SEMICONDUCTOR KIA278R000FP/PI TECHNICAL DATA BIPOLAR LINEAR INTEGRATED CIRCUIT 2A ADJUSTABLE OUTPUT LOW DROP VOLTAGE REGULATOR WITH OUTPUT ON/OFF CONTROL FUNCTION. [Low Quiescent Current Type] FEATURES 2.0A Output Low Drop Voltage Regulator. Very Low Dropout Voltage : 0.5V/Max. (IOUT=2.0A) Built in ON/OFF Control Terminal. (Active High) Built in Over Current, Over Heat Protection Function, ASO Proteection Functions. Low Quiescent Current (Output OFF mode) : 0.5 A(Typ.) Adjustable Output Voltage Type : VOUT=1.5~10V Low Voltage Operation : Vopr(min.)=2.35V. MAXIMUM RATINGS (Ta=25 CHARACTERISTIC ) SYMBOL RATING UNIT Input Voltage VIN 10 V ON/OFF Control Voltage VC 10 V Output Adjustment Terminal Voltage VADJ 5 V Output Current IOUT 2.0 A Power Dissipation 1 PI (No heatsink) FB Power Dissipation 2 PI (Infinite Heatsink) FB 1.5 PD1 W 2.0 15 PD2 W 35 Tj Junction Temperature 150 Operating Temperature Topr -20 80 Storage Temperature Tstg -30 125 2006. 4. 6 Revision No : 1 1/5 KIA278R000FP/PI ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VIN=5V, VO=3.3V, IO=1A, R1=1 , Tj=25 CHARACTERISTIC ) SYMBOL CONDITIONS MIN. TYP. MAX. UNIT VIN - 2.35 - 10 V VOUT - 1.5 - 10 V Vref - 1.22 1.25 1.28 V Input Voltage Output Voltage Reference Voltage Load Regulation Reg Load IO=5mA~2A - 0.2 2.0 % Line Regulation Reg Line VIN=VOUT+1 to 8.5V, IO=5mA - 0.2 1.0 % - Temperature Coefficient of Output Votage TCVO Tj=0 125 Ripple Rejection R R IOUT=0.3A, f=120Hz, Vripple=0.5Vrms, VIN=5V, VO=3V Dropout Voltage VD , IO=5mA 1.0 20 % 45 60 - dB - - 0.5 V 2.0 - - V VC=2.7V - - 200 A IO=2A Output ON state for control Voltage VC(ON) Output ON state for control Current IC(ON) Output OFF state for control Voltage VC(OFF) IO=0 - - 0.8 V Output OFF state for control Current IC(OFF) VC=0.4V - - 2.0 A IO=0 - 1 2 mA VC=0.4V - 0.1 5 A IQ Quiescent Current Quiescent Current (OFF Mode) IQ(OFF) - BLOCK DIAGRAM PIN CONNECTION Item Pin No. 2006. 4. 6 Revision No : 1 KIA278R000PI KIA278R000FP (TO-220IS-4) (D2PAK-5) 1 VIN VIN 2 VOUT VOUT 3 GND GND 4 Adj Adj 5 - VC 2/5 KIA278R000FP/PI (1) VOUT = Vref (2) (1+R2/R1), (R1=1k , Vref=1.25V) Pin (VC) Terminal is only for KIA278R000FP (D2PAK-5) (1) ON/OFF Signal [ High : Output ON] [Low/Open : Output OFF] (2) VOUT = Vref (3) 2006. 4. 6 (1+R1/R2), (R1=1k , Vref=1.25V) Pin (VC) Terminal is only for KIA278R000FP (D2PAK-5) Revision No : 1 3/5 KIA278R000FP/PI 2006. 4. 6 Revision No : 1 4/5 KIA278R000FP/PI 2006. 4. 6 Revision No : 1 5/5