Version 4
SHEET 1 3436 2244
WIRE 1296 1120 1024 1120
WIRE 1504 1120 1456 1120
WIRE 1568 1120 1504 1120
WIRE 1696 1120 1648 1120
WIRE 1808 1120 1696 1120
WIRE 1904 1120 1808 1120
WIRE 1024 1136 1024 1120
WIRE 1296 1136 1296 1120
WIRE 1696 1136 1696 1120
WIRE 1904 1136 1904 1120
WIRE 1504 1152 1504 1120
WIRE 1808 1152 1808 1120
WIRE 1456 1216 1456 1120
WIRE 1456 1216 1424 1216
WIRE 1168 1232 1136 1232
WIRE 1504 1232 1504 1216
WIRE 1024 1248 1024 1216
WIRE 1808 1248 1808 1216
WIRE 1904 1248 1904 1216
WIRE 1696 1280 1696 1216
WIRE 1696 1280 1424 1280
WIRE 1696 1296 1696 1280
WIRE 1072 1328 1056 1328
WIRE 1168 1328 1152 1328
WIRE 1440 1344 1424 1344
WIRE 1536 1344 1504 1344
WIRE 1632 1344 1616 1344
WIRE 1696 1392 1696 1376
WIRE 1296 1440 1296 1424
FLAG 1024 1248 0
FLAG 1296 1440 0
FLAG 1056 1328 0
FLAG 1504 1232 0
FLAG 1696 1392 0
FLAG 1904 1248 0
FLAG 1808 1248 0
FLAG 1632 1344 0
FLAG 1904 1120 OUT
FLAG 1024 1120 IN
SYMBOL res 1168 1312 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 70K
SYMBOL ind 1552 1136 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 75µ
SYMBOL schottky 1488 1216 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 1024 1120 R0
SYMATTR InstName V1
SYMATTR Value 25
SYMBOL res 1680 1120 R0
SYMATTR InstName R2
SYMATTR Value 2.74K
SYMBOL res 1680 1280 R0
SYMATTR InstName R3
SYMATTR Value 2.21K
SYMBOL cap 1504 1328 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value .033µ
SYMBOL cap 1792 1152 R0
SYMATTR InstName C2
SYMATTR Value 400µ
SYMATTR SpiceLine Rser=.1
SYMBOL res 1632 1328 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1.5K
SYMBOL PowerProducts\\LT1076HV 1296 1280 R0
SYMATTR InstName U1
SYMBOL res 1888 1120 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 1480 1432 Left 2 !.tran 3m startup