Version 4
SHEET 1 952 680
WIRE 96 16 -16 16
WIRE 112 16 96 16
WIRE 672 16 400 16
WIRE -16 32 -16 16
WIRE 96 112 96 16
WIRE 112 112 96 112
WIRE 432 112 400 112
WIRE -16 128 -16 112
WIRE 432 128 432 112
WIRE 112 208 96 208
WIRE 432 208 432 192
WIRE 432 208 400 208
WIRE 496 208 432 208
WIRE 592 208 576 208
WIRE 672 208 672 16
WIRE 672 208 592 208
WIRE 768 208 672 208
WIRE 432 224 432 208
WIRE 672 224 672 208
WIRE 768 224 768 208
WIRE 16 304 0 304
WIRE 112 304 96 304
WIRE 432 304 432 288
WIRE 432 304 400 304
WIRE 592 304 592 208
WIRE 672 320 672 288
WIRE 768 320 768 304
WIRE 32 400 0 400
WIRE 112 400 96 400
WIRE 592 400 592 384
WIRE 592 400 400 400
WIRE 592 416 592 400
WIRE 256 464 256 448
WIRE 592 512 592 496
FLAG 592 512 0
FLAG 256 464 0
FLAG 0 400 0
FLAG 0 304 0
FLAG 96 208 0
FLAG 672 320 0
FLAG 768 320 0
FLAG -16 128 0
FLAG -16 16 IN
FLAG 768 208 OUT
SYMBOL PowerProducts\\LT3686 256 208 R0
SYMATTR InstName U1
SYMBOL ind 480 224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 6.8µ
SYMBOL schottky 416 288 M180
WINDOW 0 35 58 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 416 128 R0
WINDOW 3 25 53 Left 2
SYMATTR Value .22µ
SYMATTR InstName C1
SYMBOL res 576 288 R0
SYMATTR InstName R1
SYMATTR Value 31.6K
SYMBOL res 576 400 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap 656 224 R0
SYMATTR InstName C2
SYMATTR Value 22µ
SYMATTR SpiceLine Rser=50m
SYMBOL res 112 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 15.4K
SYMBOL cap 96 384 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .001µ
SYMBOL voltage -16 16 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 752 208 R0
SYMATTR InstName Rload
SYMATTR Value 2.75
TEXT 720 400 Left 2 !.tran 500u startup