Version 4 SHEET 1 1536 680 WIRE -176 -128 -272 -128 WIRE 208 -128 -176 -128 WIRE 608 -128 208 -128 WIRE 832 -128 800 -128 WIRE 944 -128 896 -128 WIRE 1008 -128 944 -128 WIRE 1120 -128 1088 -128 WIRE 1168 -128 1120 -128 WIRE 1280 -128 1168 -128 WIRE -272 -112 -272 -128 WIRE -176 -112 -176 -128 WIRE 608 -112 608 -128 WIRE 688 -112 608 -112 WIRE 800 -112 800 -128 WIRE 800 -112 736 -112 WIRE 944 -112 944 -128 WIRE 1168 -112 1168 -128 WIRE 1280 -112 1280 -128 WIRE 688 -96 688 -112 WIRE 736 -96 736 -112 WIRE 208 -80 208 -128 WIRE -272 -16 -272 -32 WIRE -176 -16 -176 -32 WIRE 48 -16 -176 -16 WIRE 416 -16 368 -16 WIRE 528 -16 416 -16 WIRE 944 -16 944 -48 WIRE 1168 -16 1168 -48 WIRE 1280 -16 1280 -32 WIRE -176 0 -176 -16 WIRE 528 0 528 -16 WIRE 688 0 688 -16 WIRE 688 0 608 0 WIRE 736 0 736 -16 WIRE 800 0 736 0 WIRE 800 16 800 0 WIRE 608 32 608 0 WIRE 688 32 608 32 WIRE 688 48 688 32 WIRE 48 80 -176 80 WIRE 416 80 416 64 WIRE 416 80 368 80 WIRE 528 80 528 64 WIRE -176 96 -176 80 WIRE 608 96 608 32 WIRE 688 128 688 112 WIRE -48 176 -64 176 WIRE 48 176 16 176 WIRE 560 176 368 176 WIRE -176 192 -176 176 WIRE -48 272 -64 272 WIRE 48 272 32 272 WIRE 608 272 608 192 WIRE 608 272 368 272 WIRE 608 288 608 272 WIRE 1120 320 1120 -128 WIRE -48 368 -64 368 WIRE 48 368 16 368 WIRE 432 368 368 368 WIRE 608 384 608 368 WIRE 432 432 432 368 WIRE 1120 432 1120 400 WIRE 1120 432 432 432 WIRE 1120 448 1120 432 WIRE -128 464 -176 464 WIRE -16 464 -48 464 WIRE 48 464 -16 464 WIRE 400 464 368 464 WIRE -176 480 -176 464 WIRE -16 480 -16 464 WIRE 208 544 208 528 WIRE 1120 544 1120 528 WIRE -176 560 -176 544 WIRE -16 560 -16 544 FLAG 208 544 0 FLAG -176 192 0 FLAG -64 176 0 FLAG -64 272 0 FLAG -64 368 0 FLAG -272 -16 0 FLAG 528 80 0 FLAG 608 384 0 FLAG 688 128 0 FLAG 944 -16 0 FLAG 1168 -16 0 FLAG 1280 -16 0 FLAG -272 -128 IN FLAG 1280 -128 OUT FLAG 800 16 0 FLAG -176 560 0 FLAG 1120 544 0 FLAG -16 560 0 SYMBOL PowerProducts\\LT8310 208 224 R0 SYMATTR InstName U1 SYMBOL voltage -272 -128 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 36 SYMBOL res -192 -128 R0 SYMATTR InstName R1 SYMATTR Value 280K SYMBOL res -192 -16 R0 SYMATTR InstName R2 SYMATTR Value 30.9K SYMBOL res -192 80 R0 SYMATTR InstName R3 SYMATTR Value 6.65K SYMBOL cap 16 160 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 6.8n SYMATTR SpiceLine Rser=50m SYMBOL res 48 256 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 40.2K SYMBOL cap 16 352 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 100n SYMBOL res 400 -32 R0 SYMATTR InstName R5 SYMATTR Value 105K SYMBOL cap 512 0 R0 SYMATTR InstName C3 SYMATTR Value 4.7µ SYMBOL ind2 672 -112 R0 WINDOW 3 4 71 Right 2 WINDOW 0 2 35 Right 2 SYMATTR Value 420µ SYMATTR InstName L1 SYMATTR Type ind SYMATTR SpiceLine Rser=65mm Rpar=5K SYMBOL ind2 752 -112 M0 WINDOW 3 1 82 Right 2 WINDOW 0 4 33 Right 2 SYMATTR Value 125µ SYMATTR InstName L2 SYMATTR Type ind SYMATTR SpiceLine Rser=15m Rpar=5K SYMBOL nmos 560 96 R0 WINDOW 3 60 70 Left 2 WINDOW 0 62 18 Left 2 SYMATTR Value IPB107N20N3 SYMATTR InstName Q1 SYMBOL res 592 272 R0 SYMATTR InstName R6 SYMATTR Value 20m SYMBOL cap 672 48 R0 SYMATTR InstName C4 SYMATTR Value 1000p SYMBOL schottky 832 -144 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName D1 SYMATTR Value B530C SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 928 -48 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D2 SYMATTR Value B530C SYMATTR Description Diode SYMATTR Type diode SYMBOL cap 1152 -112 R0 WINDOW 123 24 77 Left 2 SYMATTR Value 200µ SYMATTR InstName C5 SYMATTR SpiceLine Rser=20m SYMBOL ind 992 -112 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L3 SYMATTR Value 33µ SYMATTR SpiceLine Rser=10m SYMBOL res 1264 -128 R0 SYMATTR InstName Rload SYMATTR Value 5 SYMBOL res -32 448 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R7 SYMATTR Value 20K SYMBOL cap -192 480 R0 SYMATTR InstName C6 SYMATTR Value 1500p SYMBOL res 1104 304 R0 SYMATTR InstName R8 SYMATTR Value 5K SYMBOL res 1104 432 R0 SYMATTR InstName R9 SYMATTR Value 1K SYMBOL cap -32 480 R0 SYMATTR InstName C7 SYMATTR Value 100p TEXT 720 -120 Bottom 2 !K1 L1 L2 .99 TEXT 856 512 Left 2 !.tran 7m startup