LM78L18 - Datasheet Archive

IC Three-Terminal Positive Voltage Regulator LM78L18 SOT-89 Unit: mm 1.50 0.1 2.50 0.1 4.00 0.1 4.50 0.1 1.80 0.1 Features 2 3

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