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LP6255 Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP6255 Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 10 page  LP6255-02 Feb.-2014 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 10 Preliminary Datasheet LP6255 High Efficiency Synchronous Boost Convertor General Description The LP6255 is a Synchronous current mode boost DC-DC converter with external N-channel MOSFET for large power output. Programmable high switching frequency allows wide application range and easy setting with a few capacitors or resistors. Its error amplifier is connected to an internal 1.31V precision reference voltage. Current mode control and external compensation network make it easy and flexible to stabilize the system. Order Information LP6255 □ □ □ F: Halogen Free and Pb Free Package Type QV: QFN-20 Applications Battery products Host OTG Audio power Electronic cigarette Pin Configurations 1 2 3 4 5 6 7 8 9 10 COMP FB SLP VREF GND EN NC MODE SS VREF OUT GND CS VIN NC BST GND 15 14 13 12 11 20 19 18 17 16 RT LDR LX HDR Features High efficiency with low RDS(ON) MOS Adaptive Dead time Control Optional Diode Emulation Mode Programmable Over Input current Protection Over Temperature Protection Programmable frequency switching 1.31V Reference voltage for setting output voltage Available in TQFN-20 3×3mm Marking Information Device Marking Package Shipping LP6255QVF LPS LP6255 YWX QFN-20 3K/REEL Marking indication: Y:Production year W:Production week X:Production batch. Typical Application Circuit CS VIN COMP LDR HDR VOUT FB MODE LP6255 MODE Control VIN RS L CBST CIN C1 CSS RT RCOMP CCOMP R2 R1 High side NMOS Low side NMOS VOUT COUT 66uF CHF C3/NC EN R3 Chip Enable R6 SLP |
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