Version 4
SHEET 1 2392 1424
WIRE 1376 912 1232 912
WIRE 1504 912 1376 912
WIRE 1568 912 1504 912
WIRE 1680 912 1648 912
WIRE 1728 912 1680 912
WIRE 1840 912 1792 912
WIRE 1952 912 1840 912
WIRE 2064 912 1952 912
WIRE 1232 928 1232 912
WIRE 1952 928 1952 912
WIRE 2064 928 2064 912
WIRE 1840 944 1840 912
WIRE 1376 960 1376 912
WIRE 1504 960 1504 912
WIRE 1232 1024 1232 1008
WIRE 1952 1024 1952 992
WIRE 2064 1024 2064 1008
WIRE 1680 1040 1680 912
WIRE 1680 1040 1568 1040
WIRE 1840 1104 1840 1024
WIRE 1840 1104 1568 1104
WIRE 1840 1120 1840 1104
WIRE 1584 1168 1568 1168
WIRE 1840 1216 1840 1200
WIRE 1440 1264 1440 1248
FLAG 1584 1168 0
FLAG 1440 1264 0
FLAG 1232 1024 0
FLAG 2064 1024 0
FLAG 1952 1024 0
FLAG 1840 1216 0
FLAG 2064 912 OUT
FLAG 1232 912 IN
SYMBOL RES 1824 928 R0
SYMATTR InstName R1
SYMATTR Value 500K
SYMBOL RES 1824 1104 R0
SYMATTR InstName R2
SYMATTR Value 25K
SYMBOL IND 1552 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 schottky 1728 928 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMBOL POLCAP 1936 928 R0
SYMATTR InstName C2
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=0.02
SYMBOL VOLTAGE 1232 912 R0
SYMATTR InstName V1
SYMATTR Value 2.8
SYMBOL POWERPRODUCTS\\LT1073 1440 1104 R0
WINDOW 0 72 -160 Left 2
SYMATTR InstName U1
SYMBOL res 2048 912 R0
SYMATTR InstName Rload
SYMATTR Value 25
TEXT 1704 1280 Left 2 !.tran 3m startup