Version 4
SHEET 1 1348 920
WIRE 208 -448 208 -464
WIRE -592 -368 -704 -368
WIRE 112 -368 -592 -368
WIRE 832 -368 112 -368
WIRE -704 -352 -704 -368
WIRE 208 -352 208 -384
WIRE 208 -352 -400 -352
WIRE 704 -352 208 -352
WIRE -592 -336 -592 -368
WIRE 832 -336 832 -368
WIRE 112 -320 112 -368
WIRE 208 -320 208 -352
WIRE -704 -256 -704 -272
WIRE -256 -256 -544 -256
WIRE 784 -256 656 -256
WIRE -400 -240 -400 -352
WIRE 704 -240 704 -352
WIRE -400 -160 -400 -176
WIRE -256 -160 -400 -160
WIRE 704 -160 704 -176
WIRE 704 -160 656 -160
WIRE -400 -144 -400 -160
WIRE 704 -144 704 -160
WIRE -864 -64 -976 -64
WIRE -768 -64 -864 -64
WIRE -752 -64 -768 -64
WIRE -656 -64 -672 -64
WIRE -592 -64 -592 -240
WIRE -592 -64 -656 -64
WIRE -400 -64 -400 -80
WIRE -400 -64 -592 -64
WIRE -256 -64 -400 -64
WIRE 704 -64 704 -80
WIRE 704 -64 656 -64
WIRE 832 -64 832 -240
WIRE 832 -64 704 -64
WIRE 864 -64 832 -64
WIRE 896 -64 864 -64
WIRE 1024 -64 976 -64
WIRE 1056 -64 1024 -64
WIRE 1152 -64 1056 -64
WIRE -976 -48 -976 -64
WIRE -592 -48 -592 -64
WIRE 832 -48 832 -64
WIRE 1056 -48 1056 -64
WIRE 1152 -48 1152 -64
WIRE -864 -32 -864 -64
WIRE -256 32 -544 32
WIRE 784 32 656 32
WIRE -976 48 -976 32
WIRE -864 48 -864 32
WIRE 1056 48 1056 16
WIRE 1152 48 1152 32
WIRE -592 64 -592 48
WIRE 832 64 832 48
WIRE -656 128 -656 -64
WIRE -624 128 -656 128
WIRE -496 128 -544 128
WIRE -256 128 -496 128
WIRE 704 128 656 128
WIRE 768 128 704 128
WIRE 864 128 864 -64
WIRE 864 128 848 128
WIRE -496 144 -496 128
WIRE 704 144 704 128
WIRE -768 224 -768 -64
WIRE -496 224 -496 208
WIRE -496 224 -768 224
WIRE -256 224 -496 224
WIRE 704 224 704 208
WIRE 704 224 656 224
WIRE 1024 224 1024 -64
WIRE 1024 224 704 224
WIRE -768 240 -768 224
WIRE -256 320 -768 320
WIRE 928 320 656 320
WIRE 1040 320 928 320
WIRE 1136 320 1120 320
WIRE -768 336 -768 320
WIRE -448 416 -464 416
WIRE -256 416 -384 416
WIRE 704 416 656 416
WIRE 784 416 768 416
WIRE -768 432 -768 416
WIRE 928 480 928 320
WIRE -400 512 -432 512
WIRE -256 512 -336 512
WIRE 704 512 656 512
WIRE 800 512 768 512
WIRE -464 608 -480 608
WIRE -368 608 -384 608
WIRE -352 608 -368 608
WIRE -256 608 -272 608
WIRE 688 608 656 608
WIRE 784 608 768 608
WIRE 800 608 784 608
WIRE 896 608 880 608
WIRE -464 704 -480 704
WIRE -368 704 -368 608
WIRE -368 704 -384 704
WIRE 784 704 784 608
WIRE 800 704 784 704
WIRE 896 704 880 704
WIRE -128 784 -128 768
WIRE -32 784 -32 768
WIRE 160 784 160 768
WIRE 256 784 256 768
WIRE 544 784 544 768
WIRE 448 816 448 768
WIRE 928 816 928 560
WIRE 928 816 448 816
WIRE 352 832 352 768
WIRE 1024 832 1024 224
WIRE 1024 832 352 832
WIRE -32 880 -32 864
FLAG 832 64 0
FLAG 208 -464 0
FLAG 1056 48 0
FLAG 1152 48 0
FLAG 784 416 0
FLAG 800 512 0
FLAG 896 608 0
FLAG 896 704 0
FLAG 544 784 0
FLAG -128 784 0
FLAG 160 784 0
FLAG -32 880 0
FLAG 256 784 0
FLAG -592 64 0
FLAG -864 48 0
FLAG -976 48 0
FLAG -464 416 0
FLAG -432 512 0
FLAG -480 608 0
FLAG -480 704 0
FLAG 1136 320 0
FLAG -768 432 0
FLAG -704 -368 IN
FLAG -976 -64 OUT1
FLAG 1152 -64 OUT2
FLAG -704 -256 0
SYMBOL PowerProducts\\LTC3855 208 224 R0
SYMATTR InstName U1
SYMBOL nmos 784 -336 R0
WINDOW 0 53 11 Left 2
WINDOW 3 59 104 Left 2
SYMATTR InstName Q1
SYMATTR Value RJK0305DPB
SYMBOL nmos 784 -48 R0
WINDOW 0 0 29 Right 2
WINDOW 3 25 102 Right 2
SYMATTR InstName Q2
SYMATTR Value RJK0301DPB
SYMBOL ind 880 -48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value .68µ
SYMATTR SpiceLine Rser=2.3m Rpar=5K
SYMBOL cap 192 -448 R0
SYMATTR InstName C1
SYMATTR Value 4.7µ
SYMBOL cap 688 -144 R0
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL schottky 688 -240 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1040 -48 R0
SYMATTR InstName C3
SYMATTR Value 760µ
SYMATTR SpiceLine Rser=2m
SYMBOL res 864 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 3.01K
SYMBOL cap 704 432 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
WINDOW 39 -20 93 VBottom 2
SYMATTR InstName C5
SYMATTR Value 1000p
SYMATTR SpiceLine Rser=15K Cpar=100p
SYMBOL cap 704 528 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C6
SYMATTR Value .001µ
SYMBOL res 672 624 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 20K
SYMBOL res 784 624 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL res 784 720 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 49.9K
SYMBOL res -48 768 R0
SYMATTR InstName R6
SYMATTR Value 86.6K
SYMBOL nmos -544 -336 M0
WINDOW 0 -1 18 Right 2
WINDOW 3 44 105 Right 2
SYMATTR InstName Q3
SYMATTR Value RJK0305DPB
SYMBOL nmos -544 -48 M0
WINDOW 0 3 20 Right 2
WINDOW 3 21 105 Right 2
SYMATTR InstName Q4
SYMATTR Value RJK0301DPB
SYMBOL ind -656 -48 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value .68µ
SYMATTR SpiceLine Rser=2.3m Rpar=5K
SYMBOL cap -416 -144 R0
SYMATTR InstName C7
SYMATTR Value .1µ
SYMBOL schottky -416 -240 R0
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -880 -32 R0
SYMATTR InstName C8
SYMATTR Value 760µ
SYMATTR SpiceLine Rser=2m
SYMBOL cap -512 144 R0
WINDOW 3 42 33 Left 2
WINDOW 39 26 56 Left 2
SYMATTR Value .1µ
SYMATTR SpiceLine Rpar=24.9K
SYMATTR InstName C9
SYMBOL res -640 112 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 3.01K
SYMBOL cap -384 432 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 2 32 VBottom 2
WINDOW 39 -19 32 VBottom 2
SYMATTR InstName C10
SYMATTR Value 1000p
SYMATTR SpiceLine Rser=20K Cpar=100p
SYMBOL cap -336 528 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C11
SYMATTR Value .001µ
SYMBOL res -256 624 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 20K
SYMBOL res -368 624 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R10
SYMATTR Value 100K
SYMBOL res -368 720 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R11
SYMATTR Value 49.9K
SYMBOL res 912 464 R0
SYMATTR InstName R12
SYMATTR Value 40.2K
SYMBOL res 1136 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 20K
SYMBOL res -784 320 R0
SYMATTR InstName R14
SYMATTR Value 20K
SYMBOL res -784 224 R0
SYMATTR InstName R15
SYMATTR Value 63.4K
SYMBOL voltage -704 -368 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -992 -64 R0
SYMATTR InstName Rload1
SYMATTR Value .166
SYMBOL res 1136 -64 R0
SYMATTR InstName Rload2
SYMATTR Value .12
SYMBOL cap 688 144 R0
WINDOW 3 39 34 Left 2
WINDOW 39 24 63 Left 2
SYMATTR Value .1µ
SYMATTR SpiceLine Rpar=24.9K
SYMATTR InstName C4
TEXT 1096 584 Left 2 !.tran 750u startup