Version 4 SHEET 1 2312 928 WIRE 432 -96 -128 -96 WIRE -128 -16 -128 -96 WIRE -48 -16 -128 -16 WIRE 544 -16 400 -16 WIRE 752 -16 544 -16 WIRE -128 0 -128 -16 WIRE 544 0 544 -16 WIRE 752 0 752 -16 WIRE -128 80 -128 64 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 752 272 544 272 WIRE 768 272 752 272 WIRE 864 272 848 272 WIRE 896 272 864 272 WIRE 992 272 896 272 WIRE 1088 272 992 272 WIRE 1184 272 1088 272 WIRE 544 288 544 272 WIRE 1088 288 1088 272 WIRE 1184 288 1184 272 WIRE 896 336 896 272 WIRE 992 336 992 272 WIRE -208 368 -256 368 WIRE -48 368 -144 368 WIRE 496 368 400 368 WIRE 1088 384 1088 352 WIRE 1184 384 1184 368 WIRE 544 400 544 384 WIRE -160 464 -256 464 WIRE -48 464 -96 464 WIRE 896 464 896 416 WIRE 896 464 400 464 WIRE 992 464 992 400 WIRE 992 464 896 464 WIRE 896 480 896 464 WIRE -240 560 -256 560 WIRE -48 560 -176 560 WIRE 448 560 400 560 WIRE 592 560 448 560 WIRE 752 560 752 272 WIRE 752 560 672 560 WIRE 448 576 448 560 WIRE 896 576 896 560 WIRE -48 656 -80 656 WIRE 448 656 448 640 WIRE 448 656 400 656 WIRE 864 656 864 272 WIRE 864 656 448 656 FLAG -80 656 0 FLAG 544 400 0 FLAG 1088 384 0 FLAG 1184 384 0 FLAG 896 576 0 FLAG 1184 272 OUT FLAG -128 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 752 288 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 1072 288 R0 WINDOW 39 24 92 Left 2 SYMATTR InstName C1 SYMATTR Value 660µ SYMBOL res 880 320 R0 SYMATTR InstName R1 SYMATTR Value 154K SYMBOL res 880 464 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 -144 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 cap 976 336 R0 SYMATTR InstName C6 SYMATTR Value 47p 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 1168 272 R0 SYMATTR InstName Rload SYMATTR Value .22 SYMBOL PowerProducts\\LTC3851A 176 320 R0 SYMATTR InstName U1 TEXT 952 664 Left 2 !.tran 2m startup