Version 4 SHEET 1 1008 792 WIRE -80 -336 -160 -336 WIRE -32 -336 -80 -336 WIRE 64 -336 -32 -336 WIRE 176 -336 64 -336 WIRE 432 -336 240 -336 WIRE 496 -336 432 -336 WIRE 656 -336 576 -336 WIRE 704 -336 656 -336 WIRE -160 -320 -160 -336 WIRE 704 -320 704 -336 WIRE 704 -240 704 -256 WIRE -160 -224 -160 -240 WIRE -32 -224 -32 -336 WIRE 64 -224 64 -336 WIRE 80 -224 64 -224 WIRE 432 -224 432 -336 WIRE 432 -224 400 -224 WIRE 432 -208 432 -224 WIRE -32 -128 -32 -144 WIRE 64 -128 -32 -128 WIRE 80 -128 64 -128 WIRE 432 -128 432 -144 WIRE 432 -128 400 -128 WIRE 496 -128 432 -128 WIRE 656 -128 656 -336 WIRE 656 -128 576 -128 WIRE -32 -112 -32 -128 WIRE 64 -32 64 -128 WIRE 80 -32 64 -32 WIRE 432 -32 400 -32 WIRE 448 -32 432 -32 WIRE 576 -32 512 -32 WIRE -32 -16 -32 -32 WIRE 656 -16 656 -128 WIRE -80 64 -80 -336 WIRE -32 64 -80 64 WIRE 80 64 48 64 WIRE 608 64 400 64 WIRE 432 80 432 -32 WIRE 576 160 576 -32 WIRE 576 160 400 160 WIRE 656 160 656 80 WIRE 656 160 576 160 WIRE 752 160 656 160 WIRE 752 192 752 160 WIRE -80 256 -80 64 WIRE -32 256 -80 256 WIRE 80 256 48 256 WIRE 432 256 432 144 WIRE 432 256 400 256 WIRE 448 256 432 256 WIRE 528 256 512 256 WIRE 656 272 656 160 WIRE -32 352 -48 352 WIRE 80 352 32 352 WIRE 608 352 400 352 WIRE 656 384 656 368 WIRE -32 448 -48 448 WIRE 80 448 32 448 WIRE 480 448 400 448 WIRE 752 448 752 272 WIRE 752 448 560 448 WIRE 80 544 64 544 WIRE 480 544 400 544 WIRE 752 544 752 528 WIRE 752 544 560 544 WIRE 80 640 64 640 WIRE 480 640 400 640 WIRE 640 640 480 640 WIRE 752 640 752 544 WIRE 752 640 640 640 WIRE 480 656 480 640 WIRE 640 656 640 640 WIRE 240 720 240 704 WIRE 480 736 480 720 WIRE 640 736 640 720 WIRE 64 752 64 640 WIRE 432 752 432 256 WIRE 432 752 64 752 FLAG 240 720 0 FLAG -160 -224 0 FLAG -32 -16 0 FLAG -48 352 0 FLAG -48 448 0 FLAG 480 736 0 FLAG 640 736 0 FLAG 656 384 0 FLAG 528 256 0 FLAG -160 -336 IN FLAG 752 640 BATT FLAG 704 -240 0 FLAG 64 544 0 SYMBOL voltage -160 -336 R0 SYMATTR InstName V1 SYMATTR Value 16 SYMBOL schottky 176 -320 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value B530C SYMATTR Description Diode SYMATTR Type diode SYMBOL res -48 -240 R0 SYMATTR InstName R1 SYMATTR Value 14.3K SYMBOL res -48 -128 R0 SYMATTR InstName R2 SYMATTR Value 1.5K SYMBOL cap 32 336 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMATTR SpiceLine Rser=6.04K SYMBOL cap 32 432 R90 WINDOW 0 3 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 53 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 4.7n SYMATTR SpiceLine Rpar=26.7K SYMBOL cap 464 656 R0 SYMATTR InstName C3 SYMATTR Value 22µ SYMATTR SpiceLine V=25 Irms=0 Rser=0.003 Lser=0 mfg="TDK" pn="C575OX5RIE226M" type="X5R" SYMBOL cap 416 -208 R0 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL res 592 -144 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 5.1K SYMBOL res 480 -320 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 33m SYMBOL nmos 608 -16 R0 SYMATTR InstName Q1 SYMATTR Value BSC019NE2LSI SYMBOL nmos 608 272 R0 WINDOW 3 23 107 Right 2 SYMATTR InstName Q2 SYMATTR Value BSC019NE2LSI SYMBOL schottky 416 144 M180 WINDOW 0 24 64 Left 2 WINDOW 3 17 8 Left 2 SYMATTR InstName D2 SYMATTR Value CMDSH2-3 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 448 -16 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C5 SYMATTR Value .1µ SYMBOL cap 448 272 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C6 SYMATTR Value 2µ SYMBOL ind 736 176 R0 SYMATTR InstName L1 SYMATTR Value 6.8µ SYMATTR SpiceLine Rser=10m SYMBOL res 736 432 R0 SYMATTR InstName R5 SYMATTR Value 33m SYMBOL res 576 432 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 3.01K SYMBOL res 576 528 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 3.01K SYMBOL res -48 80 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R8 SYMATTR Value 500K SYMBOL res -48 272 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R9 SYMATTR Value 500K SYMBOL cap 688 -320 R0 SYMATTR InstName C7 SYMATTR Value 22µ SYMATTR SpiceLine V=25 Irms=0 Rser=0.003 Lser=0 mfg="TDK" pn="C575OX5RIE226M" type="X5R" SYMBOL PowerProducts\\LTC4009-2 240 208 R0 SYMATTR InstName U1 SYMBOL cap 624 656 R0 SYMATTR InstName BATT SYMATTR Value 1000µ SYMATTR SpiceLine V=25 Irms=0 Rser=0.003 Lser=0 mfg="TDK" pn="C575OX5RIE226M" type="X5R" TEXT 768 728 Left 2 !.tran 10m startup