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K A 3 1 September 2014 7 / L M KA317 / LM317 3 1 7 3-Terminal Positive Adjustable Regulator — 3 - T e r m Description Features i n a • Output-Current In Excess of 1.5 A This monolithic integrated circuit is an adjustable 3-termi- l nal positive-voltage regulator designed to supply more P • Output-Adjustable Between 1.2 V and 37 V o than 1.5 A of load current with an output voltage adjust- s • Internal Thermal Overload Protection able over a 1.2 V to 37 V range. It employs internal cur- it i • Internal Short-Circuit Current Limiting rent limiting, thermal shutdown, and safe area v e • Output-Transistor Safe Operating Area Compensation compensation. A • TO-220 Package d TO-220 j u Output s t a b l e R 1 e g 1. Adj 2. Output 3. Input u l a t o r Ordering Information Product Number Package Packing Method Operating Temperature LM317T TO-220 (Single Gauge) Rail 0°C to +125°C KA317TU TO-220 (Dual Gauge) Rail 0°C to +125°C Block Diagram Vin 3 Input + - Voltage Protection Reference Circuitry RRlLimIMiItT 2 Vo Output 1 VVAaADddJjj Figure 1. Block Diagram © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2

K A Absolute Maximum Ratings 3 1 7 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera- / ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi- L tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The M absolute maximum ratings are stress ratings only. Values are at T = 25°C unless otherwise noted. 3 A 1 7 Symbol Parameter Value Unit — VI - VO Input-Output Voltage Differential 40 V 3 - T Lead Temperature 230 °C T LEAD e T Operating Junction Temperature Range 0 to +125 °C rm J T Storage Temperature Range -65 to +125 °C in STG a ΔVO/ΔT Temperature Coefficient of Output Voltage ±0.02 %/°C l P o s i t i v Thermal Characteristics e A Values are at T = 25°C unless otherwise noted. d A j u Symbol Parameter Value Units s t a P Power Dissipation Internally Limited W b D l RθJA Thermal Resistance, Junction to Ambient 80 °C/W e R RθJC Thermal Resistance, Junction to Case 5 °C/W eg u l a t o r © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2 2

K A Electrical Characteristics 3 1 7 VI-VO = 5 V, IO = 0.5 A, 0°C ≤ TJ ≤ +125°C, IMAX = 1.5 A, PDMAX = 20 W, unless otherwise specified. / L Symbol Parameter Conditions Min. Typ. Max. Unit M 3 T = +25°C, 3 V ≤ V - V ≤ 40 V 0.01 0.04 1 R Line Regulation(1) A I O %/ V 7 LINE 3 V ≤ VI - VO ≤ 40 V 0.02 0.07 — T = +25°C, VO < 5 V 18 25 mV 3 A - R Load Regulation(1) 10mA ≤ IO ≤ IMAX VO ≥ 5 V 0.4 0.5 %/VO Ter LOAD VO < 5 V 40 70 mV m 10 mA ≤ IO ≤ IMAX VO ≥ 5 V 0.8 1.5 %/VO ina l I Adjustable Pin Current 46 100 μA P ADJ o Adjustable Pin Current 3 V ≤ V - V ≤ 40 V, s ΔI I O 2.0 5.0 μA i ADJ Change 10 mA ≤ IO ≤ IMAX, PD ≤ PMAX tiv 3 V ≤ V - V ≤ 40 V, e VREF Reference Voltage 10 mA ≤IN I ≤O I P ≤ P 1.20 1.25 1.30 V A O MAX, D MAX d ST Temperature Stability 0.7 %/V ju T O s Minimum Load Current t I V - V = 40 V 3.5 12.0 mA a L(MIN) to Maintain Regulation I O b l e Maximum Output VPID - ≤ V POM ≤A 1X5 V, 1.5 2.2 Re I T = 25°C A g O(MAX) Current A V - V ≤ 40 V, u PI ≤ PO 0.3 la D MAX t o e RMS Noise,% of V T = +25°C, 10 Hz ≤ f ≤ 10 kHz 0.003 0.010 %/V r N OUT A O without C 60 V = 10 V, ADJ RR Ripple Rejection(2) O dB f = 120 Hz C = 10 μF 66 75 ADJ Long-Term Stability, T = +25°C for End Point ST A 0.3 1.0 % T = T Measurements, 1000 HR J HIGH Notes: 1. Load and line regulation are specified at constant junction temperature. Change in V due to heating effects must be D taken into account separately. Pulse testing with low duty is used (P = 20 W). MAX 2. C , when used, is connected between the adjustment pin and ground. ADJ © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2 3

K A Typical Performance Characteristics 3 1 7 / L M 3 ATION(%) NT (uA) 17 — E DEVI CURRE 3-Te OLTAG MENT rmin UTPUT V ADJUST al Po O s i t i v TEMPERATURE (°C) TEMPERATURE (°C) e A Figure 2. Load Regulation Figure 3. Adjustment Current d j u s t a b l e V) R ERENTIAL( OLTAGE(V) egula DIFF CE V tor T N U E P R T E U F O E T- R U P N I TEMPERATURE (°C) TEMPERATURE (°C) Figure 4. Dropout Voltage Figure 5. Reference Voltage 3 T = 25oC A) VA = 1.25 V, Shorthed to GND T ( OUT N E R R U 2 C T UI C CIR T R HO 1 S I - SC 0 0 5 10 15 20 25 30 35 40 V-V - INPUT OUTPUT VOLTAGE [V] I O Figure 6. Short Circuit vs. Input-Output Voltage © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2 4

K A Typical Application(3) 3 1 7 / L M 3 1 7 Input VI KA317 / LM317 VO Output — V 3 ADJ - T e r Ci Co m 0.1 μF IADJ R1 1 μF i n R2 adj 240 Ω al P o s i t i v e A d V = 1.25 V (1 + R / R ) + I R O 2 1 ADJ 2 ju s t a b Figure 7. Typical Application le Note: R e 3. CI is required when the regulator is located an appreciable distance from power supply filter. CO is not needed for g stability; however, it does improve transient response. Since I is controlled to less than 100 μA, the error u ADJ l a associated with this term is negligible in most applications. t o r © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2 5

K A Physical Dimensions 3 1 7 / L M 3 1 7 — 3 - T e r m i n a l P o s i t i v e A d j u s t a b l e R e g u l a t o r Figure 8. TO-220, MOLDED, 3LEAD, JEDEC VARIATION AB © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA317 / LM317 Rev. 1.2.2 6

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