79LXX Description This series of fixed-voltage monolithic integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators. Each of these regulators can deliver up to 100 mA of output current. The internal limiting and termal shutdown features of these regulators make them essentially immune to overload. When used as a replacement for a Zener diode-resistor combination, an effective improvement in output impedance can be obtained together w ith lower-bias current. Features *3-Terminal Regulators *Output Current Up to 100 mA *No External Components *Internal Thermal Overload Protection Package TO-92 (top view) *Internal Short-Circuit Limiting Package Internal Block Digram OC I GND R1 R2 OUTPUT Voltage reference Protection circuitry RSC INPUT Contek BEIJING ESTEK ELECTRONICS CO.,LTD 1 79LXX Absolute Maximum Ratings over operating temperature range (unless otherwise noted) Parameter Input voltage Operating free-air, case, or virtual junction temperature range Storage temperature range Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds 79L05A thru 79L08A -30 0 to 150 79L12A THRU 79L18A -35 0 to 150 79L24A Units -40 0 to 150 V C -65 to 150 260 -65 to 150 260 -65 to 150 260 Recommended Operating Conditions Parameter Min -7 -8 -10.5 -14.5 -17.5 -20.5 -27 79L05A 79L06A 79L08A 79L12A 79L15A 79L18A 79L24A Input voltage VI Output current, IO Operating virtual junction temperature, T J Max -20 -20 -23 -27 -30 -33 -38 100 125 0 Units V mA C Device Selection Guide Output Voltage -5 V -6 V -8 V -12 V -15 V -18 V -24 V Device 79L05A 79L06A 79L08A 79L12A 79L15A 79L18A 79L24A Electrical Characteristics 79L05A Electrical characteristics at specified virtual junction temperature, V I= -10V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** Input regulation Ripple rejection 25 C IO= 1mA to 40 mA, VI= -7V to -20V IO= 1mA to 70mA, VI= -7V to -20V VI= -8V to -20V 0 C to 125 C Min -4.8 -4.75 -4.75 79L05A Typ -5 15 12 25 C VI= -8V to -18V, f= 120Hz 25 C Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 25 C 20 10 Output noise voltage Dropout voltage f= 10Hz to 100 KHz 25 C 25 C 40 1.7 Bias current Bias current change VI= -8V to -20V IO= 1mA to 40mA 41 Units Max -5.2 -5.25 -5.25 150 100 49 60 30 V mV dB mV V V 25 C 6 125 C 5.5 0 C to 125 C 1.5 0.1 mA BEIJING ESTEK ELECTRONICS CO.,LTD 2 79LXX Electrical Characteristics 79L06A Electrical characteristics at specified virtual junction temperature, V I= -11V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** IO= 1mA to 40 mA, VI= -8V to -20V IO= 1mA to 70mA, Input regulation VI= -8V to -20V VI= -9V to -20V 25 C Min -5.75 0 C to 125 C -5.7 79L06A Typ -6 -6.3 25 C 20 15 Ripple rejection VI= -9V to -19V, f= 120Hz 25 C Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 25 C 21 11 Output noise voltage Dropout voltage Bias current f= 10Hz to 100 KHz 25 C 25 C 25 C 44 1.7 Bias current change VI= -9V to -20V IO= 1mA to 40mA Units Max -6.25 40 175 125 48 80 40 V mV dB mV V V 6 125 C 5.5 0 C to 125 C 1.5 0.1 mA * Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33F capacitor across the input and a 0.1 F capacitor across the output. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. Electrical Characteristics 79L08A Electrical characteristics at specified virtual junction temperature, VI= -14V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** IO= 1mA to 40 mA, VI= -10.5V to 23V 25 C Min -7.7 0 C to 125 C -7.6 Input regulation IO= 1mA to 70mA, VI= -10,5V to -23V VI= -11V to -23V 25 C Ripple rejection VI= -11V to -21V, f= 120Hz 25 C Output regulation Output noise voltage Dropout voltage 42 36 37 200 150 46 25 C 30 15 f= 10Hz to 100 KHz 25 C 25 C 54 1.7 VI= -11V to -23V IO= 1mA to 40mA Units Max -8.3 -8.4 IO= 1mA to 100mA IO= 1mA to 40mA Bias current Bias current change 79L08A Typ -8 100 50 V mV dB mV V V 25 C 6 125 C 5.5 0 C to 125 C 1.5 0.1 mA BEIJING ESTEK ELECTRONICS CO.,LTD 3 79LXX Electrical Characteristics 79L12A Electrical characteristics at specified virtual junction temperature, V I= -19V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** 25 C IO= 1mA to 40mA, VI= -14.5V to 27V IO= 1mA to 70mA Input regulation VI= -14.5V to -27V VI= -16V to -27V 0 C to 125 C 79L12A Typ -12 -11.4 25 C Ripple rejection VI= -15V to -25V, f= 120Hz Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 25 C Output noise voltage f= 10Hz to 100 KHz V Dropout voltage V Bias current 6.5 25 C Bias current change Min -11.5 -11.4 0 C to 125 C 37 50 -12.6 250 40 200 42 24 15 25 C 25 C 125 C 0 C to 125 C VI= -16V to -27V IO= 1mA to 40mA Units Max -12.5 -12.6 100 50 V mV dB mV 80 1.7 6 1.5 0.1 mA * Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33F capacitor across the input and a 0.1 F capacitor across the output. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. Electrical Characteristics 79L15A Electrical characteristics at specified virtual junction temperature, V I= -23V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** 25 C Min -14.4 -14.25 -14.25 79L15A Typ -15 IO= 1mA to 40mA, VI= -17.5V to -30V IO= 1mA to 70mA VI= -17.5V to -30V VI= -20V to -30V 0 C to 125 C Ripple rejection VI= -18.5V to -28.5V, f= 120Hz 0 C to 125 C Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 25 C 25 15 Output noise voltage Dropout voltage f= 10Hz to 100 KHz 25 C 25 C 90 1.7 Input regulation Bias current Bias current change VI= -20V to -30V IO= 1mA to 40mA 65 50 25 C 34 Units Max -15.6 -15.75 -15.75 300 250 39 150 75 V mV dB mV V V 25 C 6.5 125 C 6 0 C to 125 C 1.5 0.1 mA BEIJING ESTEK ELECTRONICS CO.,LTD 4 79LXX Electrical Characteristics 79L18A Electrical characteristics at specified virtual junction temperature, V I= -26V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** 25 C Min -17.3 -17.1 79L18A Typ -18 IO= 1mA to 40mA, VI= -20.5V to -33V IO= 1mA to 70mA VI= -20.5V to -33V VI= -21V to -33V 0 C to 125 C Ripple rejection VI= -23V to -33V, f= 120Hz 0 C to 125 C Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 25 C 27 19 Output noise voltage Dropout voltage f= 10Hz to 100 KHz 25 C 25 C 150 1.7 Input regulation -17.1 Bias current change VI= -21V to -33V IO= 1mA to 40mA V -18.9 25 C Bias current Units Max -18.7 -18.9 33 70 325 60 275 48 170 85 mV dB mV V V 25 C 6.5 125 C 6 0 C to 125 C 1.5 0.1 mA * Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33F capacitor across the input and a 0.1 F capacitor across the output. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. Electrical Characteristics 79L24A Electrical characteristics at specified virtual junction temperature, V I= -33V,IO = 40mA (unless otherwise noted) Parameter Test conditions* Output voltage** 25 C IO= 1mA to 40mA, VI= -27V to -38V IO= 1mA to 70mA VI= -27V to -38V VI= -28V to -38V 0 C to 125 C Ripple rejection VI= -29V to -35V, f= 120Hz Output regulation IO= 1mA to 100mA IO= 1mA to 40mA 0 C to 125 C 25 C Output noise voltage Dropout voltage f= 10Hz to 100 KHz Input regulation 25 C 25 C 25 C Bias current Bias current change Min -23 -22.8 -22.8 VI= -28V to -38V IO= 1mA to 40mA 31 79L24A Typ -24 Units 90 75 Max -25 -25.2 -25.2 350 300 47 40 25 200 100 200 1.7 V mV dB mV V V 25 C 6.5 125 C 6 0 C to 125 C 1.5 0.1 mA * Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separatel y. All characteristics are measured with a 0.33F capacitor across the input an d a 0.1 F capacitor across the output. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. BEIJING ESTEK ELECTRONICS CO.,LTD 5 79LXX Ordering Information O RDERING NU MB ER 79LXX Address : P ACK AGE M AR KING TO - 92 ET79LXX 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Fax : 010-58895793 Http://www.estek.com.cn Email:sales@estek.com.cn REV No:01-060806 BEIJING ESTEK ELECTRONICS CO.,LTD 7