Version 4
SHEET 1 2312 928
WIRE 432 -96 -256 -96
WIRE -256 -16 -256 -96
WIRE -128 -16 -256 -16
WIRE -48 -16 -128 -16
WIRE 544 -16 400 -16
WIRE 752 -16 544 -16
WIRE -256 0 -256 -16
WIRE 544 0 544 -16
WIRE 752 0 752 -16
WIRE -256 80 -256 64
WIRE -128 80 -128 64
WIRE -48 80 -128 80
WIRE 496 80 400 80
WIRE 752 96 752 80
WIRE 432 176 432 -32
WIRE 432 176 400 176
WIRE 464 176 432 176
WIRE 544 176 544 96
WIRE 544 176 528 176
WIRE 544 272 544 176
WIRE 544 272 400 272
WIRE 704 272 544 272
WIRE 720 272 704 272
WIRE 816 272 800 272
WIRE 848 272 816 272
WIRE 976 272 848 272
WIRE 1072 272 976 272
WIRE 544 288 544 272
WIRE 976 288 976 272
WIRE 1072 288 1072 272
WIRE 848 336 848 272
WIRE -208 368 -256 368
WIRE -48 368 -144 368
WIRE 496 368 400 368
WIRE 976 384 976 352
WIRE 1072 384 1072 368
WIRE 544 400 544 384
WIRE -160 464 -256 464
WIRE -48 464 -96 464
WIRE 848 464 848 416
WIRE 848 464 400 464
WIRE 848 480 848 464
WIRE -240 560 -256 560
WIRE -48 560 -176 560
WIRE 448 560 400 560
WIRE 592 560 448 560
WIRE 704 560 704 272
WIRE 704 560 672 560
WIRE 448 576 448 560
WIRE 848 576 848 560
WIRE -48 656 -80 656
WIRE 448 656 448 640
WIRE 448 656 400 656
WIRE 816 656 816 272
WIRE 816 656 448 656
FLAG -80 656 0
FLAG 544 400 0
FLAG 976 384 0
FLAG 1072 384 0
FLAG 848 576 0
FLAG 1072 272 OUT
FLAG -256 80 0
FLAG -256 560 0
FLAG -256 368 0
FLAG 752 96 0
FLAG 752 -16 IN
FLAG -256 464 0
SYMBOL nmos 496 0 R0
SYMATTR InstName Q1
SYMATTR Value STD30NF06L
SYMBOL ind 704 288 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value .68µ
SYMATTR SpiceLine Rser=1.5m
SYMBOL cap 960 288 R0
WINDOW 39 24 92 Left 2
SYMATTR InstName C1
SYMATTR Value 660µ
SYMBOL res 832 320 R0
SYMATTR InstName R1
SYMATTR Value 154K
SYMBOL res 832 464 R0
SYMATTR InstName R2
SYMATTR Value 48.7K
SYMBOL cap 464 192 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL cap -272 0 R0
SYMATTR InstName C3
SYMATTR Value 4.7µ
SYMBOL cap -176 544 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 53 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 2200p
SYMATTR SpiceLine Rser=15K Cpar=330p
SYMBOL cap -144 352 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value .002µ
SYMBOL voltage 752 -16 R0
WINDOW 3 20 93 Left 2
SYMATTR Value 12
SYMATTR InstName V1
SYMBOL schottky 416 -96 R0
WINDOW 3 22 63 Left 2
SYMATTR Value CMDSH2-3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos 496 288 R0
SYMATTR InstName Q2
SYMATTR Value STD30NF06L
SYMBOL res 688 544 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 3.01K
SYMBOL cap 432 576 R0
WINDOW 3 41 35 Left 2
WINDOW 39 27 61 Left 2
SYMATTR Value .047µ
SYMATTR SpiceLine Rpar=30.1K
SYMATTR InstName C7
SYMBOL cap -96 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 53 32 VTop 2
SYMATTR InstName C8
SYMATTR Value .1µ
SYMATTR SpiceLine Rpar=82.5K
SYMBOL res 1056 272 R0
SYMATTR InstName Rload
SYMATTR Value .22
SYMBOL res -144 -32 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL PowerProducts\\LTC3851A-1 176 320 R0
SYMATTR InstName U1
TEXT 904 664 Left 2 !.tran 2m startup