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278R33 Dataheets PDF



Part Number 278R33
Manufacturers UTC
Logo UTC
Description 4 TERMINAL 2A OUTPUT LOW DROP VOLTAGE REGULATOR
Datasheet 278R33 Datasheet278R33 Datasheet (PDF)

UNISONIC TECHNOLOGIES CO., LTD 278RXX LINEAR INTEGRATED CIRCUIT 4 TERMINAL 2A OUTPUT LOW DROP VOLTAGE REGULATOR  DESCRIPTION The UTC 278RXX Series are Low Drop Voltage Regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220F-4 terminal lead full molded PKG. The Regulator has multi function such as over current protection, overheat protection and ON/OFF control. 1 TO-220F-4  FEATURES * 2.0A Output Low Drop Voltage Regulator. * Built in .

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UNISONIC TECHNOLOGIES CO., LTD 278RXX LINEAR INTEGRATED CIRCUIT 4 TERMINAL 2A OUTPUT LOW DROP VOLTAGE REGULATOR  DESCRIPTION The UTC 278RXX Series are Low Drop Voltage Regulator suitable for various electronic equipments. It provides constant voltage power source with TO-220F-4 terminal lead full molded PKG. The Regulator has multi function such as over current protection, overheat protection and ON/OFF control. 1 TO-220F-4  FEATURES * 2.0A Output Low Drop Voltage Regulator. * Built in ON/OFF Control Terminal. * Built in Over Current Protection, Over Heat Protection Function.  ORDERING INFORMATION Note: Ordering Number Lead Free Halogen Free 278RXXL-TF4-T 278RXXG-TF4-T xx: Output Voltage, refer to Marking Information. Package TO-220F-4 Packing Tube 278RXXG-TF4-T (1)Packing Type (2)Package Type (3)Green Package (4)Voltage Code (1) T: Tube (2) TF4: TO-220F-4 (3) G: Halogen Free and Lead Free, L: Lead Free (4) XX: Refer to Marking Information www.unisonic.com.tw Copyright © 2019 Unisonic Technologies Co., Ltd 1 of 8 QW-R102-048.G 278RXX  MARKING INFORMATION PACKAGE TO-220F-4 VOLTAGE CODE 05: 5.0V 06: 6.0V 08: 8.0V 12: 12V 15: 15V 33: 3.3V  PIN CONFIGURATION LINEAR INTEGRATED CIRCUIT Voltage Code Lot Code MARKING UTC 278RXX L: Lead Free G: Halogen Free Date Code UTC 278RXX 12 34 VIN VO GND Control  PIN DESCRIPTION PIN NO. 1 2 3 4 PIN NAME VIN VOUT GND Control Input DC supply voltage Output voltage pin Ground pin for the IC ON/OFF control pin DESCRIPTION UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R102-048.G 278RXX  BLOCK DIAGRAM VIN 1 LINEAR INTEGRATED CIRCUIT 2 VO BANDGAP REFERENCE ASO PROTECTION Control 4 OUTPUT ON/OFF CONTROL OVER HEAT PROTECTION 3 GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R102-048.G 278RXX LINEAR INTEGRATED CIRCUIT  ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) PARAMETER SYMBOL REMARK RATINGS UNIT Input Voltage VIN 35 V ON/OFF Control Voltage VC 35 V Output Current IO 2A Power Dissipation 1 PD1 No heatsink 1.5 W Junction Temperature TJ +150 °C Operating Temperature TOPR -20 ~ +80 °C Storage Temperature TSTG -30 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.  THERMAL DATA PARAMETER Junction to Ambient Junction to Case SYMBOL θJA θJC RATINGS 83 8  ELECTRICAL CHARACTERISTICS (TA=25°C, IO=1.0A, unless otherwise specified) UNIT °C/W °C/W For 278R05 (VIN=7V) PARAMETER Output Voltage Load Regulation Line Regulation Ripple Rejection Drop Out Voltage (Note) 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 For 278R06 (VIN=8V) PARAMETER Output Voltage Load Regulation Line Regulation Ripple Rejection Drop Out Voltage (Note) 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 SYMBOL VO Reg Load Reg Line R·R VD VC(ON) IC(ON) VC(OFF) IC(OFF) IQ TEST CONDITIONS IO=5mA~2A VIN=6~12V IO=2A VC=2.7V VC=0.4V IO=0 MIN 4.875 45 2.0 TYP 5.0 0.1 0.5 55 MAX 5.125 2.0 2.5 0.5 20 0.8 0.4 10 UNIT V % % dB V V μA V mA mA SYMBOL VO Reg Load Reg Line R·R VD VC(ON) IC(ON) VC(OFF) IC(OFF) IQ TEST CONDITIONS IO=5mA~2A VIN=7~13V IO=2A VC=2.7V VC=0.4V IO=0 MIN 5.850 45 2.0 TYP 6.0 0.1 0.5 55 MAX 6.150 2.0 2.5 0.5 20 0.8 0.4 10 UNIT V % % dB V V μA V mA mA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R102-048.G 278RXX LINEAR INTEGRATED CIRCUIT  ELECTRICAL CHARACTERISTICS (Cont.) For 278R08 (VIN=10V) PARAMETER Output Voltage Load Regulation Line Regulation Ripple Rejection Drop Out Voltage (Note) 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 For 278R12 (VIN=18V) PARAMETER Output Voltage Load Regulation Line Regulation Ripple Rejection Drop Out Voltage (Note) 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 SYMBOL VO Reg Load Reg Line R·R VD VC(ON) IC(ON) VC(OFF) IC(OFF) IQ TEST CONDITIONS IO=5mA~2A VIN=9~15V IO=2A VC=2.7V VC=0.4V IO=0 MIN 7.800 45 2.0 TYP 8.0 0.1 0.5 55 MAX 8.200 2.0 2.5 0.5 20 0.8 0.4 10 UNIT V % % dB V V μA V mA mA SYMBOL VO Reg Load Reg Line R·R VD VC(ON) IC(ON) VC(OFF) IC(OFF) IQ TEST CONDITIONS IO=5mA~2A VIN=13~29V IO=2A VC=2.7V VC=0.4V IO=0 MIN 11.70 45 2.0 TYP 12.0 0.1 0.5 55 MAX 12.30 2.0 2.5 0.5 20 0.8 0.4 10 UNIT V % % dB V V μA V mA mA For 278R15 (VIN=21V) PARAMETER Output Voltage Load Regulation Line Regulation Ripple Rejection Drop Out Voltage (Not.


278R12 278R33 2SC3077


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