Version 4
SHEET 1 1132 680
WIRE -96 -288 -192 -288
WIRE 496 -288 -96 -288
WIRE -192 -272 -192 -288
WIRE 96 -240 80 -240
WIRE 208 -240 160 -240
WIRE 368 -240 208 -240
WIRE 496 -224 496 -288
WIRE 368 -208 368 -240
WIRE 208 -192 208 -240
WIRE -192 -176 -192 -192
WIRE -96 -128 -96 -288
WIRE 16 -128 -96 -128
WIRE 80 -128 16 -128
WIRE 368 -128 368 -144
WIRE 368 -128 336 -128
WIRE 496 -128 496 -144
WIRE 496 -128 400 -128
WIRE 16 -112 16 -128
WIRE 496 -112 496 -128
WIRE 80 -32 16 -32
WIRE 448 -32 336 -32
WIRE -16 64 -32 64
WIRE 80 64 64 64
WIRE 400 64 400 -128
WIRE 400 64 336 64
WIRE 368 80 368 -128
WIRE -16 160 -32 160
WIRE 80 160 48 160
WIRE 368 160 368 144
WIRE 368 160 336 160
WIRE 496 160 496 -16
WIRE 496 160 368 160
WIRE 560 160 496 160
WIRE 672 160 640 160
WIRE 832 160 672 160
WIRE 928 160 832 160
WIRE 1040 160 928 160
WIRE 496 176 496 160
WIRE 928 176 928 160
WIRE 1040 176 1040 160
WIRE 672 240 672 160
WIRE 832 240 832 160
WIRE -16 256 -32 256
WIRE 80 256 64 256
WIRE 448 256 336 256
WIRE 928 272 928 240
WIRE 1040 272 1040 256
WIRE 496 304 496 272
WIRE -96 336 -96 -128
WIRE 384 352 336 352
WIRE 672 352 672 304
WIRE 672 352 384 352
WIRE 832 352 832 320
WIRE 832 352 672 352
WIRE 384 368 384 352
WIRE 832 368 832 352
WIRE -96 448 -96 416
WIRE 80 448 -96 448
WIRE 384 448 384 432
WIRE 384 448 336 448
WIRE -96 464 -96 448
WIRE 832 464 832 448
WIRE 160 528 160 512
WIRE 256 528 256 512
WIRE -96 560 -96 544
FLAG -192 -176 0
FLAG 496 304 0
FLAG 928 272 0
FLAG 80 -240 0
FLAG -32 64 0
FLAG -32 160 0
FLAG -32 256 0
FLAG 160 528 0
FLAG 256 528 0
FLAG -96 560 0
FLAG 832 464 0
FLAG 1040 272 0
FLAG 1040 160 OUT
FLAG -192 -288 IN
SYMBOL PowerProducts\\LTC3775 208 160 R0
SYMATTR InstName U1
SYMBOL voltage -192 -288 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 0 -128 R0
SYMATTR InstName R1
SYMATTR Value 464
SYMBOL nmos 448 -112 R0
SYMATTR InstName M1
SYMATTR Value Si4840DY
SYMBOL nmos 448 176 R0
SYMATTR InstName M2
SYMATTR Value Si4840DY
SYMBOL ind 544 176 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 1.2µ
SYMATTR SpiceLine Rser=2m Rpar=5K
SYMBOL cap 352 80 R0
SYMATTR InstName C1
SYMATTR Value .1µ
SYMBOL schottky 352 -208 R0
WINDOW 3 23 67 Left 2
SYMATTR Value CMDSH2-3
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 480 -240 R0
SYMATTR InstName R2
SYMATTR Value 3m
SYMBOL polcap 912 176 R0
WINDOW 3 37 41 Left 2
WINDOW 123 35 73 Left 2
SYMATTR Value 330µ
SYMATTR Value2 x3
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=4 Irms=2.32 Rser=0.027 Lser=0 mfg="Sanyo OSCON" pn="4SVPC330M" type="Al electrolytic"
SYMBOL cap 160 -256 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 4.7µ
SYMBOL res 80 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 133K
SYMBOL cap 48 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value .001µ
SYMBOL res 80 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 39.2K
SYMBOL res -112 320 R0
SYMATTR InstName R5
SYMATTR Value 43.2K
SYMBOL res -112 448 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 816 224 R0
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL res 816 352 R0
SYMATTR InstName R8
SYMATTR Value 3.16K
SYMBOL cap 368 368 R0
WINDOW 39 25 68 Left 2
WINDOW 3 42 35 Left 2
SYMATTR SpiceLine Rser=15K Cpar=330p
SYMATTR Value 2200p
SYMATTR InstName C5
SYMBOL res 1024 160 R0
SYMATTR InstName Rload
SYMATTR Value .25
SYMBOL cap 656 240 R0
WINDOW 3 41 31 Left 2
WINDOW 39 21 62 Left 2
SYMATTR Value 1500p
SYMATTR SpiceLine Rser=390
SYMATTR InstName C6
TEXT 784 528 Left 2 !.tran 1m startup