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EUP2571VCIR1 Datasheet(PDF) 4 Page - Eutech Microelectronics Inc |
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EUP2571VCIR1 Datasheet(HTML) 4 Page - Eutech Microelectronics Inc |
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4 / 14 page  EUP2571 DS2571 Ver1.1 May. 2007 4 Absolute Maximum Ratings Supply Voltage ,VIN ----------------------------------------------------------------- -0.3V to 6V LX,OUT ----------------------------------------------------------------------------- -0.3V to 30V The Other Pins ---------------------------------------------------------------------- -0.3V to 6V Power dissipation, PD@ TA=25°C SOT23-6 ------------------------------------------------------------------------------- 0.4W Package Thermal Resistance SOT23-6,θJA ------------------------------------------------------------------------- 250°C/W Maximum Junction Temperature --------------------------------------------------- 125°C Lead Temperature (Soldering, 10sec.) --------------------------------------------- 260°C Storage Temperature Range ------------------------------------------------------- -65°C to 150°C Operating Conditions Junction Temperature Range --------------------------------------------------- -40°C to 125°C Supply Voltage , VIN----------------------------------------------------------------- 2.6V to 5.5V Electrical Characteristics (VIN =3.6V, VOUT=12V, COUT=1µF, CIN=1µF, RSENSE=12Ω, TA=-40°C to 85°C. Unless otherwise noted. Typical values are at TA= 25°C) EUP2571 Symbol Parameter Conditions Min Typ Max. Unit Supply Voltage -- -- 6 V UVLO Under voltage Lock Out VIN rising or falling 2.2 2.4 2.6 V Maximum Output Voltage -- -- 26 V ICC1 Supply Current VCC=6V, Continuous Switching -- 0.8 1.5 mA ICC2 Quiescent Current VCC=6V, FB=1.3V, No Switching -- 115 250 µA ICC3 Shut Down current VCC=6V, VEN<0.4V -- 0.1 1 µA Oscillator Fosc Operation Frequency 0.8 1.1 1.3 MHz Dmax Maximum Duty Cycle 89 92 96 % Reference Voltage TA=25℃ 237 250 263 VFB Feedback Voltage TA=-40°C to 85°C 230 250 270 mV MOSFET Rds (on) On resistance of MOSFET -- 1.05 1.5 Ω ILX Current Limit 0.4 0.75 1.2 A Control and Protection VEN1 Shut Down Voltage 0.4 0.7 -- V VEN2 Enable Voltage -- 0.7 1.2 V IEN EN Pin Pull Low Current -- -- 0.1 µA Falling 24.5 25.7 26.5 OVP OVP Threshold Rising 26.1 27.3 28.1 V |
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