Version 4
SHEET 1 2700 680
WIRE 1728 128 1616 128
WIRE 1888 128 1728 128
WIRE 1936 128 1888 128
WIRE 2048 128 2016 128
WIRE 2112 128 2048 128
WIRE 2272 128 2176 128
WIRE 2384 128 2272 128
WIRE 2496 128 2384 128
WIRE 1616 144 1616 128
WIRE 2384 144 2384 128
WIRE 2496 144 2496 128
WIRE 1728 176 1728 128
WIRE 2272 176 2272 128
WIRE 1888 224 1888 128
WIRE 2048 224 2048 128
WIRE 1616 240 1616 224
WIRE 2384 240 2384 208
WIRE 2496 240 2496 224
WIRE 1728 304 1728 256
WIRE 1824 304 1728 304
WIRE 2272 304 2272 256
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 2224 432 2208 432
WIRE 2224 448 2224 432
WIRE 2224 528 2224 512
WIRE 1968 560 1968 512
FLAG 1968 560 0
FLAG 2224 528 0
FLAG 2272 416 0
FLAG 2384 240 0
FLAG 1616 240 0
FLAG 2496 240 0
FLAG 1616 128 IN
FLAG 2496 128 OUT
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 160 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 2256 304 R0
SYMATTR InstName R3
SYMATTR Value 140K
SYMBOL cap 2208 448 R0
SYMATTR InstName C1
SYMATTR Value 330p
SYMBOL cap 2368 144 R0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL schottky 2112 144 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS130L
SYMBOL ind 1920 144 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMBOL VOLTAGE 1616 128 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL res 1712 160 R0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 2480 128 R0
SYMATTR InstName Rload
SYMATTR Value 57.5
SYMBOL PowerProducts\\LT1949-1 1968 368 R0
SYMATTR InstName U1
TEXT 2384 480 Left 2 !.tran 1m startup