Version 4
SHEET 1 1268 680
WIRE -16 0 -128 0
WIRE 32 0 -16 0
WIRE 144 0 112 0
WIRE 256 0 144 0
WIRE 480 0 368 0
WIRE 624 0 480 0
WIRE 704 0 624 0
WIRE -128 16 -128 0
WIRE 704 16 704 0
WIRE 144 48 144 0
WIRE 256 48 256 0
WIRE 368 48 368 0
WIRE 704 96 704 80
WIRE -128 112 -128 96
WIRE -16 112 -16 0
WIRE 80 112 -16 112
WIRE 624 112 624 0
WIRE 624 112 432 112
WIRE -16 128 -16 112
WIRE 624 128 624 112
WIRE -16 224 -16 208
WIRE 80 224 -16 224
WIRE 624 224 624 208
WIRE 624 224 432 224
WIRE -16 240 -16 224
WIRE 480 240 480 0
WIRE 624 304 624 224
WIRE -16 336 -16 320
WIRE 80 336 64 336
WIRE 480 336 480 320
WIRE 480 336 432 336
WIRE 480 352 480 336
WIRE 624 432 624 368
WIRE 64 448 64 336
WIRE 80 448 64 448
WIRE 448 448 432 448
WIRE 480 448 480 432
WIRE 256 512 256 496
WIRE 64 544 64 448
WIRE 448 544 448 448
WIRE 448 544 64 544
FLAG 256 512 0
FLAG -128 112 0
FLAG -16 336 0
FLAG 624 432 0
FLAG 480 448 0
FLAG 704 96 0
FLAG -128 0 IN
SYMBOL voltage -128 0 R0
SYMATTR InstName V1
SYMATTR Value 12.4
SYMBOL res 464 224 R0
SYMATTR InstName R1
SYMATTR Value 1Meg
SYMBOL res -32 112 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res -32 224 R0
SYMATTR InstName R3
SYMATTR Value 243K
SYMBOL res 608 112 R0
SYMATTR InstName R4
SYMATTR Value 2.49
SYMBOL res 464 336 R0
SYMATTR InstName R5
SYMATTR Value 29.4K
SYMBOL ind 16 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 34µ
SYMBOL cap 688 16 R0
SYMATTR InstName C1
SYMATTR Value 4.7µ
SYMBOL LED 608 304 R0
WINDOW 123 24 100 Left 2
SYMATTR Value2 N=10
SYMATTR InstName D1
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL PowerProducts\\LT3519-1 256 272 R0
SYMATTR InstName U1
TEXT 616 512 Left 2 !.tran 1m startup