L2 0.25 k 0 8 ccc 18/23 Max. 0.10 DocID2168 Rev 7 LM217L, LM317L Package information Figure 16. SO-8 recommended footprint Footprint_0016023_G_FU DocID2168 Rev 7 19/23 23 Package information 8.5 LM217L, LM317L SO-8 packing information Figure 17. SO-8 tape and reel outline 20/23 DocID2168 Rev 7 LM217L, LM317L Package information Table 10. SO-8 tape and reel mechanical data mm Dim. Min. Typ. A Max. 330 C 12.8 D 20.2 N 60 13.2 T 22.4 Ao 8.1 8.5 Bo 5.5 5.9 Ko 2.1 2.3 Po 3.9 4.1 P 7.9 8.1 DocID2168 Rev 7 21/23 23 Revision history 9 LM217L, LM317L Revision history Table 11. Revision history Date Revision 16-Mar-2005 2 Add Tape & reel for TO-92. 23-Dec-2005 3 Mistake on ordering table in header. 18-May-2007 4 Order codes has been updated and the document has been reformatted. 5 Added TO-92 Ammopack package. Updated Section 6: Application information and Section 8: Package information. Added Section 8.5: SO-8 packing information. Minor text changes. 19-May-2015 6 Updated the features in cover page, Table 4: Electrical characteristics of LM217L, Table 5: Electrical characteristics of LM317L and Figure 4: Current limit. Added Table 3: Thermal data. Minor text changes. 17-Sep-2015 7 Updated Table 1: Device summary. Minor text changes. 20-May-2014 22/23 Changes DocID2168 Rev 7 LM217L, LM317L IMPORTANT NOTICE - PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST's terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers' products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. (c) 2015 STMicroelectronics - All rights reserved DocID2168 Rev 7 23/23 23