Version 4
SHEET 1 1556 680
WIRE 80 -144 -16 -144
WIRE 96 -144 80 -144
WIRE 608 -144 416 -144
WIRE -16 -128 -16 -144
WIRE 80 -48 80 -144
WIRE 96 -48 80 -48
WIRE 464 -48 416 -48
WIRE -16 -32 -16 -48
WIRE 464 -32 464 -48
WIRE 80 48 80 -48
WIRE 96 48 80 48
WIRE 464 48 464 32
WIRE 464 48 416 48
WIRE 512 48 464 48
WIRE 608 48 608 -144
WIRE 608 48 592 48
WIRE 656 48 608 48
WIRE 736 48 656 48
WIRE 464 64 464 48
WIRE 656 64 656 48
WIRE 736 64 736 48
WIRE 96 144 80 144
WIRE 464 144 464 128
WIRE 464 144 416 144
WIRE 656 160 656 128
WIRE 736 160 736 144
WIRE -128 240 -208 240
WIRE 96 240 -48 240
WIRE 464 240 416 240
WIRE 608 240 608 48
WIRE 608 240 528 240
WIRE 96 352 80 352
WIRE 432 352 416 352
WIRE 528 352 496 352
WIRE 96 464 80 464
WIRE 432 464 416 464
WIRE 528 464 496 464
WIRE 96 576 80 576
WIRE 432 576 416 576
WIRE 528 576 512 576
WIRE 256 624 256 608
FLAG 256 624 0
FLAG 528 352 0
FLAG 528 464 0
FLAG 528 576 0
FLAG 656 160 0
FLAG 80 576 0
FLAG -16 -32 0
FLAG 736 160 0
FLAG -208 240 0
FLAG 80 144 0
FLAG 736 48 OUT
FLAG -16 -144 IN
SYMBOL cap 496 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .1n
SYMBOL cap 496 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .68n
SYMBOL res 528 560 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 20.5K
SYMBOL schottky 448 128 M180
WINDOW 0 30 65 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 496 64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 12µ
SYMATTR SpiceLine Rpar=2K
SYMBOL cap 528 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 10p
SYMBOL cap 640 64 R0
SYMATTR InstName C4
SYMATTR Value 22µ
SYMBOL cap 448 -32 R0
WINDOW 3 27 56 Left 2
SYMATTR Value .1µ
SYMATTR InstName C5
SYMBOL voltage -16 -144 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 720 48 R0
SYMATTR InstName Rload
SYMATTR Value 1K
SYMBOL voltage -32 240 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value pulse(0 2 0 1u 1u 250u 500u)
SYMBOL PowerProducts\\LT3689-5 256 192 R0
SYMATTR InstName U1
TEXT 632 520 Left 2 !.tran 3m startup