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SP6641A Datasheet(PDF) 2 Page - Exar Corporation |
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SP6641A Datasheet(HTML) 2 Page - Exar Corporation |
2 / 13 page 2 Rev. 5/26/05, *Patent Pending SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23 © Copyright 2002 Sipex Corporation ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. ELECTRICAL SPECIFICATIONS VBATT = VSHDN = 1.3V, ILOAD = 0mA, -40°C <TA < +85°C, VOUT = +3.3V or +5.0V preset, typical values at 27°C unless otherwise noted. LX, VOUT, SHDN, VBATT to GND pin ....... -0.3 to 6.0V LX Current .......................................................... 1.5A Reverse VBATT Current ................................... 220mA Storage Temperature ........................ -65°C to 150°C Operating Temperature ..................... -40°C to +85°C Lead Temperature (Soldering, 10 sec) .......... 300 °C PARAMETER MIN TYP MAX UNITS CONDITIONS Input Voltage Operating Range, 0.5 4.5 V after startup VBATT Startup Voltage, VBATT 0.85 0.90 V RLOAD=3kΩ, TA =27°C 1.00 V RLOAD=3kΩ,-40°C <TA < +85°C Output Voltage, VOUT 3.16 3.30 3.44 V 3.3V VOUT preset 4.80 5.00 5.20 V 5.0V VOUT preset Quiescent Current into VOUT,10 15 µAVOUT=3.5V, 3.3V VOUT preset IQ(OUT) VOUT=5.5V, 5.0V VOUT preset Quiescent Current into VBATT, 250 500 nA VOUT=3.5V, 3.3V VOUT preset IQB VOUT=5.5V, 5.0V VOUT preset Shutdown Current into VOUT,1 500 nA VSHDN =0V ISHDN Shutdown Current into VBATT,20 100 nA VSHDN =0V ISHDN Inductor Current Limit 280 330 380 mA (SP6641A) Inductor Current Limit 850 1000 1150 mA (SP6641B) Output Current (SP6641AEK-3.3) 90 mA VBATT =1.3V 190 mA VBATT =2.6V Output Current (SP6641BEK-3.3) 200 mA VBATT =1.3V 500 mA VBATT =2.6V Output Current (SP6641AEK-5.0) 100 mA VBATT =2.0V 175 mA VBATT =3.3V Output Current (SP6641BEK-5.0) 275 mA VBATT =2.0V 500 mA VBATT =3.3V Minimum Off-Time Constant 1.50 V*µsTOFF ≥ KOFF / (VOUT – VIN) KOFF NMOS Switch Resistance 0.3 0.75 Ω Inmos=100mA SHDN Input Voltage Vil 20 % % of VBATT Vih 80 % % of VBATT SHDN Input Current 1 100 nA |
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