Absolute Maximum Ratings (Note 1) ntact the National Semiconductor sales Office/Distributors for availability and specifications. Input Voltage Power Dissipation( Note 2) Internally Limited Operating Junction Temperature I Storage Temperature Rang 65°cto+150°c Lead Temperature(Soldering, 10 sec. Electrical Characteristics conditions unless otherwise noted: louT =500 mA, CIN=2.2 HF, CouT=1uF Part Number LM7905C Units Input Voltage(unless otherwise specified) Symbol -5.2 5mA≤louT≤1A -5.25 Ps 15W 20≤VN≤-7) △vo Line Regulation TJ=25°C,(Note3) 50 (-25≤VN≤-7 Load Regulation TJ=25°c.(Note3) 250mA≤louT≤750mA Quiescent Current mA ge (-25≤VN≤-7 With Load,5mA≤ ≤1A 0.5 5°c,10Hz≤f≤100H f= 120 Hz (-18≤VN≤-8) copout Voltage T,=25"C,louT=1A lOMAx Peak Output CurrentTJ=25C mv/c Coefficient of 0c≤TJ≤100c Output Voltage Typical Applications (Continued) Variable Output 2HF R2 LM79XXCT ection. Do not increase beyond 50 uF. Select R2 as fowk LM7912CT 7500 LM7915CT 2Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Input Voltage (Vo e b5V) b25V (Vo e b12V and b15V) b35V Input-Output Differential (Vo e b5V) 25V (Vo e b12V and b15V) 30V Power Dissipation (Note 2) Internally Limited Operating Junction Temperature Range 0§C to a125§C Storage Temperature Range b65§C to a150§C Lead Temperature (Soldering, 10 sec.) 230§C Electrical Characteristics Conditions unless otherwise noted: IOUT e 500 mA, CIN e 2.2 mF, COUT e 1 mF, 0§C s TJ s a125§C, Power Dissipation s 1.5W. Part Number LM7905C Units Output Voltage b5V Input Voltage (unless otherwise specified) b10V Symbol Parameter Conditions Min Typ Max VO Output Voltage TJ e 25§C b4.8 b5.0 b5.2 V 5 mA s IOUT s 1A, b4.75 b5.25 V P s 15W (b20 s VIN s b7) V DVO Line Regulation TJ e 25§C, (Note 3) 8 50 mV (b25 s VIN s b7) V 2 15 mV (b12 s VIN s b8) V DVO Load Regulation TJ e 25§C, (Note 3) 5 mA s IOUT s 1.5A 15 100 mV 250 mA s IOUT s 750 mA 5 50 mV IQ Quiescent Current TJ e 25§C 1 2 mA DIQ Quiescent Current With Line 0.5 mA Change (b25 s VIN s b7) V With Load, 5 mA s IOUT s 1A 0.5 mA Vn Output Noise Voltage TA e 25§C, 10 Hz s f s 100 Hz 125 mV Ripple Rejection f e 120 Hz 54 66 dB (b18 s VIN s b8) V Dropout Voltage TJ e 25§C, IOUT e 1A 1.1 V IOMAX Peak Output Current TJ e 25§C 2.2 A Average Temperature IOUT e 5 mA, 0.4 mV/§C Coefficient of 0 C s TJ s 100§C Output Voltage Typical Applications (Continued) Variable Output TL/H/7340 –2 *Improves transient response and ripple rejection. Do not increase beyond 50 mF. VOUT e VSET # R1 a R2 R2 J Select R2 as follows: LM7905CT 300X LM7912CT 750X LM7915CT 1k 2