Version 4
SHEET 1 2332 1000
WIRE 336 -384 336 -400
WIRE -576 -304 -688 -304
WIRE 144 -304 -576 -304
WIRE 976 -304 144 -304
WIRE -688 -288 -688 -304
WIRE 240 -288 -208 -288
WIRE 560 -288 240 -288
WIRE 784 -288 560 -288
WIRE 144 -272 144 -304
WIRE 240 -272 240 -288
WIRE 336 -272 336 -320
WIRE 432 -272 432 -400
WIRE 784 -256 784 -288
WIRE -48 -208 -64 -208
WIRE 544 -208 528 -208
WIRE -688 -192 -688 -208
WIRE 784 -144 784 -176
WIRE -208 -112 -208 -288
WIRE -144 -112 -208 -112
WIRE -48 -112 -64 -112
WIRE -480 -96 -752 -96
WIRE -368 -96 -416 -96
WIRE -304 -96 -368 -96
WIRE -208 -96 -208 -112
WIRE -208 -96 -240 -96
WIRE 560 -96 560 -288
WIRE 640 -96 560 -96
WIRE 768 -96 704 -96
WIRE 816 -96 768 -96
WIRE 1152 -96 880 -96
WIRE -576 -64 -576 -304
WIRE 976 -64 976 -304
WIRE -368 -48 -368 -96
WIRE 768 -48 768 -96
WIRE -144 -16 -160 -16
WIRE -48 -16 -64 -16
WIRE 560 -16 560 -96
WIRE 560 -16 528 -16
WIRE -496 16 -528 16
WIRE -208 16 -208 -96
WIRE -208 16 -240 16
WIRE 560 16 560 -16
WIRE 640 16 560 16
WIRE 928 16 896 16
WIRE -864 96 -896 96
WIRE -752 96 -752 -96
WIRE -752 96 -784 96
WIRE -576 96 -576 32
WIRE -576 96 -752 96
WIRE -496 96 -576 96
WIRE -208 96 -208 16
WIRE -208 96 -240 96
WIRE 560 96 560 16
WIRE 640 96 560 96
WIRE 976 96 976 32
WIRE 976 96 896 96
WIRE 1152 96 1152 -96
WIRE 1152 96 976 96
WIRE 1184 96 1152 96
WIRE 1280 96 1264 96
WIRE 1328 96 1280 96
WIRE 1424 96 1328 96
WIRE 1520 96 1424 96
WIRE 1520 112 1520 96
WIRE 1328 128 1328 96
WIRE 1424 128 1424 96
WIRE -496 176 -528 176
WIRE -48 176 -240 176
WIRE 640 176 528 176
WIRE 928 176 896 176
WIRE 1328 208 1328 192
WIRE 1424 208 1424 192
WIRE 1520 208 1520 192
WIRE -576 224 -576 192
WIRE 976 224 976 192
WIRE -368 256 -368 240
WIRE 768 256 768 240
WIRE -752 272 -752 96
WIRE -688 272 -752 272
WIRE -208 272 -608 272
WIRE -48 272 -208 272
WIRE 608 272 528 272
WIRE 1008 272 608 272
WIRE 1152 272 1152 96
WIRE 1152 272 1088 272
WIRE -208 288 -208 272
WIRE 608 288 608 272
WIRE -896 368 -896 96
WIRE -208 368 -208 352
WIRE -208 368 -896 368
WIRE -48 368 -208 368
WIRE 608 368 608 352
WIRE 608 368 528 368
WIRE 1280 368 1280 96
WIRE 1280 368 608 368
WIRE -48 464 -240 464
WIRE 560 464 560 96
WIRE 560 464 528 464
WIRE -240 560 -240 464
WIRE -192 560 -240 560
WIRE -80 560 -128 560
WIRE -48 560 -80 560
WIRE 560 560 528 560
WIRE -320 640 -320 608
WIRE -48 656 -64 656
WIRE 544 656 528 656
WIRE 576 656 544 656
WIRE 656 656 640 656
WIRE -320 752 -320 720
WIRE -240 752 -240 560
WIRE -240 752 -320 752
WIRE -320 784 -320 752
WIRE -240 784 -240 752
WIRE 48 832 48 816
WIRE 144 832 144 816
WIRE 240 832 240 816
WIRE 144 928 144 912
WIRE -64 944 -64 656
WIRE 544 944 544 656
WIRE 544 944 -64 944
WIRE -80 960 -80 560
WIRE 560 960 560 560
WIRE 560 960 -80 960
WIRE -320 976 -320 864
WIRE -240 976 -240 848
WIRE -240 976 -320 976
WIRE 432 976 432 816
WIRE 432 976 -240 976
WIRE -896 992 -896 368
WIRE 336 992 336 816
WIRE 336 992 -896 992
WIRE 1280 992 1280 368
WIRE 1280 992 336 992
FLAG 48 832 0
FLAG -688 -192 0
FLAG 784 -144 0
FLAG 336 -400 0
FLAG 432 -400 0
FLAG 144 928 0
FLAG 768 256 0
FLAG 976 224 0
FLAG -368 256 0
FLAG -576 224 0
FLAG -160 -16 0
FLAG 1328 208 0
FLAG 1424 208 0
FLAG 1520 208 0
FLAG 1520 96 OUT
FLAG -688 -304 IN
FLAG 240 832 0
FLAG -320 608 0
FLAG 656 656 0
SYMBOL voltage -688 -304 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 784 -272 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL cap 320 -384 R0
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL res 128 928 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 28.7K
SYMBOL res -160 -96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL PowerProducts\\LTC4449 768 96 R0
SYMATTR InstName U2
SYMBOL nmos 928 -64 R0
SYMATTR InstName Q1
SYMATTR Value RJK0305DPB
SYMBOL nmos 928 96 R0
SYMATTR InstName Q2
SYMATTR Value RJK0301DPB
SYMBOL ind 1168 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value .47µ
SYMATTR SpiceLine Rser=.7m Rpar=5K
SYMBOL res 1104 256 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 2.87K
SYMBOL cap 592 288 R0
SYMATTR InstName C2
SYMATTR Value .22µ
SYMBOL PowerProducts\\LTC4449 -368 96 M0
SYMATTR InstName U3
SYMBOL nmos -528 -64 M0
SYMATTR InstName Q3
SYMATTR Value RJK0305DPB
SYMBOL nmos -528 96 M0
SYMATTR InstName Q4
SYMATTR Value RJK0301DPB
SYMBOL ind -768 112 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value .47µ
SYMATTR SpiceLine Rser=.7m Rpar=5K
SYMBOL res -704 256 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 2.87K
SYMBOL cap -224 288 R0
SYMATTR InstName C3
SYMATTR Value .22µ
SYMBOL res -160 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 59K
SYMBOL cap 1312 128 R0
WINDOW 123 29 64 Left 2
WINDOW 3 41 38 Left 2
SYMATTR Value2 X6
SYMATTR Value 330µ
SYMATTR InstName C4
SYMATTR SpiceLine Rser=10m
SYMBOL cap 1408 128 R0
WINDOW 123 28 61 Left 2
WINDOW 3 41 35 Left 2
SYMATTR Value2 X4
SYMATTR Value 100µ
SYMATTR InstName C5
SYMATTR SpiceLine Rser=3m
SYMBOL res -336 768 R0
SYMATTR InstName R6
SYMATTR Value 20K
SYMBOL res -336 624 R0
SYMATTR InstName R7
SYMATTR Value 20K
SYMBOL cap -128 544 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 53 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 1000p
SYMATTR SpiceLine Rser=13K Cpar=220p
SYMBOL schottky -240 -112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -416 -112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value .22µ
SYMBOL schottky 640 -112 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 816 -112 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .22µ
SYMBOL cap 576 672 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C9
SYMATTR Value .005µ
SYMBOL cap -256 784 R0
WINDOW 39 27 66 Left 2
WINDOW 3 39 39 Left 2
SYMATTR SpiceLine Rser=221
SYMATTR Value 1000p
SYMATTR InstName C10
SYMBOL res 1504 96 R0
SYMATTR InstName Rload
SYMATTR Value 20m
SYMBOL PowerProducts\\LTC3861-1 240 272 R0
SYMATTR InstName U1
TEXT 1320 704 Left 2 !.tran 1m startup