ON Semiconductor MC79L00, MC79L00A Series 100 mA Negative Voltage Regulators The MC79L00, A Series negative voltage regulators are inexpensive, easy-to-use devices suitable for numerous applications requiring up to100 mA. Like the higher powered MC7900 Series negative regulators, this series features thermal shutdown and current limiting, making them remarkably rugged. In most applications, no external components are required for operation. The MC79L00 devices are useful for on-card regulation or any other application where a regulated negative voltage at a modest current level is needed. These regulators offer substantial advantage over the common resistor/zener diode approach. * No External Components Required * Internal Short Circuit Current Limiting * Internal Thermal Overload Protection * Low Cost * Complementary Positive Regulators Offered (MC78L00 Series) * Available in Either 5% (AC) or 10% (C) Selections THREE-TERMINAL LOW CURRENT NEGATIVE FIXED VOLTAGE REGULATORS SEMICONDUCTOR TECHNICAL DATA P SUFFIX PLASTIC PACKAGE CASE 29 Pin 1. Ground 2. Input 3. Output 1 Representative Schematic Diagram R 5 R18 R1 Gnd R8 R6 3 Vout Vin Vin NC 5. 6. 7. 8. GND Vin Vin NC *SOP-8 is an internally modified SO-8 package. Pins 2, 3, 6, and 7 are electrically common to the die attach flag. This internal lead frame modification decreases package thermal resistance and increases power dissipation capability when appropriately mounted on a printed circuit board. SOP-8 conforms to all external dimensions of the standard SO-8 package. Q10 Q5 R9 R17 Q4 R7 Q8 Q14 Q9 Q1 2 D SUFFIX PLASTIC PACKAGE CASE 751 (SOP-8)* 8 Pin 1. 2. 3. 4. 1 R16 R4 Z1 R3 Output Q12 R2 C Q6 R10 Q13 Q2 R11 Q7 Q11 R14 Device No. 5% Nominal Voltage MC79L05C MC79L12C MC79L15C MC79L18C MC79L24C MC79L05AC MC79L12AC MC79L15AC MC79L18AC MC79L24AC -5.0 -12 -15 -18 -24 ORDERING INFORMATION Device R15 Operating Temperature Range Package TJ = 0 to +125C Plastic Power MC79LXXACD* Input *Automotive temperature range selections are available with special test conditions and additional tests in 5, 12 and 15 V devices. Contact your local ON Semiconductor sales office for information. Device No. 10% MC79LXXACP SOP-8 MC79LXXCP Plastic Power MC79LXXABD* MC79LXXABP* SOP-8 TJ = -40 to +125C Plastic Power XX indicates nominal voltage Semiconductor Components Industries, LLC, 2002 January, 2002 - Rev. 4 1 Publication Order Number: MC79L00/D MC79L00, MC79L00A Series MAXIMUM RATINGS (TA = +25C, unless otherwise noted.) Rating Symbol Value Unit VI -30 -35 -40 Vdc Storage Temperature Range Tstg -65 to +150 C Junction Temperature TJ +150 C Input Voltage (-5 V) Input Voltage (-12, -15, -18 V) Input Voltage (-24 V) ELECTRICAL CHARACTERISTICS (VI = -10 V, IO = 40 mA, CI = 0.33 F, CO = 0.1 F, -40C < TJ +125C (for MC79LXXAB), 0C < TJ < +125C (for MC79LXXAC)). MC79L05C, AB Characteristics Output Voltage (TJ = +25C) MC79L05AC, AB Symbol Min Typ Max Min Typ Max Unit VO -4.6 -5.0 -5.4 -4.8 -5.0 -5.2 Vdc - - - - 200 150 - - - - 150 100 - - - - 60 30 - - - - 60 30 -4.5 -4.5 - - -5.5 -5.5 -4.75 -4.75 - - -5.25 -5.25 - - - - 6.0 5.5 - - - - 6.0 5.5 - - - - 1.5 0.2 - - - - 1.5 0.1 Input Regulation (TJ = +25C) -7.0 Vdc VI -20 Vdc -8.0 Vdc VI -20 Vdc Regline Load Regulation TJ = +25C, 1.0 mA IO 100 mA 1.0 mA IO 40 mA Regload mV mV Output Voltage -7.0 Vdc VI -20 Vdc, 1.0 mA IO 40 mA VI = -10 Vdc, 1.0 mA IO 70 mA VO Input Bias Current (TJ = +25C) (TJ = +125C) IIB Input Bias Current Change -8.0 Vdc VI -20 Vdc 1.0 mA IO 40 mA IIB Output Noise Voltage (TA = +25C, 10 Hz f 100 kHz) Vn - 40 - - 40 - V Ripple Rejection (-8.0 VI -18 Vdc, f = 120 Hz, TJ = +25C) RR 40 49 - 41 49 - dB |VI-VO| - 1.7 - - 1.7 - Vdc Dropout Voltage (IO = 40 mA, TJ = +25C) Vdc mA mA ELECTRICAL CHARACTERISTICS (VI = -19 V, IO = 40 mA, CI = 0.33 F, CO = 0.1 F, -40C < TJ +125C (for MC79LXXAC), 0C < TJ < +125C (for MC79LXXAB)). MC79L12C, AB Characteristics MC79L12AC, AB Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25C) VO -11.1 -12 -12.9 -11.5 -12 -12.5 Vdc Input Regulation (TJ = +25C) -14.5 Vdc VI -27 Vdc -16 Vdc VI -27 Vdc Regline Load Regulation TJ = +25C, 1.0 mA IO 100 mA 1.0 mA IO 40 mA Regload mV - - - - 250 200 - - - - 250 200 - - - - 100 50 - - - - 100 50 -10.8 -10.8 - - -13.2 -13.2 -11.4 -11.4 - - -12.6 -12.6 - - - - 6.5 6.0 - - - - 6.5 6.0 - - - - 1.5 0.2 - - - - 1.5 0.2 mV Output Voltage -14.5 Vdc VI -27 Vdc, 1.0 mA IO 40 mA VI = -19 Vdc, 1.0 mA IO 70 mA VO Input Bias Current (TJ = +25C) (TJ = +125C) IIB Input Bias Current Change -16 Vdc VI -27 Vdc 1.0 mA IO 40 mA IIB Output Noise Voltage (TA = +25C, 10 Hz f 100 kHz) Vn - 80 - - 80 - V Ripple Rejection (-15 VI -25 Vdc, f = 120 Hz, TJ = +25C) RR 36 42 - 37 42 - dB |VI-VO| - 1.7 - - 1.7 - Vdc Dropout Voltage (IO = 40 mA, TJ = +25C) Vdc mA mA http://onsemi.com 2 MC79L00, MC79L00A Series ELECTRICAL CHARACTERISTICS (VI = -23 V, IO = 40 mA, CI = 0.33 F, CO = 0.1 F, -40C < TJ +125C (for MC79LXXAB), 0C < TJ < +125C (for MC79LXXAC)). MC79L15C Characteristics MC79L15AC, AB Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25C) VO -13.8 -15 -16.2 -14.4 -15 -15.6 Vdc Input Regulation (TJ = +25C) -17.5 Vdc VI -30 Vdc -20 Vdc VI -30 Vdc Regline Load Regulation TJ = +25C, 1.0 mA IO 100 mA 1.0 mA IO 40 mA Regload mV - - - - 300 250 - - - - 300 250 - - - - 150 75 - - - - 150 75 -13.5 -13.5 - - -16.5 -16.5 -14.25 -14.25 - - -15.75 -15.75 - - - - 6.5 6.0 - - - - 6.5 6.0 - - - - 1.5 0.2 - - - - 1.5 0.1 mV Output Voltage -17.5 Vdc VI -Vdc, 1.0 mA IO 40 mA VI = -23 Vdc, 1.0 mA IO 70 mA VO Input Bias Current (TJ = +25C) (TJ = +125C) IIB Input Bias Current Change -20 Vdc VI -30 Vdc 1.0 mA IO 40 mA IIB Output Noise Voltage (TA = +25C, 10 Hz f 100 kHz) VN - 90 - - 90 - V Ripple Rejection (-18.5 VI -28.5 Vdc, f = 120 Hz) RR 33 39 - 34 39 - dB |VI-VO| - 1.7 - - 1.7 - Vdc Dropout Voltage IO = 40 mA, TJ = +25C Vdc mA mA ELECTRICAL CHARACTERISTICS (VI = -27 V, IO = 40 mA, CI = 0.33 F, CO = 0.1 F, 0C < TJ > +125C, unless otherwise noted). MC79L18C Characteristics MC79L18AC Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25C) VO -16.6 -18 -19.4 -17.3 -18 -18.7 Vdc Input Regulation (TJ = +25C) -20.7 Vdc VI -33 Vdc -21.4 Vdc VI -33 Vdc -22 Vdc VI -33 Vdc -21 Vdc VI -33 Vdc Regline Load Regulation TJ = +25C, 1.0 mA IO 100 mA 1.0 mA IO 40 mA Regload mV - - - - - - - - - 325 275 - - - - - - - - - 325 - - 275 - - - - 170 85 - - - - 170 85 - - - - -19.8 -19.8 -17.1 - -17.1 - - - -18.9 - -18.9 - - - - 6.5 6.0 - - - - 6.5 6.0 - - - - - - - 1.5 0.2 - - - - - - 1.5 - 0.1 mV Output Voltage -20.7 Vdc VI -33 Vdc, 1.0 mA IO 40 mA -21.4 Vdc VI -33 Vdc, 1.0 mA IO 40 mA VI = -27 Vdc, 1.0 mA IO 70 mA VO Input Bias Current (TJ = +25C) (TJ = +125C) IIB Input Bias Current Change -21 Vdc VI -33 Vdc -27 Vdc VI -33 Vdc 1.0 mA IO 40 mA IIB Output Noise Voltage (TA = +25C, 10 Hz f 100 kHz) Vn - 150 - - 150 - V Ripple Rejection (-23 VI -33 Vdc, f = 120 Hz, TJ = +25C) RR 32 46 - 33 48 - dB |VI-VO| - 1.7 - - 1.7 - Vdc Dropout Voltage IO = 40 mA, TJ = +25C Vdc - -16.2 -16.2 mA mA http://onsemi.com 3 MC79L00, MC79L00A Series ELECTRICAL CHARACTERISTICS (VI = -33 V, IO = 40 mA, CI = 0.33 F, CO = 0.1 F, 0C < TJ < +125C, unless otherwise noted). MC79L24C Characteristics MC79L24AC Symbol Min Typ Max Min Typ Max Unit Output Voltage (TJ = +25C) VO -22.1 -24 -25.9 -23 -24 -25 Vdc Input Regulation (TJ = +25C) -27 Vdc VI -38 Vdc -27.5 Vdc VI -38 Vdc -28 Vdc VI -38 Vdc Regline Load Regulation TJ = +25C, 1.0 mA IO 100 mA 1.0 mA IO 40 mA Regload mV - - - - - - - 350 300 - - - - - - 350 - 300 - - - - 200 100 - - - - 200 100 - -21.4 -21.4 - - - - -26.4 -26.4 -22.8 - -22.8 - - - -25.2 - -25.2 - - - - 6.5 6.0 - - - - 6.5 6.0 - - - - 1.5 0.2 - - - - 1.5 0.1 mV Output Voltage -27 Vdc VI -38 V, 1.0 mA IO 40 mA -28 Vdc VI -38 Vdc, 1.0 mA IO 40 mA VI = -33 Vdc, 1.0 mA IO 70 mA VO Input Bias Current (TJ = +25C) (TJ = +125C) IIB Input Bias Current Change -28 Vdc VI -38 Vdc 1.0 mA IO 40 mA IIB Output Noise Voltage (TA = +25C, 10 Hz f 100 kHz) Vn - 200 - - 200 - V Ripple Rejection (-29 VI -35 Vdc, f = 120 Hz, TJ = +25C) RR 30 43 - 31 47 - dB |VI-VO| - 1.7 - - 1.7 - Vdc Dropout Voltage IO = 40 mA, TJ = +25C Vdc mA mA APPLICATIONS INFORMATION Design Considerations high-frequency characteristics to insure stable operation under all load conditions. A 0.33 F or larger tantalum, mylar, or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the shortest possible leads directly across the regulator's input terminals. Normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. Bypassing the output is also recommended. The MC79L00, A Series of fixed voltage regulators are designed with Thermal Overload Protections that shuts down the circuit when subjected to an excessive power overload condition, Internal Short Circuit Protection that limits the maximum current the circuit will pass. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with a capacitor if the regulator is connected to the power supply filter with long wire length, or if the output load capacitance is large. An input bypass capacitor should be selected to provide good +Vin MC78LXX Input +VO CI* 0.33F 0.1F 0.33F MC79LXX Output CO** 0.1F 0.1F -Vin MC79LXX A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the ripple voltage. -VO 0.33F * CI is required if regulator is located an appreciable * distance from the power supply filter ** CO improves stability and transient response. Figure 1. Positive and Negative Regulator Figure 2. Standard Application http://onsemi.com 4 MC79L00, MC79L00A Series TYPICAL CHARACTERISTICS (TA = +25C, unless otherwise noted.) V I -V O , INPUT/OUTPUT DIFFERENTIAL VOLTAGE (V) MC79L05C VO = -5.0 V TJ = 25C 6.0 IO = 1.0 mA 4.0 2.0 IO = 100 mA IO = 40 mA 0 0 -2.0 -4.0 -6.0 Vin, INPUT VOLTAGE (V) -0.8 -10 -2.5 -2.0 IO = 70 mA IO = 40 mA -1.5 IO = 1.0 mA -1.0 Dropout of Regulation is defined when VO = 2% of VO -0.5 0 0 25 Figure 3. Dropout Characteristics I IB , INPUT BIAS CURRENT (mA) 5.0 4.0 3.8 3.6 3.4 MC79L05C Vin = -10 V VO = -5.0 V IO = 40 mA 3.2 3.0 0 0 25 50 75 100 TA, AMBIENT TEMPERATURE (C) 4.0 3.0 2.0 1.0 0 125 MC79L05C VO = -5.0 V IO = 40 mA 0 -5.0 Figure 5. Input Bias Current versus Ambient Temperature -10 -15 -20 -25 -30 Vin, INPUT VOLTAGE (V) 170 RJA , THERMAL RESISTANCE JUNCTION-TO-AIR (C/W) 1,000 100 RJA = 200C/W PD(max) to 25C = 625 mW 50 75 100 125 TA, AMBIENT TEMPERATURE (C) 2.8 PD(max) for TA = +50C 130 No Heatsink 25 -40 3.2 150 P D , POWER DISSIPATION (mW) -35 Figure 6. Input Bias Current versus Input Voltage 10,000 10 125 Figure 4. Dropout Voltage versus Junction Temperature 4.2 I IB , INPUT BIAS CURRENT (mA) 50 75 100 TJ, JUNCTION TEMPERATURE (C) 110 III III III III III III Graph represents symmetrical layout 90 L 70 2.0 oz. Copper L 50 30 150 2.4 3.0 mm RJA 0 10 20 30 L, LENGTH OF COPPER (mm) 40 2.0 1.6 1.2 0.8 0.4 50 Figure 8. SOP-8 Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length Figure 7. Maximum Average Power Dissipation versus Ambient Temperature (TO-92) http://onsemi.com 5 PD, MAXIMUM POWER DISSIPATION (W) VO, OUTPUT VOLTAGE (V) 8.0 MC79L00, MC79L00A Series PACKAGE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 29-11 ISSUE AL A 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. B R P L SEATING PLANE K DIM A B C D G H J K L N P R V D X X G J H V C SECTION X-X 1 N N http://onsemi.com 6 INCHES MIN MAX 0.175 0.205 0.170 0.210 0.125 0.165 0.016 0.021 0.045 0.055 0.095 0.105 0.015 0.020 0.500 --0.250 --0.080 0.105 --0.100 0.115 --0.135 --- MILLIMETERS MIN MAX 4.45 5.20 4.32 5.33 3.18 4.19 0.407 0.533 1.15 1.39 2.42 2.66 0.39 0.50 12.70 --6.35 --2.04 2.66 --2.54 2.93 --3.43 --- MC79L00, MC79L00A Series PACKAGE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751-07 ISSUE W -X- 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 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. A 8 5 0.25 (0.010) S B 1 M Y M 4 K -Y- G C N X 45 SEATING PLANE -Z- 0.10 (0.004) H M D 0.25 (0.010) M Z Y S X S http://onsemi.com 7 J DIM A B C D G H J K M N S MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0 8 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0 8 0.010 0.020 0.228 0.244 MC79L00, MC79L00A Series ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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. 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Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. N. American Technical Support: 800-282-9855 Toll Free USA/Canada http://onsemi.com 8 MC79L00/D