Version 4
SHEET 1 1224 1140
WIRE -80 64 -208 64
WIRE 336 64 -80 64
WIRE 448 64 336 64
WIRE -208 80 -208 64
WIRE 336 80 336 64
WIRE -80 160 -80 64
WIRE -64 160 -80 160
WIRE 336 160 336 144
WIRE 336 160 288 160
WIRE -208 176 -208 160
WIRE 336 192 336 160
WIRE 448 224 448 64
WIRE -80 240 -80 160
WIRE -64 240 -80 240
WIRE 304 240 288 240
WIRE 304 304 304 240
WIRE 400 304 304 304
WIRE -64 320 -80 320
WIRE 336 320 336 256
WIRE 336 320 288 320
WIRE 448 320 336 320
WIRE 576 320 448 320
WIRE 688 320 656 320
WIRE 800 320 688 320
WIRE 896 320 800 320
WIRE 800 336 800 320
WIRE 896 336 896 320
WIRE 688 352 688 320
WIRE -64 400 -80 400
WIRE 400 400 288 400
WIRE 448 432 448 416
WIRE 800 432 800 400
WIRE 896 432 896 416
WIRE -160 480 -176 480
WIRE -64 480 -96 480
WIRE 688 480 688 432
WIRE 688 480 288 480
WIRE 688 496 688 480
WIRE 112 544 112 528
WIRE 688 592 688 576
FLAG 448 432 0
FLAG 800 432 0
FLAG 112 544 0
FLAG -208 176 0
FLAG 896 432 0
FLAG 688 592 0
FLAG -176 480 0
FLAG 896 320 OUT
FLAG -208 64 IN
SYMBOL nmos 400 320 R0
SYMATTR InstName Q1
SYMATTR Value FDS6890A
SYMBOL cap 784 336 R0
SYMATTR Value 100µ
SYMATTR InstName C1
SYMBOL cap -160 464 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 60 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 680p
SYMATTR SpiceLine Rser=5.1K
SYMBOL voltage -208 64 R0
WINDOW 3 32 94 Left 2
SYMATTR Value 3.5
SYMATTR InstName V1
SYMBOL ind 560 336 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value .47µ
SYMATTR SpiceLine Rpar=1K
SYMBOL res 672 336 R0
SYMATTR InstName R1
SYMATTR Value 118K
SYMBOL res 672 480 R0
SYMATTR InstName R2
SYMATTR Value 59K
SYMBOL PowerProducts\\LTC3822 112 320 R0
SYMATTR InstName U1
SYMBOL schottky 320 80 R0
SYMATTR InstName D1
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 320 192 R0
SYMATTR InstName C3
SYMATTR Value .22µ
SYMBOL nmos 400 224 R0
SYMATTR InstName Q2
SYMATTR Value FDS6890A
SYMBOL res 880 320 R0
SYMATTR InstName Rload
SYMATTR Value 1
TEXT 800 496 Left 2 !.tran 2m startup