Version 4
SHEET 1 1224 996
WIRE 48 -80 -160 -80
WIRE 176 -80 48 -80
WIRE 400 -80 176 -80
WIRE -160 -64 -160 -80
WIRE 176 -64 176 -80
WIRE -160 32 -160 16
WIRE 48 32 48 -80
WIRE 176 32 176 16
WIRE -64 80 -80 80
WIRE 400 80 400 -80
WIRE 400 80 288 80
WIRE 400 144 400 80
WIRE -64 160 -80 160
WIRE 352 160 288 160
WIRE -64 240 -80 240
WIRE 400 240 288 240
WIRE 400 288 400 240
WIRE 448 288 400 288
WIRE 560 288 528 288
WIRE 656 288 560 288
WIRE 752 288 656 288
WIRE 656 304 656 288
WIRE 752 304 752 288
WIRE -64 320 -80 320
WIRE 400 320 400 288
WIRE 400 320 288 320
WIRE 560 384 560 288
WIRE -64 400 -80 400
WIRE 352 400 288 400
WIRE 656 400 656 368
WIRE 752 400 752 384
WIRE 400 432 400 416
WIRE -240 480 -256 480
WIRE -144 480 -160 480
WIRE -64 480 -80 480
WIRE 560 480 560 464
WIRE 560 480 288 480
WIRE 560 496 560 480
WIRE 112 544 112 528
WIRE 560 592 560 576
FLAG 400 432 0
FLAG 656 400 0
FLAG -256 480 0
FLAG 112 544 0
FLAG -160 32 0
FLAG 752 400 0
FLAG 560 592 0
FLAG -80 160 0
FLAG -160 -80 IN
FLAG 752 288 OUT
SYMBOL nmos 352 320 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL pmos 352 240 M180
WINDOW 0 58 64 Left 2
WINDOW 3 53 25 Left 2
SYMATTR InstName Q2
SYMATTR Value FDC638P
SYMBOL cap 640 304 R0
SYMATTR SpiceLine Rser=50m
SYMATTR Value 47µ
SYMATTR InstName C1
SYMBOL cap -144 464 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 220p
SYMBOL res -256 464 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 15K
SYMBOL voltage -160 -80 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res 160 -80 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL ind 432 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2.2µ
SYMATTR SpiceLine Rpar=1K
SYMBOL PowerProducts\\LTC3808 112 272 R0
SYMATTR InstName U1
SYMBOL res 544 368 R0
SYMATTR InstName R3
SYMATTR Value 187K
SYMBOL res 544 480 R0
SYMATTR InstName R4
SYMATTR Value 59K
SYMBOL res 736 288 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 648 560 Left 2 !.tran 2.5m startup