Version 4
SHEET 1 1152 680
WIRE 96 -64 0 -64
WIRE 416 -64 96 -64
WIRE 0 -48 0 -64
WIRE 96 0 96 -64
WIRE 112 0 96 0
WIRE 416 0 416 -64
WIRE 416 0 400 0
WIRE 0 48 0 32
WIRE 112 96 96 96
WIRE 752 96 400 96
WIRE 32 192 16 192
WIRE 112 192 96 192
WIRE 464 192 400 192
WIRE 464 208 464 192
WIRE 16 288 0 288
WIRE 112 288 96 288
WIRE 464 288 464 272
WIRE 464 288 400 288
WIRE 576 288 464 288
WIRE 640 288 576 288
WIRE 752 288 752 96
WIRE 752 288 720 288
WIRE 848 288 752 288
WIRE 928 288 848 288
WIRE 1024 288 928 288
WIRE 464 304 464 288
WIRE 576 304 576 288
WIRE 752 304 752 288
WIRE 848 304 848 288
WIRE 928 304 928 288
WIRE 1024 304 1024 288
WIRE 112 384 96 384
WIRE 416 384 400 384
WIRE 416 400 416 384
WIRE 752 400 752 384
WIRE 752 400 416 400
WIRE 848 400 848 368
WIRE 848 400 752 400
WIRE 928 400 928 368
WIRE 1024 400 1024 384
WIRE 752 432 752 400
WIRE 752 528 752 512
FLAG 96 384 0
FLAG 0 288 0
FLAG 16 192 0
FLAG 0 48 0
FLAG 928 400 0
FLAG 752 528 0
FLAG 1024 400 0
FLAG 1024 288 OUT
FLAG 0 -64 IN
FLAG 464 368 0
FLAG 576 368 0
SYMBOL res 112 272 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 78.7K
SYMBOL cap 96 176 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .002µ
SYMBOL voltage 0 -64 R0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL ind 624 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 3.3µ
SYMATTR SpiceLine Rser=10m
SYMBOL cap 448 208 R0
SYMATTR InstName C3
SYMATTR Value .47µ
SYMBOL cap 912 304 R0
WINDOW 123 25 64 Left 2
WINDOW 3 37 37 Left 2
SYMATTR Value2 x2
SYMATTR Value 47µ
SYMATTR InstName C4
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL res 736 288 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 736 416 R0
SYMATTR InstName R3
SYMATTR Value 576K
SYMBOL cap 832 304 R0
SYMATTR InstName C5
SYMATTR Value 10p
SYMBOL res 1008 288 R0
SYMATTR InstName Rload
SYMATTR Value .66
SYMBOL schottky 448 368 M180
WINDOW 0 24 64 Left 2
WINDOW 3 30 15 Left 2
SYMATTR InstName D1
SYMATTR Value B540C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL PowerProducts\\LT3976 256 192 R0
SYMATTR InstName U1
SYMBOL cap 560 304 R0
WINDOW 39 32 55 Left 2
WINDOW 3 39 31 Left 2
SYMATTR SpiceLine Rser=2
SYMATTR Value 470p
SYMATTR InstName C2
TEXT 928 480 Left 2 !.tran 1m startup