A78R08PIC

A78RxxPIC LDO Fixed Regulator IC Description The A78Rxx Series is a low dropout voltage regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220F-4SL lead full-mold package. Dropout voltage of A78Rxx Series is below Max.0.5V in full rated current (1.0A). This regulator has various functions such as current limit protection, over voltage protection and output on/off control. Features • 1.0A output low dropout regulator • TO-220F-4SL full-mold package (4pin) • Current limit protection • Over voltage protection • Thermal shutdown protection • With output on/off control (At typical 1.5V) • Control pin open or high signal, output on Pin Connection 1. INPUT 2. OUTPUT 3. GROUND 1 2 3 4. ON/OFF CONTROL 4 Ordering Information Product A78RxxPIC Marking A78RxxPI Package TO-220F-4SL A78RxxPI(①) YYWW(②) ① Device Code ② Year & Week Code Device Selection Guide Device A78R33PIC A78R35PIC A78R05PIC A78R06PIC A78R08PIC A78R09PIC A78R12PIC Output Voltage 3.3V 3.5V 5.0V 6.0V 8.0V 9.0V 12.0V KSD-I0S002-006 1 A78RxxPIC Block Diagram Absolute Maximum Ratings Characteristic Input Voltage Control Input Voltage [Ta=25℃] Symbol VI VCT PD1(No Heatsink) Rating 18(All Others) 25(A78R12PIC) 18 2.0 20 150 -20 ~ 80 -55 ~ 150 Unit V V V W W °C °C °C Power Dissipation PD2(With Heatsink) Junction Temperature Operating Temperature Range Storage Temperature Range TJ Topr Tstg KSD-I0S002-006 2 A78RxxPIC Electrical Characteristics (VI = VO+2V, Io = 500mA, VCT(High)=2.7V, Ta = 25°C, unless otherwise specified) Electric Characteristic Symbol A78R33PIC A78R35PIC A78R05PIC Output Voltage VO A78R06PIC A78R08PIC A78R09PIC A78R12PIC Line Regulation Load Regulation Quiescent Current Ripple Rejection Ratio Dropout Voltage Control Voltage High Control Voltage Low Control Bias Current High Control Bias Current Low Note 1. A78R33: VI=4.3V~12V A78R05: VI=6V~12V A78R08: VI=9V~16V A78R12: VI=12V~16V A78R35: VI=4.5V~12V A78R06: VI=7V~15V A78R09: VI=10V~16V △VO(△VI) △VO(△IL) IQC RR VDROP VCT(High) VCT(Low) ICT(High) ICT(Low) Note1, IO=500mA 5mA≤IO≤1.0A IO=0mA (VO+2V)≤VI≤12V, IO=50mA f=120Hz IO=1.0A IO=0mA, Output ON IO=0mA, Output OFF VCT(High) = 2.7V VCT(Low) = 0.4V Conditions Min. 3.22 3.41 4.88 5.85 7.80 8.78 11.7 45 2.0 Typ. 3.3 3.5 5.0 6.0 8.0 9.0 12.0 0.5 0.1 55 Max. 3.38 3.59 5.12 6.15 8.20 9.22 12.3 2.5 2.0 10 0.5 0.8 20 -0.4 Unit V V V V V V V % % mA dB V V V μA mA ◈ Test Circuit of A78RxxPIC ㎌ ㎌ KSD-I0S002-006 3 A78RxxPIC Electrical Characteristic Curves Fig.1 IO vs. VO 100 25 Fig.2 Ta vs. PD Relative Output Voltage [%] 80 Power dissipation PD [W] A78RxxPIC 20 60 15 40 10 20 5 Without Heat Sink 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 0 25 50 75 100 125 150 Output Current IO [A] Ambient Temperature Ta [˚C] Fig.3 VI vs. IQC 30 30 Fig.4 VI vs. IQC A78R05PIC VI=0V~12V Quiescent Current IQC [mA] 24 Quiescent Current IQC [mA] A78R33PIC VI=0V~12V 24 18 18 12 12 IO=1.0A IO=0.5A IO=0.0A 0 2 4 6 8 10 12 6 IO=0.0A 0 0 2 4 6 8 10 12 6 0 Input Voltage VI [V] Input Voltage VI [V] Fig.5 VI vs. IQC 30 30 Fig.6 VI vs. IQC A78R08PIC VI=0V~15V A78R09PIC VI=0V~15V Quiescent Current IQC [mA] 24 Quiescent Current IQC [mA] 24 18 18 12 12 6 IO=0.0A 0 0 2.5 5.0 7.5 10.0 12.5 15.0 6 IO=0.0A 0 0 2.5 5.0 7.5 10.0 12.5 15.0 Input Voltage VI [V] KSD-I0S002-006 Input Voltage VI [V] 4 A78RxxPIC Electrical Characteristic Curves Fig.7 VI vs. IQC 5 50 Fig.8 Tj vs. IQC A78RxxPIC IO=0.0A Quiescent Current IQC [mA] Quiescent Current IQC [mA] 40 A78R12PIC VI=0V~20V 4 3 30 2 20 1 10 IO=0.0A 0 0 4 8 12 16 20 24 0 -25 0 25 50 75 100 125 Input Voltage VI [V] Fig.9 VCT vs. VO 125 5.2 5.1 Junction Temperature Tj [℃] Fig.10 Tj vs. VO A78R05PIC IO=0.5A Relative Output Voltage [%] Output Voltage VO [V] A78RxxPIC 100 75 5.0 50 4.9 25 4.8 0 0 0.5 1.0 1.5 2.0 2.5 3.0 4.7 -25 0 25 50 75 100 125 Control Voltage VCT [V] Junction Temperature Tj [℃] KSD-I0S002-006 5 A78RxxPIC Outline Dimension KSD-I0S002-006 6 A78RxxPIC The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I0S002-006 7