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| SEMICONDUCTOR TECHNICAL DATA 4 TERMINAL 2A OUTPUT LOW DROP VOLTAGE REGULATOR KIA278R25PI~KIA278R37PI BIPOLAR LINEAR INTEGRATED CIRCUIT A C The KIA278R Series are Low Drop Voltage Regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220 4 terminal lead full molded PKG. The Regulator has multi function such as over current protection, overheat protection and ON/OFF control. FEATURES 2.0A Output Low Drop Voltage Regulator. Built in ON/OFF Control Terminal. Built in Over Current Protection, Over Heat Protection Function. O E L V T V S L K U R H D DIM MILLIMETERS _ A 10.00 + 0.20 _ 15.00 + 0.20 B _ C 2.70 + 0.20 _ D 0.60 + 0.10 _ E 3.20 + 0.20 _ 3.50 + 0.10 F _ 15.70 + 0.20 G _ H 0.40 + 0.10 14.3+0.2/-0.1 J _ 1.45 + 0.10 K _ L 1.00 + 0.10 2.54 M _ N 4.50 + 0.20 _ O 7.5+ 0.1 _ 1.50 + 0.10 P R S T U V 5 8 _ 1.30 + 0.1 _ 3-1.00 + 0.1 _ 1.30 + 0.1 B J M N G F P 1 2 3 4 1 2 3 4 DC INPUT (V IN ) DC OUTPUT (VO ) GND ON/OFF CONTROL LINE UP ITEM * KIA278R25PI * KIA278R30PI KIA278R33PI * KIA278R35PI * KIA278R37PI * Note) * : Under Development. OUTPUT VOLTAGE (Typ.) 2.5 3.0 3.3 3.5 3.7 V UNIT TO-220IS-4 MAXIMUM RATINGS (Ta=25 CHARACTERISTIC Input Voltage ON/OFF Control Voltage Output Current Power Dissipation 1 Power Dissipation 2 Junction Temperature Operating Temperature Storage Temperature Soldering Temperature (10sec) ) SYMBOL VIN VC IO Pd1 Pd2 Tj Topr Tstg Tsol RATING 15 15 2 1.5 15 125 -20 -30 80 125 UNIT V V A W W Remark No heatsink with heatsink - 260 2001. 6. 28 Revision No : 3 1/5 KIA278R25PI~KIA278R37PI ELECTRICAL CHARACTERISTICS (Ta=25 ) (Unless otherwise specified, IO=1.0A, Ta=25 CHARACTERISTIC KIA278R25 KIA278R30 Output Voltage KIA278R33 KIA278R35 KIA278R37 Load Regulation Line Regulation Temperature Coefficient of Output Voltage Ripple Rejection Drop Out Voltage Output ON state for control Voltage Output ON state for control Current Output OFF state for control Voltage Output OFF state for control Current Quiescent Current Note1) VIN of KIA278R25=4.2V " " " " KIA278R30=4.7V KIA278R33=5.0V KIA278R35=5.2V KIA278R37=5.4V " " " " Reg Load Reg Line TCVO RR VD VC(ON) IC(ON) VC(OFF) IC(OFF) IQ VC=0.4V IO=0 10V 10V 10V 10V 10V VC=2.7V IO=2A IO=5mA 2A (Note 2) Tj=0 125 VO , Note1.) SYMBOL CONDITIONS MIN. 2.438 2.925 3.220 3.413 3.608 45 2.0 Note3) At VIN=0.95VO TYP. 2.50 3.00 3.30 3.50 3.70 0.1 0.5 0.02 55 MAX. 2.562 3.075 3.380 3.587 3.792 2.0 2.5 0.05 0.5 20 0.8 -0.4 103 % % %/ dB V V A V mA mA V UNIT Note2) VIN of KIA278R25=3.2 KIA278R30=3.7 KIA278R33=4.0 KIA278R35=4.2 KIA278R37=4.4 BLOCK DIAGRAM VIN 1 2 Vo + BANDGAP REFERENCE ASO PROTECTION 4 Control OUTPUT ON/OFF CONTROL OVER HEAT PROTECTION 3 GND 2001. 6. 28 Revision No : 3 2/5 KIA278R25PI~KIA278R37PI Fig. 1 Standard Test Circuit V IN 47F 1 KIA278RXXPI 4 3 0.33F A Iq 2 Vc A A RL Io Vo V Ic Fig. 1-2 Ripple Rejection Test Circuit 1 KIA278RXXPI ei 3 2 4 RL V eo 47F V IN 0.33F f=120Hz(sine wave) ei=0.5Vrms RR=20log(ei/eo) Fig. 2 Application Circuit for Standard V IN Vo 1 2 Specific IC 3 4 ON/OFF signal CMOS or TTL Co High or Open:Output ON :Output OFF Low 2001. 6. 28 Revision No : 3 Load 3/5 KIA278R25PI~KIA278R37PI Fig.3 Ta - PD POWER DISSIPATION PD (W) P D1:No heat sink p D 2:With infinite heat sink PD 2 Fig.4 I O - VO RELATIVE OUTPUT VOLTAGE (%) 100 80 60 40 20 0 20 15 10 5 P D1 0 -25 0 50 100 150 0 1.0 2.0 3.0 4.0 AMBIENT TEMPERATURE Ta ( C) Note) Oblique line portion : Overheat protection may operate in this area. OUTPUT CURRENT I O (A) Fig.5-1 T j Vo (mV) 150 100 50 0 -50 -100 -25 VIN =4.2V I O =0.5A Vo (KIA278R25) Vo (mV) 150 100 50 0 Fig.5-2 T j - Vo (KIA278R30) VIN =4.7V IO =0.5A OUTPUT VOLTAGE DEVIATION OUTPUT VOLTAGE DEVIATION -50 -100 -25 0 25 50 75 100 125 0 25 50 75 100 125 JUNCTION TEMPERATURE T j ( C) JUNCTION TEMPERATURE T j ( C) Fig.5-3 T j Vo (mV) 150 100 50 0 -50 -100 -25 VIN =5.0V I O =0.5A Vo (KIA278R33) Vo (mV) 150 100 50 0 Fig.5-4 T j - Vo (KIA278R35) VIN =5.2V IO =0.5A OUTPUT VOLTAGE DEVIATION OUTPUT VOLTAGE DEVIATION -50 -100 -25 0 25 50 75 100 125 0 25 50 75 100 125 JUNCTION TEMPERATURE T j ( C) JUNCTION TEMPERATURE T j ( C) 2001. 6. 28 Revision No : 3 4/5 KIA278R25PI~KIA278R37PI Fig.5-1 T j OUTPUT VOLTAGE DEVIATION Vo (mV) 150 100 50 0 -50 -100 -25 VIN =5.4V I O =0.5A Vo (KIA278R37) 0.5 DROPOUT VOLTAGE VD (V) 0.4 0.3 0.2 0.1 0 Fig.6 T j - VD I O =2A I O=1.5A I O=1A I O =0.5A 0 25 50 75 100 125 -25 0 25 50 75 100 125 JUNCTION TEMPERATURE T j ( C) JUNCTION TEMPERATURE T j ( C) Fig.7 T j - I q 10 QUIESCENT CURRENT I q (mA) 8 6 4 2 80 RIPPLE REJECTION RR (dB) V IN =35V IO =0 Fig.8-1 f - RR 70 60 50 40 30 20 10 0 0.1 IO =0.5A,ei=0.5V rms VIN =4.2V(KIA278R25) VIN =4.7V(KIA278R30) VIN =5.0V(KIA278R33) VIN =5.2V(KIA278R35) VIN =5.4V(KIA278R37) 0 -25 0 25 50 75 100 125 1 10 100 JUNCTION TEMPERATURE Tj ( C) INPUT RIPPLE FREQUENCY f (kHz) Fig.10-2 I O - RR 70 RIPPLE REJECTION RR (dB) 60 50 40 30 20 0.1 f=120Hz,ei=0.5Vrms C ref =3.3F VIN =4.2V(KIA278R25) VIN =4.7V(KIA278R30) VIN =5.0V(KIA278R33) VIN =5.2V(KIA278R35) VIN =5.4V(KIA278R37) 0.5 OUTPUT CURRENT I O (A) 1.0 2001. 6. 28 Revision No : 3 5/5 |
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