UTC78D18

UTC 78DXX LINEAR INTEGRATED CIRCUIT 3-TERMINAL 0.5A POSITIVE VOLTAGE REGULATOR DESCRIPTION The UTC 78DXX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that required supply current up to 0.5 A. 1 TO-252 FEATURE *Output current up to 0.5 A *Fixed output voltage of 3.3V,4.7V,5V, 6V, 8V, 9V, 12V, 15V ,18V and 24V available *Thermal overload shutdown protection *Short circuit current limiting *Output transistor SOA protection 1 TO-251 1: Input 2: GND 3: Output EQUIVALENT CIRCUIT INPUT 1 R13 T10 R17 T8 R9 T9 Z2 T12 T14 R19 R18 R11 R14 T11 T13 T5 T6 R12 R10 OUTPUT 3 R8 R15 T4 Z1 T15 R5 R4 R6 T7 R16 R1 R2 C1 T3 R7 T1 T2 R3 GND 2 UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R101-005,C UTC 78DXX PARAMETER LINEAR INTEGRATED CIRCUIT SYMBOL VI Io PD TJ TSTG Internally ABSOLUTE MAXIMUM RATINGS ( Operating temperature range applies unless otherwise specified ) VALUE 35 40 0.5 Limited +150 -65 to+150 UNIT V V A W °C °C Input voltage(for Vo=5~18V) (for Vo=20~24V) Output Current Power Dissipation Operating Junction Temperature Range Storage Temperature Range UTC 78D33 ELECTRICAL CHARACTERISTICS ( VI=8.5V, Io=0.5A, Tj= 0°C - 12°C, C1=0.33uF, Co=0.1uF, unless otherwise specified )(Note 1) PARAMETER Output Voltage SYMBOL Vo TEST CONDITIONS Tj=25°C, IO=5mA –0.5A VI =5.8V to 18.3V IO=5mA– 0.5A PD<7W Tj=25°C,IO=5mA – 0.5A Tj=25°C,IO=5mA – 200mA VI =5.8V to 18.3V,Tj=25°C VI=5.8V to18.3V,Tj=25°C,Io=0.5A Tj=25°C,...