Version 4
SHEET 1 2248 1092
WIRE 1312 448 1104 448
WIRE 1552 448 1312 448
WIRE 1104 464 1104 448
WIRE 1552 464 1552 448
WIRE 1104 560 1104 544
WIRE 1552 560 1552 544
WIRE 1552 560 1488 560
WIRE 1552 576 1552 560
WIRE 1312 592 1312 448
WIRE 992 672 976 672
WIRE 1088 672 1072 672
WIRE 1168 672 1152 672
WIRE 1488 672 1488 560
WIRE 1488 672 1456 672
WIRE 1552 672 1552 656
WIRE 1648 672 1552 672
WIRE 1776 672 1712 672
WIRE 1888 672 1776 672
WIRE 2000 672 1888 672
WIRE 1552 688 1552 672
WIRE 1776 688 1776 672
WIRE 1888 688 1888 672
WIRE 2000 688 2000 672
WIRE 1168 768 1136 768
WIRE 1504 768 1456 768
WIRE 1776 784 1776 768
WIRE 1776 784 1712 784
WIRE 1888 784 1888 752
WIRE 2000 784 2000 768
WIRE 1552 800 1552 784
WIRE 1776 800 1776 784
WIRE 1312 864 1312 848
WIRE 1136 896 1136 768
WIRE 1712 896 1712 784
WIRE 1712 896 1136 896
WIRE 1776 896 1776 880
FLAG 2000 672 OUT
FLAG 1104 560 0
FLAG 1888 784 0
FLAG 2000 784 0
FLAG 1776 896 0
FLAG 976 672 0
FLAG 1552 800 0
FLAG 1312 864 0
FLAG 1104 448 IN
SYMBOL ind 1536 560 R0
SYMATTR InstName L1
SYMATTR Value 4.7µ
SYMBOL VOLTAGE 1104 448 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL cap 1152 656 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 500p
SYMBOL RES 1536 448 R0
SYMATTR InstName R1
SYMATTR Value 0.03
SYMBOL res 1760 784 R0
SYMATTR InstName R2
SYMATTR Value 80.5K
SYMBOL res 1760 672 R0
SYMATTR InstName R3
SYMATTR Value 442K
SYMBOL res 1088 656 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 15K
SYMBOL schottky 1648 688 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMBOL POWERPRODUCTS\\LTC1872 1312 720 R0
WINDOW 3 -52 62 Left 2
SYMATTR InstName U1
SYMBOL NMOS 1504 688 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL polcap 1872 688 R0
SYMATTR InstName C3
SYMATTR Value 47µ
SYMATTR SpiceLine Rser=10m
SYMBOL res 1984 672 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 1880 872 Left 2 !.tran 500u startup