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LP3308 Datasheet(PDF) 3 Page - Lowpower Semiconductor inc |
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LP3308 Datasheet(HTML) 3 Page - Lowpower Semiconductor inc |
3 / 9 page Preliminary Datasheet LP3308 LP3308– 00 Version1.0 Datasheet Feb.-2010 www.lowpowersemi.com Page 3 of 9 Absolute Maximum Ratings Supply Input Voltage---------------------------------------------------------------------------------------------------−0.3V to 6.0V LX Input Voltage --------------------------------------------------------------------------------------------------------−0.3V to 33V The Other Pins ----------------------------------------------------------------------------------------------------------−0.3V to 5.5V Power Dissipation, PD @ TA = 25°C TSOT-23-5/6-----------------------------------------------------------------------0.455W Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C Operation Temperature Range --------------------------------------------------------------------------------- −40°C to 80°C Storage Temperature Range ---------------------------------------------------------------------------------------- −65°C to 150°C Electrical Characteristics Parameter Symbol Test Condition Min Typ. Max Units System Supply Input Operation voltage Range VDD 2.7 6 V Under Voltage Lock Out VDD 2.2 2.4 2.6 V Supply Current IDD FB=0.2V, Switch 430 550 uA Shut Down Current IDD VEN < 0.4V 0.1 1 uA Line Regulation VIN : 3.0~4.3V 2 % Oscillator Operation Frequency FOSC 1.4 MHz Maximum Duty Cycle 93 % Feedback Voltage LP3308 1.21 1.23 1.255 V MOSFET On Resistance of MOSFET RDS(ON) 0.7 Ω SW Current Limit ILM 1.4 A Protection Shut Down Voltage VEN 0.3 V Enable on Voltage VEN 1.0 V |
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