Version 4
SHEET 1 880 680
WIRE 304 -96 176 -96
WIRE 512 -96 368 -96
WIRE 176 0 176 -96
WIRE 176 0 -48 0
WIRE 208 0 176 0
WIRE 336 0 288 0
WIRE 400 0 336 0
WIRE 512 0 512 -96
WIRE 512 0 464 0
WIRE -48 16 -48 0
WIRE 176 64 176 0
WIRE 336 64 336 0
WIRE 512 80 512 0
WIRE -48 112 -48 96
WIRE 112 144 48 144
WIRE 512 208 512 160
WIRE 512 208 400 208
WIRE 48 272 48 144
WIRE 112 272 48 272
WIRE 48 288 48 272
WIRE 48 368 48 352
WIRE 256 368 256 352
FLAG 256 368 0
FLAG 48 368 0
FLAG -48 112 0
FLAG -48 0 IN
SYMBOL PowerProducts\\LT3590 256 208 R0
SYMATTR InstName U1
SYMBOL res 192 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 4
SYMBOL LED 400 16 R270
WINDOW 0 75 35 VTop 2
WINDOW 3 0 32 VBottom 2
WINDOW 123 -35 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value QTLP690C
SYMATTR Value2 N=4
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 496 64 R0
SYMATTR InstName L1
SYMATTR Value 470µ
SYMBOL cap 304 -80 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap 32 288 R0
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL voltage -48 0 R0
SYMATTR InstName V1
SYMATTR Value 48
TEXT 432 320 Left 2 !.tran 300u startup