Version 4
SHEET 1 2456 1432
WIRE 1472 912 1296 912
WIRE 1600 912 1472 912
WIRE 1664 912 1600 912
WIRE 1792 912 1744 912
WIRE 1840 912 1792 912
WIRE 1952 912 1904 912
WIRE 2064 912 1952 912
WIRE 2176 912 2064 912
WIRE 1296 928 1296 912
WIRE 2064 928 2064 912
WIRE 2176 928 2176 912
WIRE 1952 944 1952 912
WIRE 1472 960 1472 912
WIRE 1600 960 1600 912
WIRE 1296 1024 1296 1008
WIRE 1392 1024 1376 1024
WIRE 1792 1024 1792 912
WIRE 1792 1024 1680 1024
WIRE 2064 1024 2064 992
WIRE 2176 1024 2176 1008
WIRE 1952 1104 1952 1024
WIRE 1952 1104 1680 1104
WIRE 1952 1120 1952 1104
WIRE 1392 1184 1376 1184
WIRE 1696 1184 1680 1184
WIRE 1952 1216 1952 1200
WIRE 1536 1264 1536 1248
FLAG 2176 912 OUT
FLAG 1952 1216 0
FLAG 2064 1024 0
FLAG 2176 1024 0
FLAG 1296 1024 0
FLAG 1696 1184 0
FLAG 1536 1264 0
FLAG 1296 912 IN
SYMBOL VOLTAGE 1296 912 R0
SYMATTR InstName V1
SYMATTR Value 2.8
SYMBOL POLCAP 2048 928 R0
SYMATTR InstName C2
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=0.02
SYMBOL schottky 1840 928 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMBOL IND 1648 928 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 33µ
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL RES 1936 928 R0
SYMATTR InstName R1
SYMATTR Value 753K
SYMBOL RES 1936 1104 R0
SYMATTR InstName R2
SYMATTR Value 250K
SYMBOL POWERPRODUCTS\\LT1108 1536 1104 R0
SYMATTR InstName U1
SYMBOL res 2160 912 R0
SYMATTR InstName Rload
SYMATTR Value 25
TEXT 1712 1256 Left 2 !.tran 5m startup