78L24

78L24 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 Provided Pb-Free packages from the end of 2004 Positive-Voltage Regulators O C I TO-92 78L24ACZ 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 OUTPUT GND INPUT SOT-89 78L24CPK electrical characteristics at specified virtual junction temperature, VI = 32V, I o = 40mA (unless otherwise noted) PARAMETER TEST CONDITIONS TJ‡ MIN V 7Vt I 1 mA t 40 mA A to A 25°C Full range Full range 25 25 C 25°C 25°C 30 23 22.8 22.8 78L24 TYP 24 UNIT MAX 25 25.2 25.2 480 400 dB 240 120 mV mV µV V 6.5 6 1.5 0.1 mA mA mA mA V Output voltage Io =1mA to 40MA, VI =26.5 to 39V IO = 1 mA to 70 mA VI = 26.5V to 39V VI = 29V to 39V VI = 27.5V to 37.5V, f = 120 Hz IO = 1 mA to 100 mA IO = 1 mA to 40 mA f = 10 Hz to 100 kHz 24 24 95 78 33 41 28 97 1.7 4.8 Input voltage regulation Ripple rejection Output voltage regulation Output noise voltage Dropout voltage mV mV 25°C 25°C 25°C 25°C 125°C Bias current current Bias c rrent Bias current change VI = 28V to 39V IO = 1 mA to 40 mA Full range Full range ll ‡ 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-µF capacitor across the input and a 0.1-µF capacitor across the output. Full range for the 78L05 is T J = 0°C to 70°C 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 78L24 absolute maximum ratings over operating temperature range (unless othewise noted) 78L24 Input voltage, VI Input 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 40 150 260 –65 to 150 recommended operating conditions 78L24 Input voltage Input voltage, VI MIN MAX UNIT 26.5 39 100 V mA Output current, IO Operating virtual j g junction temperature, TJ 0 70 °C Pad Location 78L24 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