Version 4
SHEET 1 1340 680
WIRE 32 -128 -64 -128
WIRE 144 -128 32 -128
WIRE 160 -128 144 -128
WIRE 272 -128 240 -128
WIRE -64 -112 -64 -128
WIRE 144 -80 144 -128
WIRE 272 -80 272 -128
WIRE -64 -16 -64 -32
WIRE 32 -16 32 -128
WIRE 48 -16 32 -16
WIRE 384 -16 368 -16
WIRE 464 -16 384 -16
WIRE 576 -16 464 -16
WIRE 576 0 576 -16
WIRE 32 80 32 -16
WIRE 48 80 32 80
WIRE 464 80 464 64
WIRE 464 80 368 80
WIRE 576 80 576 64
WIRE 464 96 464 80
WIRE 32 176 32 80
WIRE 48 176 32 176
WIRE 384 176 384 -16
WIRE 384 176 368 176
WIRE 464 192 464 176
WIRE 560 272 368 272
WIRE 688 272 560 272
WIRE 560 288 560 272
WIRE 688 288 688 272
WIRE 992 304 736 304
WIRE 1104 304 1072 304
WIRE 368 384 368 368
WIRE 384 384 368 384
WIRE 480 384 464 384
WIRE 560 384 560 352
WIRE 688 384 688 368
WIRE 688 384 560 384
WIRE 560 400 560 384
WIRE -64 464 -80 464
WIRE 48 464 16 464
WIRE 368 480 368 464
WIRE 384 480 368 480
WIRE 480 480 464 480
WIRE 144 544 144 528
WIRE 272 544 272 528
FLAG 144 544 0
FLAG 272 544 0
FLAG -64 -16 0
FLAG -80 464 0
FLAG 464 192 0
FLAG 576 80 0
FLAG 480 480 0
FLAG 480 384 0
FLAG 560 400 0
FLAG 736 352 0
FLAG 1104 304 0
FLAG -64 -128 IN
FLAG 576 -16 OUT
SYMBOL PowerProducts\\LT3905 208 224 R0
SYMATTR InstName U1
SYMBOL voltage -64 -128 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL ind 144 -112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=80m Rpar=10K
SYMBOL res 32 448 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4.99K
SYMBOL res 448 -32 R0
SYMATTR InstName R2
SYMATTR Value 634K
SYMBOL res 448 80 R0
SYMATTR InstName R3
SYMATTR Value 15K
SYMBOL cap 560 0 R0
SYMATTR InstName C1
SYMATTR Value 220n
SYMBOL res 368 496 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 368 400 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 9.09K
SYMBOL diode 544 352 M180
WINDOW 0 30 59 Left 2
WINDOW 3 33 -2 Left 2
SYMATTR InstName D1
SYMATTR Value APD
SYMBOL g2 688 384 R180
WINDOW 0 -14 103 Right 2
WINDOW 3 -10 9 Right 2
SYMATTR InstName G1
SYMATTR Value 1m
SYMBOL voltage 976 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 -74 56 VBottom 2
WINDOW 39 -53 56 VBottom 2
SYMATTR InstName V2
SYMATTR Value PULSE(10m 1.5 1m 10u 10u .5m 1m)
TEXT 624 440 Left 2 !.model APD D(Is=10n Cjo=10p)
TEXT 680 480 Left 2 !.tran 3m startup