Version 4 SHEET 1 996 776 WIRE 304 -272 304 -288 WIRE 208 -208 -160 -208 WIRE -160 -192 -160 -208 WIRE 304 -192 304 -208 WIRE 304 -192 96 -192 WIRE 208 -176 208 -208 WIRE 304 -176 304 -192 WIRE 480 -128 432 -128 WIRE 528 -128 480 -128 WIRE 640 -128 608 -128 WIRE 736 -128 640 -128 WIRE 816 -128 736 -128 WIRE 896 -128 816 -128 WIRE -160 -112 -160 -128 WIRE 112 -112 -160 -112 WIRE 432 -112 432 -128 WIRE 432 -112 400 -112 WIRE 480 -112 480 -128 WIRE 816 -112 816 -128 WIRE 896 -112 896 -128 WIRE 480 -32 480 -48 WIRE -160 -16 -160 -32 WIRE -160 -16 -240 -16 WIRE -48 -16 -160 -16 WIRE 112 -16 -48 -16 WIRE 432 -16 400 -16 WIRE 736 -16 736 -128 WIRE 816 -16 816 -48 WIRE 896 -16 896 -32 WIRE -240 0 -240 -16 WIRE 432 0 432 -16 WIRE 480 0 432 0 WIRE 640 0 640 -128 WIRE 640 0 480 0 WIRE -48 80 -48 64 WIRE 112 80 -48 80 WIRE 640 80 640 64 WIRE 640 80 400 80 WIRE 736 80 736 64 WIRE 736 80 640 80 WIRE -240 96 -240 80 WIRE -48 96 -48 80 WIRE 480 96 480 0 WIRE 736 96 736 80 WIRE 640 176 400 176 WIRE -48 192 -48 176 WIRE 736 192 736 176 WIRE 480 272 480 160 WIRE 480 272 400 272 WIRE 528 272 480 272 WIRE 640 272 640 176 WIRE 640 272 608 272 WIRE 768 272 640 272 WIRE 640 288 640 272 WIRE 768 288 768 272 WIRE 640 368 400 368 WIRE 768 368 768 352 WIRE 640 384 640 368 WIRE 96 464 96 -192 WIRE 112 464 96 464 WIRE 416 464 400 464 WIRE 640 480 640 464 WIRE 448 560 400 560 WIRE 528 560 512 560 WIRE 208 640 208 624 WIRE 304 640 304 624 WIRE 208 736 208 720 WIRE 304 736 304 720 FLAG 416 464 0 FLAG -240 96 0 FLAG 304 -288 0 FLAG -48 192 0 FLAG 208 736 0 FLAG 304 736 0 FLAG 528 560 0 FLAG 480 -32 0 FLAG 736 192 0 FLAG 816 -16 0 FLAG 896 -16 0 FLAG 640 480 0 FLAG 768 368 0 FLAG -240 -16 IN FLAG 896 -128 OUT FLAG 768 272 CAP SYMBOL PowerProducts\\LTC3355 256 224 R0 SYMATTR InstName U1 SYMBOL voltage -240 -16 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap -176 -192 R0 SYMATTR InstName C1 SYMATTR Value 1µ SYMBOL cap 288 -272 R0 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL res -176 -128 R0 SYMATTR InstName R1 SYMATTR Value .091 SYMBOL res -64 -32 R0 SYMATTR InstName R2 SYMATTR Value 2.49Meg SYMBOL res -64 80 R0 SYMATTR InstName R3 SYMATTR Value 200K SYMBOL res 192 624 R0 WINDOW 3 23 84 Left 2 SYMATTR Value 60.4K SYMATTR InstName R4 SYMBOL res 288 624 R0 SYMATTR InstName R5 SYMATTR Value 200K SYMBOL cap 448 576 R270 WINDOW 39 -21 32 VBottom 2 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR SpiceLine Rser=154K SYMATTR InstName C3 SYMATTR Value 220p SYMBOL ind 512 -112 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 6.8µ SYMATTR SpiceLine Rser=20m SYMBOL schottky 464 -48 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value B520C SYMATTR Description Diode SYMATTR Type diode SYMBOL res 720 -32 R0 SYMATTR InstName R6 SYMATTR Value 402K SYMBOL res 720 80 R0 SYMATTR InstName R7 SYMATTR Value 100K SYMBOL cap 800 -112 R0 SYMATTR InstName C4 SYMATTR Value 47µ SYMATTR SpiceLine Rser=20m SYMBOL cap 624 0 R0 SYMATTR InstName C5 SYMATTR Value 4.7p SYMBOL res 880 -128 R0 SYMATTR InstName Rload SYMATTR Value 50 SYMBOL ind 512 288 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=20m SYMBOL res 624 272 R0 SYMATTR InstName R8 SYMATTR Value 665K SYMBOL res 624 368 R0 SYMATTR InstName R9 SYMATTR Value 332K SYMBOL cap 752 288 R0 SYMATTR InstName CSCAP SYMATTR Value 1m SYMATTR SpiceLine Rser=20m SYMBOL schottky 464 160 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value B520C SYMATTR Description Diode SYMATTR Type diode TEXT 640 576 Left 2 !.tran 5m startup