Version 4 SHEET 1 2312 928 WIRE -128 -48 -192 -48 WIRE 144 -48 -128 -48 WIRE 368 -48 144 -48 WIRE -192 -32 -192 -48 WIRE 560 -32 48 -32 WIRE 768 -32 560 -32 WIRE 560 -16 560 -32 WIRE 768 -16 768 -32 WIRE 48 0 48 -32 WIRE 144 0 144 -48 WIRE -192 48 -192 32 WIRE -128 64 -128 -48 WIRE 512 64 336 64 WIRE 368 80 368 -48 WIRE 768 80 768 64 WIRE -128 160 -128 144 WIRE -48 160 -128 160 WIRE 368 160 368 144 WIRE 368 160 336 160 WIRE 496 160 368 160 WIRE 560 160 560 80 WIRE 560 256 560 160 WIRE 560 256 336 256 WIRE 624 256 560 256 WIRE 736 256 704 256 WIRE 752 256 736 256 WIRE 848 256 832 256 WIRE 896 256 848 256 WIRE 960 256 896 256 WIRE 1104 256 960 256 WIRE 560 272 560 256 WIRE 1104 272 1104 256 WIRE 960 288 960 256 WIRE -144 352 -160 352 WIRE -48 352 -64 352 WIRE 512 352 336 352 WIRE 960 368 960 352 WIRE 1104 368 1104 352 WIRE 560 384 560 368 WIRE 736 448 736 256 WIRE 736 448 336 448 WIRE 896 496 896 256 WIRE -128 544 -160 544 WIRE -48 544 -64 544 WIRE 848 544 848 256 WIRE 848 544 336 544 WIRE -224 640 -240 640 WIRE -48 640 -160 640 WIRE 896 640 896 576 WIRE 896 640 336 640 WIRE 896 656 896 640 WIRE 64 720 64 704 WIRE 224 720 224 704 WIRE 896 752 896 736 FLAG 560 384 0 FLAG 960 368 0 FLAG 1104 368 0 FLAG 896 752 0 FLAG 1104 256 OUT FLAG -192 48 0 FLAG -240 640 0 FLAG -160 544 0 FLAG 768 80 0 FLAG 768 -32 IN FLAG 64 720 0 FLAG 224 720 0 FLAG -160 352 0 SYMBOL nmos 512 -16 R0 SYMATTR InstName Q1 SYMATTR Value RJK0305DPB SYMBOL ind 608 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 10µ SYMATTR SpiceLine Rser=1.5m SYMBOL cap 944 288 R0 WINDOW 39 29 69 Left 2 WINDOW 3 37 34 Left 2 SYMATTR SpiceLine Rser=5m SYMATTR Value 150µ SYMATTR InstName C1 SYMBOL res 880 480 R0 SYMATTR InstName R1 SYMATTR Value 100K SYMBOL res 880 640 R0 SYMATTR InstName R2 SYMATTR Value 6.98K SYMBOL cap 496 176 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL cap -208 -32 R0 SYMATTR InstName C3 SYMATTR Value 2.2µ SYMBOL cap -160 624 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 4700p SYMATTR SpiceLine Rser=15.4K Cpar=47p SYMBOL cap -64 528 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value .01µ SYMBOL voltage 768 -32 R0 WINDOW 3 20 93 Left 2 SYMATTR Value 24 SYMATTR InstName V1 SYMBOL schottky 352 80 R0 WINDOW 3 20 64 Left 2 WINDOW 0 21 2 Left 2 SYMATTR Value CMDSH2-3 SYMATTR InstName D1 SYMATTR Description Diode SYMATTR Type diode SYMBOL nmos 512 272 R0 SYMATTR InstName Q2 SYMATTR Value RJK0301DPB SYMBOL res 1088 256 R0 SYMATTR InstName Rload SYMATTR Value 1.2 SYMBOL res 736 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 4m SYMBOL res -48 336 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 60.4K SYMBOL PowerProducts\\LTC3807 144 352 R0 SYMATTR InstName U1 SYMBOL res -144 48 R0 WINDOW 3 24 85 Left 2 SYMATTR Value 100K SYMATTR InstName R5 TEXT 1008 664 Left 2 !.tran 1m startup