?a??????a c w 1 1 1 7 c s y??????1?a 1. ?????? c w 111 7 c s ??e?? ?? ?12?y?? ?? ?1?? 3? 1.5 v 2. 5v 2 . 85v 3v 3. 3v 5v ? ?y??1? 3? a ??| ? ?3?3? ? ?e? / ??? / ???? ?? ???y? ? e???? ?? ?e??? smps ??????????3???????e??1?? ??????a ?3??????a 800m a y?????1??3? 1.5 2.5v 2.85v 3v 3.3v o 5v ?2??e? ???3??12?e? ?o?????ao??1???ae? ?a???ye? 2.85v 1??3???1?a?? scsi- ???? ?3a??-???????e???a ?o?1y 1y?? ae?? sot-223 t o -252 t o -220 sot-89 to - 2 6 sot3 2. 1|????y???? 2. 1 1|??? ??a 1? ?? 3 1 1 2 ?t?y?a???1ye?t1??? ?? ?-????t?yeo?aa 14 o? ?? 0510 5807123-5542 ??? 0510 5803016 ? 1 3 12 5 3
?a??????a cw1 1 17cs 2. 2 y???? y?? ? o? 1| ? y?? ? o? 1| ? 1 a d j / g n d ??? / ? 3 i n ?? 2 v o ?3? 3. ??e? 3. 1 ???t2?y 3y?e1?? t am b = 25 2? y ?? 3? ? o? ? ?t ?? ? ? ? ?? ????1 v cc -20 ~ 20 v y???a? t lead o?? 5 ?? 260 1|o? p d ?2??t? w 1??a t j -40 ~ 125 ???a? t stg -65 ~ 150 esd ??? s esd 2 kv 3. 2 ??e? 3y?e1?? t am b = 25 i o =10m a v in =v out +1 c l =3.3 f 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ??? ?2?? i ccq v in =4.25 ~ 6.5v 5 10 m a ???t? i l ( v in -v out )=5v , 1 0 0 0 1 2 0 0 m a ????1 v in -v out =2v 1 . 2 3 8 1 . 2 5 0 1 . 2 6 2 1 1 1 7 v ref i o =10 ~ 800m a v in -v out =1.4 ~ 10v 1 . 2 2 5 1 . 2 7 0 v ?3???1 v in = 4 . 8 5 v 1 . 4 8 5 1 . 5 0 0 1 . 5 1 5 1 1 17-1.5 i o =0~800m a, v in =4.25~10v 1 . 4 7 0 1 . 5 3 0 v in = 4 . 8 5 v 2 . 4 7 5 2 . 5 0 0 2 . 5 2 5 1 1 17-2.5 i o =0~800m a v in =4.25~10v 2 . 4 5 0 2 . 5 5 0 v in = 4 . 8 5 v 2 . 8 2 2 2 . 8 5 0 2 . 8 7 9 1 1 17-2.85 i o =0~800m a v in =4.25~10v 2 . 7 9 3 2 . 9 0 7 v in = 4 . 8 5 v 2 . 9 7 0 3 . 0 0 0 3 . 0 3 0 1 1 17-3.0 i o =0~800m a v in =4.75~10v 2 . 9 4 0 3 . 0 6 0 v in = 5 . 0 v 3 . 2 6 7 3 . 3 0 0 3 . 3 3 3 1 1 17-3.3 i o =0~800m a v in =4.75~10v 3 . 2 3 4 3 . 3 6 6 v in = 7 . 0 v 4 . 9 5 0 5 . 0 0 0 5 . 0 5 0 1 1 17-5.0 v o i o =0~800m a v in =6.50~12v 4 . 9 0 0 5 . 1 0 0 v e??a ? 2 3 12 5 3
?a??????a cw1 1 17cs ?? 1? ? ? 2? y ?? 3? ? o? 2a ? ? ?t ?e? ?e ?? ??? ??1???a 1 1 1 7 - 2 . 8 5 r egi i o =0m a v in =4.25~10v 1 6 1 1 1 7 - 3 . 0 0 r egi i o =0m a v in =4.50~12v 1 7 1 1 1 7 - 3 . 3 0 r egi i o =0m a v in =4.80~12v 1 7 1 1 1 7 - 5 . 0 0 r egi i o =0m a v in =6.50~15v 1 1 0 mv ?o?????a 1 1 1 7 - 2 . 8 5 r egl v in =4.25v , i o =10~800m a 1 1 0 1 1 1 7 - 3 . 0 0 r egl v in =4.50v i o =0~800m a 1 1 2 1 1 1 7 - 3 . 3 0 r egl v in =4.80v i o =0~800m a 1 1 2 1 1 1 7 - 5 . 0 0 r egl v in =6.50v i o =0~800m a 1 1 5 mv i o =100m a 1 . 0 0 1 . 1 0 i o =500m a 1 . 0 5 1 . 1 5 ?a????1 1 v i-o i o =800m a 1 . 1 0 1 . 2 0 v ?a????a 2 r t 25 30m s a?3? 0 . 0 1 0 . 1 % / w ??2??? r.r f rip = 120hz v rip = 1vp-p (v in -v out )=3v 6 0 d b ?3???1?a? ??e? 3 v 1 / t 0 . 0 5 % 3???e? v 2 /v t a =125 ,1000 e? 0 . 0 3 % ?3??? rms v no /v o 10hz f 10khz % of v out 0 . 0 0 3 % j ??n??? 1 5 /w 1 ? ????? 3?? ?a ? 3? ? ?1???? ??a ? 100 m v ?3?? ?1? ????1 ?2? 2 ?a ????a ?? ?a 1|o? ??? o??? ?? t ? ? 3???1? ? ?o??o? ?? ?1 ??????3???1??3ya 3 ? 3???1?a???y???a ?1?a???? ?3???1???a?????3y?? ?a? 4. 2a???a r1 r2 v v in out in adj out CW1117CS v ref i adj 50 a v =v 1+r2/r1 +i r2 out ref adj c2 c1 ? 3 3 12 5 3
?a??????a cw1 1 17cs 5. ?e???? 0 0 100 200 300 400 500 600 700 800 0.2 0.4 0.6 0.8 1.0 1.2 1.4 ?a????1 v -v in out ?a????1 v ?3?? ma ???2a?? tj=25 tj=125 tj=125 tj=25 tj=25 tj=125 tj=-55 0 5 10 15 20 0 1 2 3 4 ?? / ?3???12? v ?? / ?3???12? v ?e?1|? ?e?1|? ma 0 51 0 1 0 0.25 0.50 0.75 1.00 1.25 ?a? ?a? 5 a ?a? -50 25 100 125 0 -0.15 -0.10 0 0.05 0.10 ?3???1??2? % ?o?????a -25 50 75 -0.20 -0.05 i =800ma load 10 100 1k 10k 100k 0 10 20 30 40 50 60 70 80 90 100 ??2??? ?a hz ??2??? db v 3v ripple p-p ripple v 0.5v p-p v -v 3v in out (v -v ) v in out dropout c =200 f at f 60hz adj c =25 f at f 60hz adj i =0.5a out 0 0.2 0.4 0.6 0.8 0 10 20 30 40 50 60 70 80 90 100 ??2?????3?? ?3?? a ??2??? db c =25 f adj c =25 f adj v =5v out f =120hz f =20khz ripple ripple v 3v ripple p-p v 0.5v ripple p-p -2.0 -1.0 0 1.0 2.0 -50 -25 0 25 50 75 100 125 150 ?a? ?a???e? ?3???1?? % 0 -50 -25 0 25 50 75 100 125 150 ?a? ?????? ?????? a 10 20 30 40 50 60 70 80 90 100 ? 4 3 12 5 3
?a??????a cw1 1 17cs 6. |???a 6. 1 ?e??|???a r1 r2 v v in out in adj out CW1117CS v ref i adj 50 a v =v 1+r2/r1 +i r2 out ref adj c2 c1 6. 2 800ma |???a r1 v in in adj out CW1117CS c1 ?o?? 7. ae?3?? ? 5 3 12 5 3
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