, NCV317L 1 ma able Output, Positive Voltage Regulator The is an adjustable 3terminal positive voltage regulator capable of supplying in excess of 1 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. Further, it employs internal current limiting, thermal shutdown and safe area compensation, making them essentially blowout proof. The serves a wide variety of applications including local, on card regulation. This device can also be used to make a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the can be used as a precision current regulator. Features Output Current in Excess of 1 ma Output able Between 1.2 V and 37 V Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor SafeArea Compensation Floating Operation for High Voltage Applications Standard 3Lead Transistor Package Eliminates Stocking Many Fixed Voltages NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AECQ1 Qualified and PPAP Capable These are PbFree Devices C in *.1 F Simplified Application 24 CO ** 1. F LOW CURRENT THREETERMINAL ADJUSTABLE POSITIVE VOLTAGE REGULATOR 8 SOIC8 D SUFFIX CASE 751 TO92 Z SUFFIX CASE 29 1 Pin Pin 1. 2. 3. 4. 5. N.C. 6. 7. 8. N.C. 1 1 2 2 3 3 STRAIGHT LEAD BENT LEAD BULK PACK TAPE & REEL AMMO PACK 1. 2. 3. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. * C in is required if regulator is located an appreciable ** distance from power supply filter. ** C O is not needed for stability, however, ** it does improve transient response. Vout 1.25 V 1 R1 R2 Since is controlled to less than 1 A, the error associated with this term is negligible in most applications. Semiconductor Components Industries, LLC, 213 May, 217 Rev. 13 1 Publication Order Number: /D
, NCV317L MAXIMUM RATINGS Rating Symbol Value Unit InputOutput Voltage Differential V I V O 4 Vdc Power Dissipation Case 29 (TO92) T A = 25 C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase Case 751 (SOIC8) (Note 1) T A = 25 C Thermal Resistance, JunctiontoAmbient Thermal Resistance, JunctiontoCase P D R JA R JC P D R JA R JC Internally Limited 16 83 Internally Limited 18 45 Maximum Junction Temperature T JMAX 15 C Storage Temperature Range T stg 65 to 15 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. SOIC8 JunctiontoAmbient Thermal Resistance is for minimum recommended pad size. Refer to Figure 24 for Thermal Resistance variation versus pad size. 2. This device series contains ESD protection and exceeds the following tests: Human Body Model, 2 V per MIL STD 883, Method 315. Machine Model Method, 2 V. W C/W C/W W C/W C/W 3 3 3 3.k 3 7 6.8V 6.8V 35 18k 13 8.67k 5 2k 5.1k 4 6.3V 18 18 2.k 6.k 1 p F 1 p F 6 2.5 2.4k 12.8k 5 Figure 1. Representative Schematic Diagram 2
, NCV317L ELECTRICAL CHARACTERISTICS (V I V O = 5. V; I O = 4 ma; T J = T low to T high (Note 3); I max and P max (Note 4); unless otherwise noted.) Line Regulation (Note 5) T A = 25 C, 3. V V I V O 4 V Load Regulation (Note 5), T A = 25 C 1 ma I O I max V O 5. V V O 5. V, LB, NCV317LB Characteristics Figure Symbol Min Typ Max Unit 1 Reg line.1.4 %/V 2 Reg load ment Pin Current 3 5 1 A ment Pin Current Change 2.5 V V I V O 4 V, P D P max 1 ma I O I max Reference Voltage 3. V V I V O 4 V, P D P max 1 ma I O I max 5..1 25.5 mv % V O 1, 2.2 5. A 3 1.2 1.25 1.3 V Line Regulation (Note 5), 3. V V I V O 4 V 1 Reg line.2.7 %/V Load Regulation (Note 5) 1 ma I O I max V O 5. V V O 5. V 2 Reg load Temperature Stability (T low T J T high ) 3 T S.7 % V O Minimum Load Current to Maintain Regulation (V I V O = 4 V) 3 I Lmin 3.5 1 ma 2.3 7 1.5 mv % V O Maximum Output Current V I V O 6.25 V, P D P max, Z Package V I V O 4 V, P D P max, T A = 25 C, Z Package 3 I max 1 2 2 ma RMS Noise, % of V O T A = 25 C, 1 Hz f 1 khz N.3 % V O Ripple Rejection (Note 6) V O = 1.2 V, f = 12 Hz C Adj = 1 F, V O = 1. V 4 RR Thermal Shutdown (Note 7) 18 C Long Term Stability, T J = T high (Note 8) T A = 25 C for Endpoint Measurements 6 8 8 3 S.3 1. %/1. k Hrs. 3. T low to T high = to 125 C for 4 to 125 C for B, NCV317LB 4. I max = 1 ma P max = 625 mw 5. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. 6. C Adj, when used, is connected between the adjustment pin and ground. 7. Thermal characteristics are not subject to production test. 8. Since LongTerm Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability from lot to lot. db 3
, NCV317L * V CC Line Regulation (%/V) = V OH - V OL x 1 V OL V IH V IL V OH V OL C in.1 F 24 C O 1 F R L * Pulse Testing Required: Duty Cycle is suggested. R2 1 % Figure 2. Line Regulation and /Line Test Circuit * Load Regulation (mv) = V O (min Load) -V O (max Load) Load Regulation (% V O ) = V O (min Load) - V O (max Load) V O (min Load) I L X 1 V O (min Load) V O (max Load) C in.1 F 24 C O 1. F * R L (max Load) R L (min Load) * Pulse Testing Required: Duty Cycle is suggested. Figure 3. Load Regulation and /Load Test Circuit I L V I C in.1 F 24 C O 1 F R L V O I SET Pulse Testing Required: Duty Cycle is suggested. To Calculate : = I SET 1.25 V Assume I SET = 5.25 ma Figure 4. Standard Test Circuit 4
, NCV317L 14.3V 4.3V f = 12 Hz Vout = 1.25 V 24 D 1 * 1N42 R L C in.1 F C O 1 F V O 1.65K ** 1 F * D 1 Discharges C Adj if Output is Shorted to Ground. Figure 5. Ripple Rejection Test Circuit **C Adj provides an AC ground to the adjust pin., OUTPUT VOLTAGE CHANGE (%) Δ.4.2 -.2 -.4 -.6 -.8-1. = 45 V = 5. V I L = 5. ma to 4 ma = 1 V = 5. V I L = 5. ma to 1 ma -5-25 25 5 75 1 125 15 RR, RIPPLE REJECTION (db) 8 7 6 5 I L = 4 ma f = 12 Hz = 1 V = 14 V to 24 V -5-25 25 5 75 1 125 15 Figure 6. Load Regulation Figure 7. Ripple Rejection IO, OUTPUT CURRENT (A).5 T J = 25 C.4.3.2 T J = 15 C.1 1 2 3 4 5 -, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V) Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V) 2.5 2. 1.5 1..5 I L = 5. ma I L = 1 ma -5-25 25 5 75 1 125 15 Figure 8. Current Limit Figure 9. Dropout Voltage 5
, NCV317L 5. 1 I B, QUIESCENT CURRENT (ma) 4.5 4. 3.5 3. 2.5 2. 1.5 1..5 T J = 55 C T J = 25 C T J = 15 C RR, RIPPLE REJECTION (db) 9 8 7 6 5 4 3 2 1 I L = 4 ma = 5. V ± 1. V PP = 1.25 V 1 2 3 4 -, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V) Figure 1. Minimum Operating Current 1 1 1. k 1 k 1 k 1. M f, FREQUENCY (Hz) Figure 11. Ripple Rejection versus Frequency 1.26 8, REFERENCE VOLTAGE (V) 1.25 1.24 1.23 1.22 = 4.2 V = I L = 5. ma -5-25 25 5 75 1 125 15, ADJUSTMENT PIN CURRENT ( μ A) 7 65 6 55 5 45 4 35 = 6.25 V = I L = 1 ma I L = 1 ma -5-25 25 5 75 1 125 15 Figure 12. Temperature Stability Figure 13. ment Pin Current Δ, OUTPUT VOLTAGE CHANGE (%).4.2 -.2 -.4 -.6 -.8 = 4.25 V to 41.25 V = I L = 5 ma NOISE VOLTAGE ( μ V) 1 8. 6. Bandwidth 1 Hz to 1 khz -1. -5-25 25 5 75 1 125 15 4. -5-25 25 5 75 1 125 15 Figure 14. Line Regulation Figure 15. Output Noise 6
, NCV317L Δ, INPUT Δ, OUTPUT VOTLAGE CHANGE (V) VOLTAGE DEVIATION (V) 1.5 1..5 -.5-1. -1.5 1..5 = 1 V I L = 5 ma T J = 25 C C L = 1. F; C Adj = 1 F C L = ; Without C Adj 1 2 3 4 t, TIME ( s) Figure 16. Line Transient Response Δ, OUTPUT VOLTAGE DEVIATION (V) I L, LOAD CURRENT (ma).3.2.1 -.1 -.2 -.3 1 5 C L = 1 F; C Adj = 1 F C L =.3 F; C Adj = 1 F = 15 V = 1 V I NL = 5 ma T J = 25 C 1 2 3 4 t, TIME ( s) Figure 17. Load Transient Response I L APPLICATIONS INFORMATION Basic Circuit Operation The is a 3terminal floating regulator. In operation, the develops and maintains a nominal 1.25 erence ( ) between its output and adjustment terminals. This reference voltage is converted to a programming current (I PROG ) by (see Figure 13), and this constant current flows through to ground. The regulated output voltage is given by: = (1 ) R 1 Since the current from the adjustment terminal ( ) represents an error term in the equation, the was designed to control to less than 1 A and keep it constant. To do this, all quiescent operating current is returned to the output terminal. This imposes the requirement for a minimum load current. If the load current is less than this minimum, the output voltage will rise. Since the is a floating regulator, it is only the voltage differential across the circuit which is important to performance, and operation at high voltages with respect to ground is possible. I PROG Load Regulation The is capable of providing extremely good load regulation, but a few precautions are needed to obtain maximum performance. For best performance, the programming resistor (R1) should be connected as close to the regulator as possible to minimize line drops which effectively appear in series with the reference, thereby degrading regulation. The ground end of R2 can be returned near the load ground to provide remote ground sensing and improve load regulation. External Capacitors A.1 F disc or 1. F tantalum input bypass capacitor (C in ) is recommended to reduce the sensitivity to input line impedance. The adjustment terminal may be bypassed to ground to improve ripple rejection. This capacitor (C Adj ) prevents ripple from being amplified as the output voltage is increased. A 1 F capacitor should improve ripple rejection about 15 db at 12 Hz in a 1 V application. Although the is stable with no output capacitance, like any feedback circuit, certain values of external capacitance can cause excessive ringing. An output capacitance (C O ) in the form of a 1. F tantalum or 25 F aluminum electrolytic capacitor on the output swamps this effect and insures stability. = 1.25 V Typical Figure 18. Basic Circuit Configuration 7
, NCV317L Protection Diodes When external capacitors are used with any IC regulator it is sometimes necessary to add protection diodes to prevent the capacitors from discharging through low current points into the regulator. Figure 14 shows the with the recommended protection diodes for output voltages in excess of 25 V or high capacitance values (C O > 1 F, C Adj > 5. F). Diode D 1 prevents C O from discharging thru the IC during an input short circuit. Diode D 2 protects against capacitor C Adj discharging through the IC during an output short circuit. The combination of diodes D 1 and D 2 prevents C Adj from discharging through the IC during an input short circuit. C in D 1 1N42 C O D2 C Adj 1N42 Figure 19. Voltage Regulator with Protection Diodes 25V V O 1.25k I O D 1 * To provide current limiting of I O to the system ground, the source of the current limiting diode must be tied to a negative voltage below - 7.25 V. = I DSS I Omax I DSS 5 1N5314 V SS * D1 1N914 D2 1N914 1N42 72 12 MPS2222 1.k 1. F Minimum = 1.25 V TTL Control V O < P OV 1.25 V V SS I Lmin - I P < I O < 1 ma - I P As shown O < I O < 95 ma Figure 2. able Current Limiter D 1 protects the device during an input short circuit. Figure 21. 5. V Electronic Shutdown Regulator I out 24 1N42 5k I outmax = 1.25 V MPS297 1 F I outmax = 1.25 V 5. ma < I out < 1 ma Figure 22. Slow TurnOn Regulator Figure 23. Current Regulator 8
, NCV317L R θja, THERMAL RESISTANCE JUNCTION-TO-AIR ( C/W) 17 3.2 15 13 11 9 7 5 3 R θja ÎÎÎ ÎÎ ÎÎÎ 2. oz. ÎÎÎÎ Graph represents symmetrical layout L P D(max) for T A = 5 C Copper 3. mm 1 2 3 4 5 L, LENGTH OF COPPER (mm) Figure 24. SOP8 Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length L 2.8 2.4 2. 1.6 1.2.8.4, MAXIMUM POWER DISSIPATION (W) P D ORDERING INFORMATION BDG Device Operating Temperature Range Package Shipping SOIC8 (PbFree) 98 Units / Rail BDR2G SOIC8 (PbFree) 25/Tape & Reel BZG TO92 (PbFree) 2 Units / Bag BZRAG TO92 (PbFree) 2 Tape & Reel BZRPG T J = 4 C to 125 C TO92 (PbFree) 2 Ammo Pack NCV317LBDG* SOIC8 (PbFree) 98 Units / Rail NCV317LBDR2G* SOIC8 (PbFree) 25/Tape & Reel NCV317LBZG* TO92 (PbFree) 2 Units / Bag NCV317LBZRAG* TO92 (PbFree) 2 Tape & Reel DG SOIC8 (PbFree) 98 Units / Rail DR2G SOIC8 (PbFree) 25/Tape & Reel ZG TO92 (PbFree) 2 Units / Bag ZRAG T J = C to 125 C TO92 (PbFree) 2 Tape & Reel ZREG TO92 (PbFree) 2 Tape & Reel ZRMG TO92 (PbFree) 2 Ammo Pack ZRPG TO92 (PbFree) 2 Ammo Pack For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD811/D. *NCV devices: T low = 4 C, T high = 125 C. Guaranteed by design. NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AECQ1 Qualified and PPAP Capable. 9
, NCV317L PACKAGE DIMENSIONS TO92 (TO226) Z SUFFIX CASE 2911 ISSUE AM R A N B STRAIGHT LEAD BULK PACK NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. P L SEATING INCHES MILLIMETERS PLANE K DIM MIN MAX MIN MAX A.175.25 4.45 5.2 B.17.21 4.32 5.33 C.125.165 3.18 4.19 D.16.21.47.533 X X D G.45.55 1.15 1.39 H.95.15 2.42 2.66 G J.15.2.39.5 H J K.5 --- 12.7 --- V C L.25 --- 6.35 --- N.8.15 2.4 2.66 P ---.1 --- 2.54 SECTION XX R.115 --- 2.93 --- 1 N V.135 --- 3.43 --- R A B BENT LEAD TAPE & REEL AMMO PACK NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. P T MILLIMETERS SEATING PLANE K DIM MIN MAX A 4.45 5.2 B 4.32 5.33 C 3.18 4.19 D.4.54 G X X D G 2.4 2.8 J.39.5 K 12.7 --- J N 2.4 2.66 V P 1.5 4. C.93 --- SECTION XX V 3.43 --- 1 N 1
, NCV317L PACKAGE DIMENSIONS X B Y Z H 8 1 G A D 5 4 S C.25 (.1) M Z Y S X S.25 (.1) M SEATING PLANE Y.1 (.4) SOIC8 NB D SUFFIX CASE 7517 ISSUE AK M N X 45 M K SOLDERING FOOTPRINT* J NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION.15 (.6) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE.127 (.5) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. 7511 THRU 7516 ARE OBSOLETE. NEW STANDARD IS 7517. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 4.8 5..189.197 B 3.8 4..15.157 C 1.35 1.75.53.69 D.33.51.13.2 G 1.27 BSC.5 BSC H.1.25.4.1 J.19.25.7.1 K.4 1.27.16.5 M 8 8 N.25.5.1.2 S 5.8 6.2.228.244 1.52.6 7..275 4..155.6 1.27.24.5 mm SCALE 6:1 inches *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and 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 /site/pdf/patentmarking.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. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 811 USA Phone: 336752175 or 8344386 Toll Free USA/Canada Fax: 336752176 or 83443867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 82829855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 79 291 Japan Customer Focus Center Phone: 813581715 11 ON Semiconductor Website: Order Literature: http:///orderlit For additional information, please contact your local Sales Representative /D