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| fp 6287 non - synchronous pwm b oost converter this datasheet contains new product information. feeling technology reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of this product. no rights under any patent accompany the sales of the product . website: http://www.feeling - tech.com.tw rev. 0. 6 2 1 / 10 general description the fp 6287 is a boost topology switching regulator for wide operating voltage applications. it s bu ilt - in 20 m power mo sfet make s this regulator highly power efficient . the internal compensation network minimizes external component co unts, and the non - inverting input of error amplifier connects to a 0.6v precision reference voltage. the fp 6287 ha s internal soft start and programmable over current protection set by external resist or . the fp 6287 is available in the small footprint sop - 8l (ep) package to fit in space - saving pcb layout for miscellaneous application fields. features ? wide supply voltage operating range: 2.4 to 5.5v ? precision feedback ref er ence voltage : 0.6v (2%) ? shutdown current : < 1a ? internal fixed pwm frequency : 5 5 0khz ? internal soft start function :7ms (ss) ? over c urrent protection function ( o cp) ? over voltage protection ? package: sop - 8l(ep) ? duty cycle: pwm/pfm switching control circuit (15%~90%) applications ? chargers ? lcd displays ? digital cameras ? handheld devices ? portable products typical application circuit s o p - 8 l 2 3 4 1 f p 6 2 8 7 f b v c c l x o c p g n d p g n d 7 6 5 e n g n d 8 l o a d v o u t v i n o n / o f f
fp 6287 this datasheet contains new product information. feeling technology reserves the rights to modify the product specification without notice. no liability is assumed as a result of the use of this product. no rights under any patent accompany the sales of the product . website: http://www.feeling - tech.com.tw rev. 0. 6 2 2 / 10 function block diagram pin descriptions so p - 8 l (ep) name no. i / o description en 1 i enable control (active high) fb 2 i error amplifier inverting input oc 3 i adjustable output current pro tection v cc 4 p ic power supply lx 5 o power switch output pgnd 6 p ic power ground pgnd 7 p ic power ground gnd 8 p ic ground ep 9 p exposed pad. must connect to lx p w m c o m p . e r r o r a m p . c o n t r o l a n d d r i v e r l o g i c o s c i l l a t o r v c c e n u v l o s h u t d o w n c i r c u i t r y f b 0 . 6 v 5 5 0 k h z s o f t s t a r t g n d v r a m p o c p o c 0 . 1 v l x p g n d 1 2 3 4 8 7 6 5 6 2 8 7 9 f a - 8 6 l e p t o p v i e w b o t t o m v i e w f p l x e n f b v c c g n d p g n d o c p g n d |
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