Version 4
SHEET 1 2700 680
WIRE 1728 160 1616 160
WIRE 1888 160 1728 160
WIRE 1936 160 1888 160
WIRE 2048 160 2016 160
WIRE 2128 160 2048 160
WIRE 2272 160 2192 160
WIRE 2416 160 2272 160
WIRE 2544 160 2416 160
WIRE 1616 176 1616 160
WIRE 2416 176 2416 160
WIRE 2544 176 2544 160
WIRE 1728 208 1728 160
WIRE 2272 208 2272 160
WIRE 1888 224 1888 160
WIRE 2048 224 2048 160
WIRE 1616 272 1616 256
WIRE 2416 272 2416 240
WIRE 2544 272 2544 256
WIRE 1728 304 1728 288
WIRE 1824 304 1728 304
WIRE 2272 304 2272 288
WIRE 2272 304 2112 304
WIRE 2272 320 2272 304
WIRE 1824 368 1808 368
WIRE 2272 416 2272 400
WIRE 1824 432 1808 432
WIRE 2128 432 2112 432
WIRE 2240 432 2208 432
WIRE 2240 448 2240 432
WIRE 1968 528 1968 512
WIRE 2240 528 2240 512
FLAG 1968 528 0
FLAG 2240 528 0
FLAG 2272 416 0
FLAG 2416 272 0
FLAG 1616 272 0
FLAG 2544 272 0
FLAG 2544 160 OUT
FLAG 1616 160 IN
SYMBOL RES 2112 448 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 68K
SYMBOL res 2256 192 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 2256 304 R0
SYMATTR InstName R3
SYMATTR Value 140K
SYMBOL cap 2224 448 R0
SYMATTR InstName C1
SYMATTR Value 330p
SYMBOL cap 2400 176 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL schottky 2128 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS130L
SYMBOL ind 1920 176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMBOL VOLTAGE 1616 160 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL res 1712 192 R0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 2528 160 R0
SYMATTR InstName Rload
SYMATTR Value 57.5
SYMBOL PowerProducts\\LT1949 1968 368 R0
SYMATTR InstName U1
TEXT 2360 480 Left 2 !.tran .5m startup