UTC78XX LINEAR INTEGRATED CIRCUIT YOUW ANG ELECTRONICS CO.LTD 1 3 TERMINAL 1A POSITIVE VOLTAGE REGULATORS

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1 TERMINAL A POSITIVE VOLTAGE REGULATORS DESCRIPTION The series o three-terminal positive regulators are available in TO-0 package and with several fixed output voltage, making them useful in a wide range of application. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided,they can deliver over A output current, Although designed as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. TO-0 FEATURES *Output current up to A *5V;6V;8V;9V;0V;V;5V;8V;4V output voltage available *Thermal overload protection *Short circuit protection *Output transistor SOA protection :INPUT; :GND; :OUTPUT BLOCK DIAGRAM Input Output GND ABSOLUTE MAXIMUM RATINGS(Ta=5 C) Characteristic Symbol Value Unit Input voltage (for =5V to 8V) (for=4v) 5 40 V V Thermal resistance junction-air Rθ JA 65 C/W Thermal resistance junction-cases R JC 5 C/W Operating Temperature Topr 0~ +5 C Storage Temperature Tstg -65 ~ +50 C YOUW ANG ELECTRONICS CO.LTD

2 UTC7805 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=0V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =7V to 0V V Line regulation Tj=5 C,=7V to 5V mv Tj=5 C,=8V to V.6 50 mv Load regulation Tj=5 C,Io=5.0mA to.5a 9 00 mv Tj=5 C,Io=50mA to 750mA 4 50 mv Quiescent current IQ Tj=5 C ma Quiescent current change IQ Io=5mA to.0a ma =7V to 5V 0.. ma Output voltage drift / T Io=5mA -0.8 mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 4 µv Ripple rejection RR f=0hz, =8V to 8V 6 7 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 5 mω Short circuit current Isc =5V,Ta=5 C 0 ma peak current Ipk Tj=5 C. A UTC7806 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =8V to V V Line regulation Tj=5 C,=8V to 5V 5 0 mv Tj=5 C,=9V to V.5 60 mv Load regulation Tj=5 C,Io=5.0mA to.5a 9 0 mv Tj=5 C,Io=50mA to 750mA 60 mv Quiescent current IQ Tj=5 C ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =8V to 5V. ma Output voltage drift / T Io=5mA -0.8 mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 45 µv Ripple rejection RR f=0hz, =9V to 9V db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 9 mω Short circuit current Isc =5V,Ta=5 C 50 ma peak current Ipk Tj=5 C. A YOUW ANG ELECTRONICS CO.LTD

3 UTC7808 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=4V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =0.5V to V V Line regulation Tj=5 C,=0.5V to 5V mv Tj=5 C,=.5V to 7V.0 80 mv Load regulation Tj=5 C,Io=5.0mA to.5a 0 60 mv Tj=5 C,Io=50mA to 750mA mv Quiescent current IQ Tj=5 C ma Quiescent current change IQ Io=5mA to.0a ma =.5V to 5V ma Output voltage drift / T Io=5mA -0.8 mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 5 µv Ripple rejection RR f=0hz, =.5V to.5v 56 7 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 7 mω Short circuit current Isc =5V,Ta=5 C 0 ma peak current Ipk Tj=5 C. A UTC7809 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=5V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =.5V to 4V V Line regulation Tj=5 C,=.5V to 5V 6 80 mv Tj=5 C,=V to 5V 90 mv Load regulation Tj=5 C,Io=5.0mA to.5a 80 mv Tj=5 C,Io=50mA to 750mA 4 90 mv Quiescent current IQ Tj=5 C ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =.5V to 6V. ma Output voltage drift / T Io=5mA - mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 58 µv Ripple rejection RR f=0hz, =V to V 56 7 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 5 mω Short circuit current Isc =5V,Ta=5 C 50 ma peak current Ipk Tj=5 C. A YOUW ANG ELECTRONICS CO.LTD

4 UTC780 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=6V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =.5V to 5V V Line regulation Tj=5 C,=.5V to 5V 0 00 mv Tj=5 C,=V to 0V 00 mv Load regulation Tj=5 C,Io=5.0mA to.5a 00 mv Tj=5 C,Io=50mA to 750mA 4 00 mv Quiescent current IQ Tj=5 C ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =.5V to 9V.0 ma Output voltage drift / T Io=5mA - mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 58 µv Ripple rejection RR f=0hz, =4V to 4V 56 7 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 7 mω Short circuit current Isc =5V,Ta=5 C 50 ma peak current Ipk Tj=5 C. A UTC78 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=6V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =4.5V to 7V.4.6 V Line regulation Tj=5 C,=4.5V to 0V 0 40 mv Tj=5 C,=6V to V 0 mv Load regulation Tj=5 C,Io=5.0mA to.5a 40 mv Tj=5 C,Io=50mA to 750mA mv Quiescent current IQ Tj=5 C 5. 8 ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =4.5V to 0V.0 ma Output voltage drift / T Io=5mA - mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 76 µv Ripple rejection RR f=0hz, =5V to 5V 55 7 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 8 mω Short circuit current Isc =5V,Ta=5 C 0 ma peak current Ipk Tj=5 C. A YOUW ANG ELECTRONICS CO.LTD 4

5 UTC785 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =7.5V to 0V V Line regulation Tj=5 C,=7.5V to 0V 00 mv Tj=5 C,=0V to 6V 50 mv Load regulation Tj=5 C,Io=5.0mA to.5a 00 mv Tj=5 C,Io=50mA to 750mA 4 50 mv Quiescent current IQ Tj=5 C 5. 8 ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =7.5V to 05V.0 ma Output voltage drift / T Io=5mA - mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 90 µv Ripple rejection RR f=0hz, =8.5V to 8.5V db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 9 mω Short circuit current Isc =5V,Ta=5 C 50 ma peak current Ipk Tj=5 C. A UTC788 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C V Output voltage 5.0mA<Io<.0A,Po<5W =V to V V Line regulation Tj=5 C,=V to V 5 60 mv Tj=5 C,=4V to 0V 5 80 mv Load regulation Tj=5 C,Io=5.0mA to.5a 5 60 mv Tj=5 C,Io=50mA to 750mA mv Quiescent current IQ Tj=5 C 5. 8 ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =V to V.0 ma Output voltage drift / T Io=5mA - mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 0 µv Ripple rejection RR f=0hz, =V to V 5 69 db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz mω Short circuit current Isc =5V,Ta=5 C 50 ma peak current Ipk Tj=5 C. A YOUW ANG ELECTRONICS CO.LTD 5

6 UTC784 ELECTRICAL CHARACTERISTICS (Refer to test circuits,0<tj<5 C,Io=500mA,=V,Ci=0.µF, Co=0.µF, unless otherwise specified) Tj=5 C 4 5 V Output voltage 5.0mA<Io<.0A,Po<5W =7V to 8V V Line regulation Tj=5 C,=7V to 8V mv Tj=5 C,=0V to 6V 6 40 mv Load regulation Tj=5 C,Io=5.0mA to.5a mv Tj=5 C,Io=50mA to 750mA mv Quiescent current IQ Tj=5 C 5. 8 ma Quiescent current change IQ Io=5mA to.0a 0.5 ma =7V to 8V.0 ma Output voltage drift / T Io=5mA -.5 mv/ C Output noise voltage VN f=0hz to 00kHz,Ta=5 C 60 µv Ripple rejection RR f=0hz, =8V to 8V db Dropout voltage Io=.0A,Tj=5 C V Output resistance Ro f=khz 8 mω Short circuit current Isc =5V,Ta=5 C 0 ma peak current Ipk Tj=5 C. A TEST CIRCUITS C 0.µF C0 0.µF 0.µF RL TIP 70pF 00Ω 0µs FIG. DC PARAMETERS A FIG. LOAD REGULATIAON 5.Ω 470µF 0.µF RL 0Hz FIG. RIPPLE REJECTION YOUW ANG ELECTRONICS CO.LTD 6

7 APPLICATION CIRCUITS C 0.µF C0 0.µF 0.µF IQ 0.µF R Vxx Io= Vxx +IQ R RL Io Fig.4 Fixed output regulator OFig.5 Constant current regulator UTC µF IQ 0.µF Vxx R 0.µF 0.µF IR>=5*IQ =Vxx*(+R/R)+ IQ*R R UTC74 0kΩ Fig.6 Circuit for increasing Regulator output voltage A Fig.7 Adjustable output R 0Ω 0.µF Q BD56 IREG IQ IO 0.µF R 0Ω Rsc Q TIP4 0.µF Q BD56 0.µF Rsc=VBEQ/ Isc Io=IREG*(IREG-VBEQ/R) R=VBEQ/IREQ-IQ*Q Fig.8 High current with voltage regulator A Fig.9 High output curent short circuit protection 0.µF GND -n TIP4 0.µF 4.7kΩ UTC74 4.7kΩ GND - 0V UTC785 +5V 0.µF 0.µF.µF µf N400 UTC795-0V -5V Fig.0 Tracking voltage regulator A Fig. Split power supply( ±5V,A) N400 YOUW ANG ELECTRONICS CO.LTD 7

8 D45H mh 0.µF 4.7Ω 470Ω Z 0µF 000µF 0.5Ω Fig. Negative output voltage ciruit A Fig. switching regulataor TYPICAL PERFORMANCE CHARACTERISTICS Fig.4 Quiescent current Fig.5 Output voltage Quiescent current (ma) =0V =5V Io=5mA Junction temperature ( ) Normailized output voltage (V) =5V Io=5mA Junction temperature ( ).0.5 Tj=5 =00mV Fig.6 Peak output current Tj=5 =5V Io=0mA Fig.7 Quiescent current Output current (A) Quiescent current (ma) input-output differential (V) Input voltage?(v) YOUW ANG ELECTRONICS CO.LTD 8

MC78XXE. 3-Terminal 1A Positive Voltage Regulator. Features. Description. Internal Block Digram.

MC78XXE. 3-Terminal 1A Positive Voltage Regulator. Features. Description. Internal Block Digram. -Terminal A Positive Voltage Regulator www.fairchildsemi.com Features Current up to A Voltages of 5, V Thermal Overload Protection Short Circuit Protection Transistor Safe Operating Area Protection Description