Negative Voltage Regulators 100 mA MC79L00A Series The MC79L00A Series negative voltage regulators are inexpensive, easytouse devices suitable for numerous applications requiring up to 100 mA. Like the higher powered MC7900 Series negative regulators, this series features thermal shutdown and current www.onsemi.com limiting, making them remarkably rugged. In most applications, no external components are required for operation. THREETERMINAL LOW The MC79L00A devices are useful for oncard regulation or any CURRENT NEGATIVE FIXED other application where a regulated negative voltage at a modest current level is needed. These regulators offer substantial advantage VOLTAGE REGULATORS over the common resistor/Zener diode approach. MARKING Features DIAGRAMS No External Components Required Pin 1. V Internal Short Circuit Current Limiting out 8 2. V in Internal Thermal Overload Protection 8 3. V in 9Lxxx 4. NC ALYWy Low Cost 1 5. GND SOIC8 Complementary Positive Regulators Offered (MC78L00 Series) 6. V D SUFFIX in 1 Pb Free Packages are Available 7. V CASE 751 in 8. NC TO92 GND P SUFFIX R8 CASE 2910 R6 R Q10 1 1 5 2 2 Q5 R9 3 3 R18 R17 Q4 R1 STRAIGHT LEAD BENT LEAD R7 Pin 1. Ground Q8 Q14 2. Input MC79L Q9 R16 3. Output xxxxx Q1 ALYW R4 Output Q12 R2 Q13 Z1 C Q2 R3 Q7 Q11 Q6 xxx = Specific Device Code R10 R11 R14 R15 A = Assembly Location L = Wafer Lot Input Y = Year * Automotive temperature range selections are available with special test conditions W = Work Week and additional tests in 5, 12 and 15 V devices. Contact your local ON Semiconductor y = B or C sales office for information. Figure 1. Representative Schematic Diagram ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 7 of this data sheet. Semiconductor Components Industries, LLC, 1994 1 Publication Order Number: April, 2021 Rev. 11 MC79L00/DMC79L00A Series MAXIMUM RATINGS (T = +25C, unless otherwise noted.) A Rating Symbol Value Unit Input Voltage (5 V) V 30 Vdc I (12, 15, 18 V) 35 (24 V) 40 Power Dissipation Case 29 (TO92 Type) T = 25C PD Internally Limited W A Thermal Resistance, JunctiontoAmbient R 160 C/W JA Thermal Resistance, JunctiontoCase R 83 C/W JC Case 751 (SOIC8 Type) (Note 1) T = 25C PD Internally Limited W A Thermal Resistance, JunctiontoAmbient R 180 C/W JA Thermal Resistance, JunctiontoCase R 45 C/W JC Storage Temperature Range T 65 to +150 C stg Junction Temperature T +150 C J 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 9 for Thermal Resistance variation versus pad size. *This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL STD 883, Method 3015 Machine Model Method 200 V. ELECTRICAL CHARACTERISTICS (V = 10 V, I = 40 mA, C = 0.33 F, C = 0.1 F, 40C < T +125C (for MC79LXXAB), I O I O J 0C < T < +125C (for MC79LXXAC)). J MC79L05AC, AB Characteristics Symbol Min Typ Max Unit Output Voltage (T = +25C) V 4.8 5.0 5.2 Vdc J O Input Regulation (T = +25C) Reg mV J line 7.0 Vdc V 20 Vdc 150 I 8.0 Vdc V 20 Vdc 100 I Load Regulation Reg mV load T = +25C, 1.0 mA I 100 mA 60 J O 1.0 mA I 40 mA 30 O Output Voltage V Vdc O 7.0 Vdc V 20 Vdc, 1.0 mA I 40 mA 4.75 5.25 I O V = 10 Vdc, 1.0 mA I 70 mA 4.75 5.25 I O Input Bias Current I mA IB (T = +25C) 6.0 J (T = +125C) 5.5 J Input Bias Current Change I mA IB 8.0 Vdc V 20 Vdc 1.5 I 1.0 mA I 40 mA 0.1 O Output Noise Voltage (T = +25C, 10 Hz f 100 kHz) V 40 V A n Ripple Rejection (8.0 V 18 Vdc, f = 120 Hz, T = +25C) RR 41 49 dB I J Dropout Voltage (I = 40 mA, T = +25C) V V 1.7 Vdc O J I O Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. www.onsemi.com 2