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| Preliminary Datasheet LP6202A Synchronous Boost DC/DC Regulator General Description The LP6202A is high efficiency synchronous, PWM step-up DC/DC converters optimized to provide a high efficiency solution to medium power system. the devices work under the input voltage between 0.9V and 4.4V with a 1.4 MHz fixed frequency switching. These features minimize overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Features Up to 94% efficiency Low voltage start-up:0.9V Shut-down current:<1uA Output voltage:2.5-4.3V(Up to 5V with schottky) Low switch on resistance RDS(ON),Internal switch:0.35 OHM High switch on current:1A 1.4MHz fixed frequency switching Available in SCT23-6 Package Ordering Information LP6202AA F: Pb-Free Package Type B6: SOT23-6 Pin Configurations Typical Application Circuit Vout_5V/600mA Vin(0.9V-5V) 4 4.7uH + 47uF 2 3 GND GND FB 6 R2 500K LP6202A SW EN OUT 5 1 R1 1.5M + Cout 100uF SOT23-6 Applications AlK. Battery products Marking Information Please see website. LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 1 of 6 Preliminary Functional Pin Description Datasheet LP6202A Function Block Diagram LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 2 of 6 Preliminary Absolute Maximum Ratings Datasheet LP6202A Supply Input Voltage---------------------------------------------------------------------------------------------------------------6V Power Dissipation, PD @ TA = 25C SOT23-6--------------------------------------------------------------------------------------------------------600mW Package Thermal Resistance SOT23-6, JA ---------------------------------------------------------------------------------------------------------------250C/W Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------------260C Storage Temperature Range --------------------------------------------------------------------------------- -65C to 150C ESD Susceptibility HBM (Human Body Mode) ----------------------------------------------------------------------------------------------------2kV MM(Machine-Mode)-----------------------------------------------------------------------------------------------------------200V Recommended Operating Conditions Supply Input Voltage-------------------------------------------------------------------------------------------------0.9V to 5.5V EN Input Voltage -------------------------------------------------------------------------------------------------------0V to 5.5V Operation Junction Temperature Range -------------------------------------------------------------------40C to 125C Operation Ambient TemperatureRange-----------------------------------------------------------------------40C to 85C LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 3 of 6 Preliminary Electrical Characteristics Datasheet LP6202A LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 4 of 6 Preliminary Typical Operating Characteristics Datasheet LP6202A LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 5 of 6 Preliminary Packaging Information Datasheet LP6202A LP6202A - Ver. 1.0 Datasheet Dec.-2007 Page 6 of 6 |
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