Version 4
SHEET 1 880 692
WIRE -256 -64 -336 -64
WIRE -160 -64 -256 -64
WIRE 160 -64 -160 -64
WIRE 304 -64 160 -64
WIRE 432 -64 384 -64
WIRE 464 -64 432 -64
WIRE 560 -64 528 -64
WIRE 624 -64 560 -64
WIRE 688 -64 624 -64
WIRE -336 -48 -336 -64
WIRE 560 -48 560 -64
WIRE 688 -48 688 -64
WIRE -112 0 -128 0
WIRE -16 0 -32 0
WIRE 192 0 -16 0
WIRE 336 0 272 0
WIRE 368 0 336 0
WIRE 368 16 368 0
WIRE -336 48 -336 32
WIRE 160 48 160 -64
WIRE 560 48 560 16
WIRE 688 48 688 32
WIRE -160 80 -160 -64
WIRE -16 96 -16 0
WIRE 0 96 -16 96
WIRE 336 96 336 0
WIRE 336 96 320 96
WIRE 368 96 368 80
WIRE 432 112 432 -64
WIRE -160 192 -160 160
WIRE 0 192 -160 192
WIRE 384 192 320 192
WIRE -160 208 -160 192
WIRE 512 208 432 208
WIRE 0 288 -64 288
WIRE 432 288 320 288
WIRE -160 304 -160 288
WIRE 432 304 432 288
WIRE -256 336 -256 -64
WIRE 160 352 160 336
WIRE -64 384 -64 288
WIRE -64 384 -128 384
WIRE -560 448 -576 448
WIRE -480 448 -496 448
WIRE -384 448 -400 448
WIRE 512 448 512 208
WIRE 512 448 -128 448
WIRE -48 512 -128 512
WIRE 16 512 -48 512
WIRE 624 512 624 -64
WIRE 624 512 96 512
WIRE -48 528 -48 512
WIRE -256 576 -256 560
WIRE -48 624 -48 608
FLAG 432 304 0
FLAG -128 0 0
FLAG 368 96 0
FLAG -160 304 0
FLAG 560 48 0
FLAG -336 48 0
FLAG -256 576 0
FLAG -48 624 0
FLAG -576 448 0
FLAG 688 48 0
FLAG 160 352 0
FLAG 688 -64 OUT
FLAG -336 -64 IN
SYMBOL nmos 384 112 R0
SYMATTR InstName Q1
SYMATTR Value Si7370DP
SYMBOL res 416 192 R0
SYMATTR InstName R1
SYMATTR Value 5m
SYMBOL res -16 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 86.6K
SYMBOL res 288 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 330K
SYMBOL cap 352 16 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res -176 64 R0
SYMATTR InstName R4
SYMATTR Value 100K
SYMBOL res -176 192 R0
SYMATTR InstName R5
SYMATTR Value 20K
SYMBOL ind 288 -48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMATTR SpiceLine Rpar=2K
SYMBOL schottky 464 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBR745
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 544 -48 R0
SYMATTR InstName C2
SYMATTR Value 25µ
SYMBOL PowerProducts\\LTC3803 -256 448 R0
SYMATTR InstName U1
SYMBOL voltage -336 -64 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL res -64 512 R0
SYMATTR InstName R6
SYMATTR Value 10K
SYMBOL res 112 496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 300K
SYMBOL cap -496 432 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .0047µ
SYMBOL res -384 432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 56K
SYMBOL PowerProducts\\LTC4441-1 160 192 R0
SYMATTR InstName U2
SYMBOL res 672 -64 R0
SYMATTR InstName Rload
SYMATTR Value 100
TEXT 352 560 Left 2 !.tran 4m startup