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BU33DV7NUX Arkusz danych(PDF) 2 Page - Rohm |
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BU33DV7NUX Arkusz danych(HTML) 2 Page - Rohm |
2 / 27 page Datasheet Datasheet . 2/24 BU33DV7NUX TSZ02201-0Q1Q0AH00110-1-2 © 2012 ROHM Co., Ltd. All rights reserved. 02.Aug.2012 Rev.001 TSZ22111・15・001 www.rohm.com ●Absolute maximum ratings(Ta=25℃) Parameter Symbol Ratings Unit Condition Maximum applied voltage Vmax 7.0 V Power dissipation1 Pd1 464 (Note1) mW 1layer(74.2x74.2mm)board (Surface heat radiation copper foil:6.28mm ) Power dissipation2 Pd2 1440 (Note2) mW 4layer(74.2x74.2mm)board (1,4layer heat radiation copper foil:6.28mm ) (2,3layer heat radiation copper foil:5500mm ) Operating temperature range Topr -40 to +85 oC Storage temperature range Tstr -55 to +125 oC *1 When it is used by more than Ta=25℃, it is reduced by 4.64mW/℃. *2 When it is used by more than Ta=25℃, it is reduced by 14.4mW/℃. ●Operating conditions Parameter Symbol Ratings Unit Condition Power supply voltage range VCC 1.8 to 5.5 V VIN terminal voltage ●Electrical characteristics [BU34DV7NUX] (Unless otherwise specified Ta=25℃、VIN=2.4V) Parameter Symbol Min. Typ. Max. Unit Condition Circuit current1(EN=0V) ICC1A - 1.6 4.5 µA EN=0V,MODE=0V Circuit current2(EN=0V) ICC2A - 0.3 1.5 µA EN=0V,MODE=VIN Circuit current1 no switching (EN=VIN,VOUT=5V) ICC1B - 140 250 µA EN=VIN,MODE=0V, VOUT=5.0V (not include SW) Circuit current2 no switching (EN=VIN,VOUT=5V) ICC2B - 25 50 µA EN=VIN,MODE=VIN, VOUT=5.0V (not include SW) Circuit current1(EN=VIN) ICC1C - 3.5 - mA EN=VIN,MODE=0V, Io=0mA Circuit current2(EN=VIN) ICC2C - 30 - µA EN=VIN,MODE=VIN, Io=0mA Oscillation frequency Fsw 0.5 0.6 0.7 MHz Output voltage range Vout 3.23 3.3 3.37 V Io=1mA Current limit Ilim 1.4 1.85 2.2 A DC - Current EN Input High VIH_EN 0.9 - - V EN Input Low VIL_EN - - 0.2 V MODE Input High VIH_MODE 0.9 - - V MODE Input Low VIL_MODE - - 0.2 V RSTBO output low voltage Vrstol - 0.1 0.2 V Ioi=100uA,MODE=0V RSTBO output high voltage Vrstoh VIN-0.2 VIN-0.1 - V Ioi=-100uA,MODE=0V RSTBC output resistance Rrstbc 450 600 750 kΩ SWN1 switch on resistance Rswn1 - 90 - mΩ VOUT=3.3V SWP1 switch on resistance Rswp1 - 160 - mΩ SWN2 switch on resistance Rswn2 - 1.0 - kΩ MODE=VIN,EN=0V SWP2 switch on resistance Rswp2 - 60 - Ω MODE=0V,EN=0V UVLO Release Threshold VuvloR 1.9 2.0 2.1 V VIN rising UVLO Detect Threshold VuvloD 1.75 1.8 1.85 V VIN falling UVLO Hysteresis Vuvlohys - 0.2 - V VIN Thru Vinthru 3.2 3.3 3.4 V VIN Thru Hysteresis Vinthruhys 20 50 80 mV 2 2 2 2 |
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