Version 4
SHEET 1 984 680
WIRE 80 -144 -32 -144
WIRE 96 -144 80 -144
WIRE 608 -144 416 -144
WIRE -32 -128 -32 -144
WIRE 80 -48 80 -144
WIRE 96 -48 80 -48
WIRE 464 -48 416 -48
WIRE -32 -32 -32 -48
WIRE 464 -32 464 -48
WIRE 16 48 0 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 704 48 608 48
WIRE 800 48 704 48
WIRE 880 48 800 48
WIRE 464 64 464 48
WIRE 800 64 800 48
WIRE 880 64 880 48
WIRE 704 96 704 48
WIRE 608 112 608 48
WIRE 96 144 80 144
WIRE 464 144 464 128
WIRE 464 144 416 144
WIRE 800 160 800 128
WIRE 880 160 880 144
WIRE -144 240 -224 240
WIRE 96 240 -64 240
WIRE 608 240 608 192
WIRE 608 240 416 240
WIRE 704 240 704 160
WIRE 704 240 608 240
WIRE 608 256 608 240
WIRE 96 352 80 352
WIRE 432 352 416 352
WIRE 528 352 496 352
WIRE 608 352 608 336
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 608 352 0
FLAG 800 160 0
FLAG 80 576 0
FLAG -32 -32 0
FLAG 880 160 0
FLAG -224 240 0
FLAG 80 144 0
FLAG 880 48 OUT
FLAG -32 -144 IN
FLAG 0 48 0
SYMBOL res 592 96 R0
SYMATTR InstName R1
SYMATTR Value 316K
SYMBOL cap 496 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .01n
SYMBOL cap 496 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .047n
SYMBOL res 592 240 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 528 560 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 110K
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 688 96 R0
SYMATTR InstName C3
SYMATTR Value 10p
SYMBOL cap 784 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 -32 -144 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 864 48 R0
SYMATTR InstName Rload
SYMATTR Value 1K
SYMBOL voltage -48 240 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\\LT3688 256 192 R0
SYMATTR InstName U1
SYMBOL cap 80 64 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C6
SYMATTR Value 1000p
TEXT 632 520 Left 2 !.tran 3m startup