Version 4
SHEET 1 1676 868
WIRE 272 -16 192 -16
WIRE 464 -16 272 -16
WIRE 624 -16 464 -16
WIRE 976 -16 624 -16
WIRE 192 0 192 -16
WIRE 464 0 464 -16
WIRE 272 32 272 -16
WIRE 976 80 976 -16
WIRE 192 96 192 80
WIRE 464 96 464 80
WIRE 624 96 624 -16
WIRE 272 160 272 112
WIRE 352 160 272 160
WIRE 928 160 736 160
WIRE 832 224 736 224
WIRE 976 224 976 176
WIRE 976 224 832 224
WIRE 1040 224 976 224
WIRE 1088 224 1040 224
WIRE 1184 224 1168 224
WIRE 1232 224 1184 224
WIRE 1344 224 1232 224
WIRE 1232 240 1232 224
WIRE 1344 240 1344 224
WIRE 1040 256 1040 224
WIRE 832 288 832 224
WIRE 832 288 736 288
WIRE 1232 336 1232 304
WIRE 1344 336 1344 320
WIRE 272 352 240 352
WIRE 352 352 336 352
WIRE 832 352 736 352
WIRE 1040 352 1040 320
WIRE 976 400 976 224
WIRE 352 416 336 416
WIRE 832 416 736 416
WIRE 176 480 160 480
WIRE 256 480 240 480
WIRE 352 480 336 480
WIRE 928 480 736 480
WIRE 832 496 832 416
WIRE 976 512 976 496
WIRE 352 544 336 544
WIRE 768 544 736 544
WIRE 352 608 336 608
WIRE 768 608 768 544
WIRE 768 608 736 608
WIRE 1184 608 1184 224
WIRE 1184 608 768 608
WIRE 352 672 336 672
WIRE 768 672 736 672
WIRE 352 736 336 736
WIRE 768 736 736 736
WIRE 464 816 464 800
WIRE 624 816 624 800
FLAG 464 816 0
FLAG 624 816 0
FLAG 976 512 0
FLAG 832 560 0
FLAG 1040 352 0
FLAG 1344 336 0
FLAG 1232 336 0
FLAG 160 480 0
FLAG 192 96 0
FLAG 240 352 0
FLAG 1344 224 OUT
FLAG 768 736 0
FLAG 336 736 0
FLAG 336 672 0
FLAG 336 608 0
FLAG 336 544 0
FLAG 192 -16 IN
SYMBOL NMOS 928 400 R0
SYMATTR InstName Q1
SYMATTR Value Si4420DY
SYMBOL RES 448 -16 R0
SYMATTR InstName R1
SYMATTR Value 1.5Meg
SYMBOL schottky 816 416 M180
WINDOW 0 41 47 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL cap 816 496 R0
WINDOW 3 33 52 Left 2
SYMATTR Value 4.7µ
SYMATTR InstName C1
SYMBOL schottky 1024 320 M180
WINDOW 0 24 72 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL nmos 928 80 R0
SYMATTR InstName Q2
SYMATTR Value Si4420DY
SYMBOL ind 1072 240 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.8µ
SYMBOL polcap 1216 240 R0
SYMATTR SpiceLine Rser=50m
SYMATTR InstName C2
SYMATTR Value 470µ
SYMBOL res 352 464 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL cap 240 464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .01µ
SYMBOL res 256 16 R0
SYMATTR InstName R3
SYMATTR Value 3.3K
SYMBOL VOLTAGE 192 -16 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL cap 336 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .001µ
SYMBOL cap 816 288 R0
WINDOW 0 29 11 Left 2
WINDOW 3 28 48 Left 2
SYMATTR InstName C5
SYMATTR Value .22µ
SYMBOL POWERPRODUCTS\\LTC3711 544 448 R0
SYMATTR InstName U1
SYMBOL res 1328 224 R0
SYMATTR InstName Rload
SYMATTR Value .25
TEXT 904 648 Left 2 !.tran 2.5m startup