Version 4
SHEET 1 1800 680
WIRE -16 -352 -256 -352
WIRE 400 -352 272 -352
WIRE 512 -352 400 -352
WIRE 672 -352 560 -352
WIRE -256 -336 -256 -352
WIRE 400 -336 400 -352
WIRE 512 -336 512 -352
WIRE 672 -336 672 -352
WIRE 560 -320 560 -352
WIRE -256 -240 -256 -256
WIRE 400 -240 400 -272
WIRE 512 -240 512 -256
WIRE 672 -240 672 -256
WIRE -16 -160 -256 -160
WIRE 384 -160 272 -160
WIRE 496 -160 464 -160
WIRE -256 -144 -256 -160
WIRE 496 -112 496 -160
WIRE 576 -112 496 -112
WIRE 576 -80 576 -112
WIRE 384 -64 272 -64
WIRE 496 -64 496 -112
WIRE 496 -64 464 -64
WIRE -256 -48 -256 -64
WIRE 336 16 272 16
WIRE 576 16 576 0
WIRE 336 32 336 16
WIRE 336 128 336 112
WIRE 336 128 272 128
WIRE 336 160 336 128
FLAG -256 -240 0
FLAG 400 -240 0
FLAG 512 -352 OUT
FLAG -256 -352 IN
FLAG 512 -240 0
FLAG 560 -272 0
FLAG 672 -240 0
FLAG 336 160 0
FLAG 576 16 0
FLAG -256 -48 0
SYMBOL voltage -256 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL cap 384 -336 R0
SYMATTR InstName C2
SYMATTR Value 15µ
SYMBOL sw 512 -240 R180
WINDOW 0 -23 102 Right 2
WINDOW 3 -26 2 Right 2
SYMATTR InstName S1
SYMATTR Value SHORT
SYMBOL voltage 672 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 1 70m 1m 1m 100m)
SYMBOL res 480 -176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 20K
SYMBOL res 320 16 R0
SYMATTR InstName R8
SYMATTR Value 1.5K
SYMBOL res 480 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 20K
SYMBOL voltage 576 -96 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL voltage -256 -160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 2
SYMBOL MAX17610 128 -112 R0
SYMATTR InstName U1
TEXT 480 144 Left 2 !.model SHORT SW(Ron=24 Roff=100K Vt=.5 Vh=-.4)
TEXT 480 184 Left 2 !.tran 1.25 startup