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ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor's product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. "Typical" parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. LM317M 3-Terminal 0.5A Positive Adjustable Regulator Features Description * * * * * * The LM317M is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500 mA over an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Output Current in Excess of 0.5 A Output Adjustable Between 1.2 V and 37 V Internal Thermal Overload Protection Internal Short-Circuit Current Limiting Output Transistor Safe Area Compensation Floating Operation for High Voltage Applications D-PAK 2 1 3 1. Adj 2. Output 3. Input TO-220 (Single Gauge) 12 3 Ordering Information Product Number Marking Package Packing Method Operating Temperature LM317MDTX LM317MDT TO-252 3L (D-PAK) Tape and Reel LM317MDTXM LM317MDT TO-252 3L (D-PAK) Tape and Reel LM317MT LM317M TO-220 3L (Single Gauge) Rail 0 to +125C * Refer to below unit orientation figure for TM / TF suffix packing. (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator September 2014 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Block Diagram Input V in 3 + - P rote ction Circ uitry V olta ge Re fe re nce R lim it 2 Vo Output 1 V ad j Figure 1. Block Diagram Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Values are at TA = 25C unless otherwise noted. Symbol VI - VO TJ TSTG Parameter Input-Output Voltage Differential Operating Junction Temperature Range Storage Temperature Range Value Unit 40 V 0 to +125 C -65 to +125 C Thermal Characteristics Values are at TA = 25C unless otherwise noted. Value Symbol PD Parameter LM317MT Power Dissipation LM317MDTX / LM317MDTXM(1),(2) Internally Limited Unit W RJC Thermal Resistance, Junction to Case 5 - C/W RJA Thermal Resistance, Junction to Ambient 81 100 C/W Notes: 1. Thermal resistance test board - size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P), JEDEC standard: JESD51-3, JESD51-7 2. Assume no ambient airflow (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 2 VI - VO = 5 V, IO = 0.1 A, 0C TJ +125C, PDMAX = 7.5 W, unless otherwise specified. Symbol Rline Rload IADJ Parameter Line Regulation(3) Load Regulation(3) Conditions Min. Typ. TA = +25C, 3 V VI -VO 40 V 0.01 0.04 0.02 0.07 TA = +25C, 10 mA IO 0.5 A, VO 5 V 5 25 mV TA = +25C, 10 mA IO 0.5 A, VO 5 V 0.1 0.5 %/VO 10 mA IO 0.5 A, VO 5 V 20 70 mV 0.3 1.5 %/VO - 50 100 A 0.2 5.0 A 1.25 1.30 V Adjustment Pin Current 3 V VI - VO 40 V, 10 mA IO 0.5 A, PD < PDMAX VREF Reference Voltage 3 V < VI - VO < 40 V, 10 mA IO 0.5 A, PD < PDMAX STT Temperature Stability TJ = 0C to +125C 0.7 Minimum Load Current to Maintain Regulation VI - VO = 40 V 3.5 eN RR ST 1.20 VI - VO 15 V, PD < PDMAX 0.5 0.9 Maximum Output Current VI - VO = 40 V PD < PDMAX, TA = +25C 0.15 0.25 RMS Noise, % of VOUT TA = +25C, 10 Hz < f < 10 kHz Ripple Rejection Long-Term Stability %/ V 10 mA IO 0.5 A, VO 5V Adjustment Pin Current Change IO(MAX) Unit 3 V VI -VO 40 V IADJ IL(MIN) Max. VO = 10 V, f = 120 Hz, without CADJ %/VO 10.0 A 0.003 66 mA %/VO 65 dB VO = 10 V, f = 120 Hz, CADJ = 10 F(4) 80 TJ = +125C, 1000 Hours 0.3 1 %/ 1000Hrs Notes: 3. Load and Line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 4. CADJ, when used, is connected between the adjustment pin and ground. (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 3 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Electrical Characteristics Figure 2. Minimum Load Current Figure 3. Peak Output Current vs. Input-Output Differential Voltage Figure 4. Adjustment Pin Current vs. Temperature Figure 5. Ripple Rejection vs. Frequency Figure 6. Load Regulation vs. Temperature Figure 7. Line Regulation vs. Temperature (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 4 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Typical Performance Characteristics LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Typical Performance Characteristics (Continued) Figure 8. Output Voltage vs. Temperature (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 Figure 9. Thermal Shutdown www.fairchildsemi.com 5 D1 1N4002 Input VO LM317M Output + 120 1.0uF VADJ 1K 720 KSP2222 TTL CONTROL MINIMUM VO = 1.25V Figure 10. 15V Electronic Shutdown Regulator(5) Note: 5. D1 protects the device during an input short circuit. VO LM317M Output Input 240 1N4001 50K VADJ KSP2907 R2 + 1.0uF Figure 11. Slow Turn-On Regulator (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 6 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Typical Application IO Input LM317M R1 VO R2 Output VADJ IADJ V REF- + I I = --------------- 1.25V ---------------- R1 OMAX ADJ R1 V REF - + I 1.25V I = -------------------- --------------------OMAX R1 + R2 ADJ R1 + R2 5mA < I < 500mA O Figure 12. Current Regulator (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 7 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Typical Application (Continued) LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Physical Dimensions ) $ 0,1 ) 0,1 ) & 0,1 0$; 0,1 /$1'3$77(515(&200(1'$7,21 ) % ) ) 0,1 ) 6(('(7$,/$ % ) *$*(3/$1( ) 127(681/(6627+(5:,6(63(&,),(' $ 127&203/,$1772-('(&729$5,$7,21$% 0$; % $//',0(16,21$5(,10,//,0(7(5 & ',0(16,216$5((;&/86,9(2)%855602/')/$6+ 6($7,1*3/$1( $1'7,(%$5(;7586,216 ' /$'3$77(513(5,3&$$7$1'$5' 723;1 ( '5$:,1*),/(1$0(0.772'5(9 ) '2(6127&203/<-('(&67$1'$5'9$/8( * )$,5&+,/'6(0,&21'8&725 '(7$,/$ 6&$/( 0,1 ) Figure 13. 3LEAD, TO-252, JEDEC TO-252 VAR. AB, SURFACE MOUNT (DPAK) (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 8 LM317M -- 3-Terminal 0.5A Positive Adjustable Regulator Physical Dimensions (Continued) Figure 14. TO-220, MOLDED, 3LEAD, JEDEC VARIATION AB (c) 2003 Fairchild Semiconductor Corporation LM317M Rev. 1.1.0 www.fairchildsemi.com 9 TRADEMARKS The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not intended to be an exhaustive list of all such trademarks. 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