MC79L00A Series 100 mA Negative Voltage Regulators 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 MC79L00A 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 Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 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