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SP7648 Datasheet(PDF) 2 Page - Sipex Corporation |
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SP7648 Datasheet(HTML) 2 Page - Sipex Corporation |
2 / 13 page 2 Mar16-06 Rev B SP7648 Ultra-low Quiescent Current, High Efficiency Boost Regulator © 2006 Sipex Corporation LX, Vo, VBATT, FLASHOUT, FB to GND pin ...................... -0.3 to 6.0V SHDN, FLASH ..................................................... -0.3V to VBATT+1.0V Vo, GND, LX Current ....................................................................... 2A Reverse VBATTCurrent .............................................................. 220mA Forward VBATTCurrent .............................................................. 500mA Storage Temperature .................................................. -65 °C to 150°C PaRaMeTeR Min TYP MaX UniTS cOnDiTiOnS Input Voltage Operating Range, VBATT 2.7 - 4.5 V After Startup Output Voltage Range, VOUT 2.7 - 5.5 V Under Voltage Lock-out/UVLO 0.5 0.61 0.7 V Output Voltage, VO 4.6 5.0 5.4 V Internal Feedback Divider Shutdown Current into VO, ISDO - 500 nA VSHDN = ZeroV Shutdown Current into VBATT, ISDB - 250 750 nA VSHDN = ZeroV, VBATT = 2.7V Efficiency 92 - % - VBATT = 2.7V, IOUT = 200mA, RLIM = 2k Inductor Peak Current Limit, IPK 650 800 000 mA RLIM = 2k , IPK = 1600/RLIM 600 mA RLIM = 1k , IPK = 1600/RLIM Output Current (Note 2) - 800 - mA - VBATT = 2.7V, RLIM =1k - 400 - mA - VBATT = 2.7V, RLIM =2k - 200 - mA - VBATT = 2.7V, RLIM = 4k Minimum Off-Time Constant KOFF 0.5 1.0 1.5 V*µs KOFF T OFF (VOUT - VBATT) Maximum On-Time Constant KON 2.0 3.5 5.0 V*µs KON T ON (VBATT) Enable Valid to Output Stable (Note 3) - 300 500 µ s - ILOAD = mA NMOS Switch Resistance - 0.30 0.6 INMOS = 00mA PMOS Switch Resistance - 0.30 0.6 IPMOS = 00mA FB Set Voltage, VFB 0.76 0.8 0.84 V External feedback Flash = 0 0.266 0.288 0.310 V External feedback Flash = 1 FB Input Current - 00 nA VFB =1.3V SHDN Input Voltage (Note 1) VIL - - 0.5 V VBATT = 2.7V VIH 2.0 - - VBATT = 2.7V SHDN Input Current - 00 nA LX Pin Leakage - - 3 µ A - FLASH Threshold V IL - - 0.4 V VIH 1.0 - - V eLecTRicaL SPeciFicaTiOnS VBATT =VSHDN = 3.6V, VFB=ZeroV, ILOAD = 0mA, TAMB= -40°C to +85°C, VOUT = 5.0V, typical values at 27°C unless otherwise noted. The denotes the specifications which apply over full operating temperature range -40ºC to +85°C, unless otherwise specified. Operating Temperature ................................................ -40°C to +85°C ESD Rating ........................................................................ 1.5kV HBM 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. aBSOLUTe MaXiMUM RaTingS note 1:SHDN must transition faster than 1V/100mS for proper operation. note 2:Output Current I = {VIN }XEfficiencyx{InductorPeakCurrent-InductorRippleCurrent} VOUT 2 note 3:Guaranteed by Design. |
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