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1 3-TERMINAL A POSITIVE VOLTAGE REGULATOR DESCRIPTION The Contek 78XX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that required supply current up to A. FEATURES *Output current up to.5 A *Fixed output voltage of 5V, 6V, 8V, 9V, 0V, 2V, 5V,8V and 24V available *Thermal overload shutdown protection *Short circuit current limiting *Output transistor SOA protection TO-220 TEST CIRCUIT :Input 2:GND 3:Output INPUT R3 R7 R9 Z2 T2 R4 T0 T T8 T5 T9 T3 R9 R8 R T4 R2 R0 OUTPUT 3 T6 R8 Z R5 T4 R5 T5 R4 R6 R6 R R2 C T3 T7 R7 T T2 Contek R3 GND 2
2 ABSOLUTE MAXIMUM RATINGS ( Operating temperature range applies unless otherwise specified ) PARAMETER SYMBOL RATING UNIT Input voltage(for Vo=5~8V) (for Vo=24V) V I V V Output Current I o A Power Dissipation PD Internally Limited W Operating Junction Temperature Range TOPR C Storage Temperature Range TSTG C Contek LM7805 ELECTRICAL CHARACTERISTICS ( VI=0V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =7.5V to 20V, V IO=5mA -.0A,PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 50 mv Tj=25 C,IO=0.25A A 25 mv Line regulation Vo VI =7V to 25V,Tj=25 C 50 mv VI =7.5V to 20V,Tj=25 C,Io=A 50 mv Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =7.5V to 20V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 40 V Temperature coefficient of Vo Vo/ T Io=5mA -0.6 mv/ C Ripple Rejection RR VI =8V - 8V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A Contek LM7806 ELECTRICAL CHARACTERISTICS ( VI=V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =8.5V to 2V, V IO=5mA -.0A, PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 60 mv Tj=25 C,IO=0.25A A 30 mv Line regulation Vo VI =8V to 25V,Tj=25 C 60 mv VI =8.5V to 2V,Tj=25 C,Io=A 60 mv Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =8.5V to 2V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 45 V Temperature coefficient of Vo Vo/ T Io=5mA -0.7 mv/ C Ripple Rejection RR VI =9V - 9V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A 2
3 Contek LM7808 ELECTRICAL CHARACTERISTICS ( VI=4V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =0.5V to 23V, V IO=5mA -.0A, PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 80 mv Tj=25 C,IO=0.25A A 40 mv Line regulation Vo VI =0.5V to 25V,Tj=25 C 80 mv VI =0.5V to 23V,Tj=25 C,Io=A 80 mv Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =0.5V to 23V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 58 V Temperature coefficient of Vo Vo/ T Io=5mA -0.9 mv/ C Ripple Rejection RR VI =.5V to 2.5V, db f=20hz,tj=25 C Peak Output Current IPK Tj=25 C.8 A Contek LM7809 ELECTRICAL CHARACTERISTICS ( VI=5V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =.5V to 24V, V IO=5mA -.0A,PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 90 mv Tj=25 C,IO=0.25A A 45 mv Line regulation Vo VI =.5V to 25 V, 90 mv Tj=25 C, PD<5W VI =.5V to 24V,Tj=25 C, 90 mv Io<=A Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =.5V to 24V.0 ma Iq IO=5mA.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 58 V Temperature coefficient of Vo Vo/ T Io=5mA -. mv/ C Ripple Rejection RR VI =2.5V to 22.5V, db f=20hz,tj=25 C Peak Output Current IPK Tj=25 C.8 A 3
4 Contek LM780 ELECTRICAL CHARACTERISTICS ( VI=6V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =2.5V to 25V, V IO=5mA -.0A,PD<=5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 00 mv Tj=25 C,IO=0.25A A 50 mv Line regulation Vo VI =3V to 25V,Tj=25 C 00 mv VI =3V to 25V, 00 mv Tj=25 C,Io<=A Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =2.6V to 25V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 58 V Temperature coefficient of Vo Vo/ T Io=5mA -. mv/ C Ripple Rejection RR VI =3V - 23V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A Contek LM782 ELECTRICAL CHARACTERISTICS ( VI=9V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =4.5V to 27V, V IO=5mA -.0A,PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 20 mv Tj=25 C,IO=0.25A A 60 mv Line regulation Vo VI =4.5V to 30V,Tj=25 C 20 mv VI =4.6V to 27V,Tj=25 C, 20 mv Io=A Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =4.5V to 30V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 75 V Temperature coefficient of Vo Vo/ T Io=5mA -.5 mv/ C Ripple Rejection RR VI =5V - 25V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A 4
5 Contek LM785 ELECTRICAL CHARACTERISTICS ( VI=23V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =7.5V to 30V, V IO=5mA -.0A,PD<5W Load Regulation Vo Tj=25 C,IO=5mA -.5A 50 mv Tj=25 C,IO=0.25A A 75 mv Line regulation Vo VI =8.5V to 30V,Tj=25 C 50 mv VI =7.7V to 30V, 50 mv Tj=25 C, IO =A Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =7.5V to 30V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 90 V Temperature coefficient of Vo Vo/ T Io=5mA -.8 mv/ C Ripple Rejection RR VI =8.5V to 28.5V db f=20hz,tj=25 C Peak Output Current IPK Tj=25 C.8 A Contek LM788 ELECTRICAL CHARACTERISTICS ( VI=27V, Io=0.5A, Tj= 0 C - 25 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =2V to 33V,I O=5mA -.0A V Load Regulation Vo Tj=25 C,IO=5mA -.5A 80 mv Tj=25 C,IO=0.25A A 90 mv Line regulation Vo VI =2V to 33V,Tj=25 C 80 mv VI =2V to 33V, 80 mv Tj=25 C, IO =<A,PD<5W Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =2.5V to 33V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 0 V Temperature coefficient of Vo Vo/ T Io=5mA -2.2 mv/ C Ripple Rejection RR VI =22V - 32V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A 5
6 Contek LM7824 ELECTRICAL CHARACTERISTICS ( VI=33V, Io=0.5A, Tj= 0 C - 2 C, C=0.33uF, Co=0.uF, unless otherwise specified )(Note ) Tj=25 C, IO=5mA -.0A V Output Voltage Vo VI =27V to 38V,I O=5mA -.0A V Load Regulation Vo Tj=25 C,IO=5mA -.5A 240 mv Tj=25 C,IO=0.25A A 20 mv Line regulation Vo VI =27V to 38V,Tj=25 C 240 mv VI =27V to 38V,Tj=25 C,Io=A 240 mv Quiescent Current Iq Tj=25 C, IO=<A 8.0 ma Quiescent Current Change Iq VI =28V to 38V.0 ma Iq IO=5mA -.0A 0.5 ma Output Noise Voltage VN 0Hz<=f<=00kHz 70 V Temperature coefficient of Vo Vo/ T Io=5mA -2.8 mv/ C Ripple Rejection RR VI =28V - 38V,f=20Hz,Tj=25 C db Peak Output Current IPK Tj=25 C.8 A Note : Note 2: The Maximum steady state usable output current are dependent on input voltage, heat sinking, lead length of the package and copper pattern of PCB. The data above represents pulse test conditions with junction temperatures specified at the initiation of test. Power dissipation<0.5w APPLICATION CIRCUIT Vi Contek 3 Vo C 0.33 F 2 C0 0. F Note : Note 2: To specify an output voltage, substitute voltage value for " XX". Bypass capacitors are recommended for optimum stability and transient response and should be located as close as possible to the regulators. 6
7 This datasheet has been downloaded from: Datasheets for electronic components.
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