Version 4
SHEET 1 880 680
WIRE -48 48 -128 48
WIRE 240 48 -48 48
WIRE 336 48 240 48
WIRE 480 48 416 48
WIRE 512 48 480 48
WIRE 608 48 576 48
WIRE 656 48 608 48
WIRE 752 48 656 48
WIRE -128 64 -128 48
WIRE 656 64 656 48
WIRE 752 64 752 48
WIRE 240 96 240 48
WIRE -128 160 -128 144
WIRE 0 160 -16 160
WIRE 80 160 64 160
WIRE 480 160 480 48
WIRE 480 160 400 160
WIRE 656 160 656 128
WIRE 752 160 752 144
WIRE -48 240 -48 48
WIRE 80 240 -48 240
WIRE 432 240 400 240
WIRE 608 240 608 48
WIRE 480 272 480 256
WIRE -96 336 -112 336
WIRE -16 336 -32 336
WIRE 80 336 64 336
WIRE 608 336 608 320
WIRE 608 336 400 336
WIRE 608 352 608 336
WIRE 240 416 240 400
WIRE 608 448 608 432
FLAG -128 160 0
FLAG -16 160 0
FLAG -112 336 0
FLAG 240 416 0
FLAG 480 272 0
FLAG 656 160 0
FLAG 752 160 0
FLAG 608 448 0
FLAG 752 48 OUT
FLAG -128 48 IN
SYMBOL PowerProducts\\LTC3872 240 240 R0
SYMATTR InstName U1
SYMBOL nmos 432 160 R0
SYMATTR InstName Q1
SYMATTR Value Si3460DV
SYMBOL ind 320 64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2.2µ
SYMBOL voltage -128 48 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL cap 64 144 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL cap -32 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 4700p
SYMBOL schottky 512 64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 640 64 R0
SYMATTR InstName C3
SYMATTR Value 10µ
SYMBOL res 592 224 R0
SYMATTR InstName R1
SYMATTR Value 38K
SYMBOL res 592 336 R0
SYMATTR InstName R2
SYMATTR Value 12K
SYMBOL res 80 320 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 6.81K
SYMBOL res 736 48 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 312 440 Left 2 !.tran 1.5m startup