LM7808J

TIGER ELECTRONIC CO.,LTD 3-Terminal 1A Positive Voltage Regulator GENERAL DESCRIPTION The LM7808 series of three terminal positive regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Product specification LM7808J ABSOLUTE MAXIMUM RATINGS ( Ta = 25 C) O Parameter Input Voltage Output Voltage Peak Current Operating Temperature Range Storage Temperature Rang e Symbol VI VO IPK TOPR TSTG Typ 35 8.0 2.2 0~125 -65~150 Unit V V A o C C o TO-252 ELECTRICAL CHARACTERISTICS ( Ta = 25 C) O (Refer to test circuit, Io = 500mA, Vi = 14V, Ci= 0.33uF, Co=0.1uF unless otherwise specified) Parameter Output Voltage Line Regulation (Note1) Symbol VO Regline Test Conditions VI = 10.5V to 25V VI = 10.5V to 25V VI = 11.5V to 17V Load Regulation (Note1) Quiescent Current Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ RR VDrop rO ISC IPK IO = 5.0mA to1.5A IO =250mA to 750mA TJ =+25 oC f = 120Hz, VO = 11V to 21V IO = 1A, TJ =+25 oC f = 1KHz VI = 35V, TA =+25 oC TJ =+25 oC Min 7.76 — — — — — 56 — — — — Typ 8.0 5.0 2.0 10 5 5 73 2 0.017 230 2.2 Max 8.24 160 mV 80 160 80 8 — — — — — mA dB V Ω mA A mV Unit V