Version 4
SHEET 1 2216 1092
WIRE 1312 448 1056 448
WIRE 1552 448 1312 448
WIRE 1056 464 1056 448
WIRE 1552 464 1552 448
WIRE 1056 560 1056 544
WIRE 1552 560 1552 544
WIRE 1552 560 1504 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 1504 672 1504 560
WIRE 1504 672 1456 672
WIRE 1552 672 1552 656
WIRE 1616 672 1552 672
WIRE 1760 672 1680 672
WIRE 1888 672 1760 672
WIRE 1984 672 1888 672
WIRE 1552 688 1552 672
WIRE 1760 688 1760 672
WIRE 1888 688 1888 672
WIRE 1984 688 1984 672
WIRE 1168 768 1136 768
WIRE 1504 768 1456 768
WIRE 1760 784 1760 768
WIRE 1760 784 1696 784
WIRE 1888 784 1888 752
WIRE 1984 784 1984 768
WIRE 1552 800 1552 784
WIRE 1760 800 1760 784
WIRE 1312 864 1312 848
WIRE 1136 896 1136 768
WIRE 1696 896 1696 784
WIRE 1696 896 1136 896
WIRE 1760 896 1760 880
FLAG 1984 672 OUT
FLAG 1056 560 0
FLAG 1888 784 0
FLAG 1984 784 0
FLAG 1760 896 0
FLAG 976 672 0
FLAG 1552 800 0
FLAG 1312 864 0
FLAG 1056 448 IN
SYMBOL ind 1536 560 R0
SYMATTR InstName L1
SYMATTR Value 4.7µ
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL VOLTAGE 1056 448 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL polcap 1872 688 R0
SYMATTR SpiceLine Rser=.1
SYMATTR InstName C1
SYMATTR Value 44µ
SYMBOL cap 1152 656 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 220p
SYMBOL RES 1536 448 R0
SYMATTR InstName R1
SYMATTR Value 0.03
SYMBOL res 1744 784 R0
SYMATTR InstName R2
SYMATTR Value 80.5K
SYMBOL res 1744 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 10K
SYMBOL schottky 1616 688 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMBOL res 1968 672 R0
SYMATTR InstName Rload
SYMATTR Value 5
SYMBOL NMOS 1504 688 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL PowerProducts\\LTC1872B 1312 720 R0
WINDOW 3 -52 61 Left 2
SYMATTR InstName U1
TEXT 1832 920 Left 2 !.tran 500u startup