LM78L18

SMD Type Three-Terminal Positive Voltage Regulator LM78L18 SOT-89 4.50 0.1 1.80 0.1 IC Unit: mm 1.50 0.1 0.1 Features Maximum Output current IO: 0.1A Output Voltage VO: 18V Continuous Total Dissipation PD: 0.5W (Ta = 25 ) 0.48 0.1 1 2 0.53 3 0.44 0.1 0.1 0.80 0.40 3.00 0.1 0.1 2.60 0.1 2.50 0.1 4.00 0.1 1.OUT 2.GND 3.IN Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified) Parameter Input Voltage Operating Junction Temperature Range Storage Temperature Range Symbol VI TOPR TSTG -55 -55 Rating 35 +125 +150 Unit V Electrical Characteristics (VI=26V, IO=40mA,CI=0.33 F,CO=0.1 F, unless otherwise specified) Parameter Symbol TJ = 25 Output Voltage VO TJ = 0 125 , 20.5V VI 33V, IO=1mA 70mA 40mA Testconditons Min 17.3 17.1 17.1 Typ 18 18 18 27 19 70 64 4.7 VI 33V, IO = 40mA IO 40mA 89 32 36 1.7 Max 18.7 18.9 18.9 180 90 360 300 6.5 1.5 0.1 V dB V Unit V V V mV mV mV mV mA mA TJ = 0 125 , VI = 26V, IO=1mA Load Regulation VO TJ = 25 , VI = 26V, IO=1mA TJ = 25 , VI = 26V, IO=1mA Line Regulation Quiescent Current Quiescent current Change Output Noise Voltage Ripple Rejection Dropout Voltage VO IQ IQ VN RR VD TJ = 25 , 20.5V TJ = 25 , 22V TJ = 25 TJ = 0 125 , 22V VI VI 100mA 40mA 33V, IO = 40mA 33V, IO = 40mA TJ = 0 125 , VI = 26V, 1mA TJ = 25 , 10Hz f 100KHz VI TJ = 0 125 , 21.5V TJ = 25 31.5V, f = 120Hz Typical Application VI 2 LM78L18 1 VO CI 0.33 F 3 CO 0.1 F Note:Bypass capacitors are recommended for optimum stability and transient response and should be located as close as possible to the regulators. www.kexin.com.cn 1 SMD Type LM78L18 Typical Characteristics IC VO (V) 24 20 16 12 8 4 I O =0, T J = 25 VO (V) V IN = 26V, T J = 25 24 16 8 0 10 20 30 V IN (V) 0 100 200 300 I O (mA) Output Characteristics Load Characteristics VO (V) 30 25 20 15 10 5 V IN = 26V , I O = 0mA IO (mA) T J = 25 300 200 100 0 50 100 150 0 10 20 30 TA ( ) V IN - V O (V) Thermal Shutdown Short Circuit Output Current 500 PD (mW) 400 300 200 100 25 50 75 100 125 TA ( ) Power Dissipation vs. Ambient Temperature 2 www.kexin.com.cn