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| 78L08 D D D D D D 3-Terminal Regulators Output Current up to 100 mA No External Components Internal Thermal-Overload Protection Internal Short-Circuit Current Limiting Direct Replacements for Fairchild A78L0 8 Series Positive-Voltage Regulators O C I TO-92 78L08ACZ description This series of fixed-voltage 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. One of these regulators can deliver up to 100 mA of output current. The internal limiting and thermal-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 with lower bias current. INPUT COMMON OUTPUT OUTP UT GND INPUT SOT-89 78L08CPK electrical characteristics at specified virtual junction temperature, VI = 14V, Io= 40 mA (unless otherwise noted) PARAMETER TEST CONDITIONS TJ MIN 25C Output voltage V 7 V t 20 V to I 1 mA to 40 mA At A Io =1mA to 40mA, Vi =10.5 to 23V IO = 1 mA to 70 mA VI = 10.5V to 23V VI = 11V to 23V VI = 13V to 23V f = 120 Hz IO = 1 mA to 100 mA IO = 1 mA to 40 mA f = 10 Hz to 100 kHz Full range Full range 25C 25 C 25C 25C 25 C 25C 25C 25C 125C VI = 11V to 23V IO = 1 mA to 40 mA 78L08 TYP MAX UNIT 7.7 8 8 7.6 7.6 8.3 8.4 V 8 42 Input voltage regulation Ripple rejection Output voltage regulation Output noise voltage Dropout voltage 8.4 175 125 80 40 36 37 46 mV mV dB mV mV V V 18 10 54 1.7 Bias current current Bias c rrent Bias current change 4 6 5.5 1.5 0.1 mA mA mA mA Full range F ll Full Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-F capacitor across the input and a 0.1-F capacitor across the output. Full range for the 78L05 is T J = 0C to 70C Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: wsccltd@hkstar.com 2-1 WS 78L08 absolute maximum ratings over operating temperature range (unless othewise noted) 78L08 Input voltage VI voltage, Virtual junction temperature range, TJ Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds Storage temperature range, Tstg PARAMETER UNIT V C C C 30 150 260 -65 to 150 recommended operating conditions 78L08 voltage, Input voltage VI MIN MAX UNIT 10.5 23 100 V mA Output current, IO Operating virtual j g junction temperature, TJ 0 70 C Pad Location 78L 08 90um 3 85um 90um 2 90um 9 9 95um 1 100um Chip size 1.0 x 1.2 mm Pad N 1 2 3 Pad Name Ground Input Output X (um) Y (um) 95 820 535 100 1010 1015 2-2 |
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