Version 4
SHEET 1 2188 1012
WIRE -256 -64 -368 -64
WIRE -48 -64 -256 -64
WIRE 80 -64 -48 -64
WIRE -368 -48 -368 -64
WIRE 208 -48 -128 -48
WIRE 528 -48 208 -48
WIRE 656 -48 528 -48
WIRE 656 -32 656 -48
WIRE 80 -16 80 -64
WIRE 208 -16 208 -48
WIRE 336 -16 336 -32
WIRE -128 0 -128 -48
WIRE 528 0 528 -48
WIRE -48 32 -48 -64
WIRE -32 32 -48 32
WIRE 480 32 464 32
WIRE -368 48 -368 32
WIRE 656 48 656 32
WIRE -256 112 -256 -64
WIRE -128 112 -128 64
WIRE -32 112 -128 112
WIRE 528 112 528 64
WIRE 528 112 464 112
WIRE 704 112 672 112
WIRE 800 112 704 112
WIRE 848 112 800 112
WIRE 944 112 848 112
WIRE 704 128 704 112
WIRE 848 128 848 112
WIRE 944 128 944 112
WIRE -32 192 -208 192
WIRE 624 192 464 192
WIRE 704 208 704 192
WIRE 704 208 672 208
WIRE 848 224 848 192
WIRE 944 224 944 208
WIRE -288 272 -400 272
WIRE -256 272 -256 208
WIRE -256 272 -288 272
WIRE -128 272 -128 176
WIRE -128 272 -256 272
WIRE -32 272 -128 272
WIRE 528 272 528 176
WIRE 528 272 464 272
WIRE 672 272 672 208
WIRE 672 272 528 272
WIRE 704 272 672 272
WIRE -288 288 -288 272
WIRE 800 336 800 112
WIRE -32 352 -208 352
WIRE 624 352 464 352
WIRE -288 368 -288 352
WIRE -256 368 -288 368
WIRE -32 432 -48 432
WIRE 800 432 800 416
WIRE 800 432 464 432
WIRE 800 448 800 432
WIRE -208 512 -224 512
WIRE -112 512 -128 512
WIRE -32 512 -48 512
WIRE 480 512 464 512
WIRE 800 544 800 528
WIRE -160 592 -224 592
WIRE -32 592 -96 592
WIRE 496 592 464 592
WIRE 592 592 560 592
WIRE 592 608 592 592
WIRE -32 672 -48 672
WIRE 496 672 464 672
WIRE 592 704 592 688
WIRE 496 736 496 672
WIRE 352 752 352 736
WIRE 80 784 80 736
WIRE 112 784 80 784
WIRE 208 784 208 736
WIRE 208 784 192 784
WIRE 240 784 208 784
WIRE 496 832 496 816
WIRE -256 864 -256 368
WIRE 80 864 80 784
WIRE 80 864 -256 864
WIRE 672 864 672 368
WIRE 672 864 80 864
WIRE -400 912 -400 272
WIRE 240 912 -400 912
WIRE 704 912 704 272
WIRE 704 912 320 912
FLAG 656 48 0
FLAG -368 48 0
FLAG 848 224 0
FLAG 800 544 0
FLAG 240 784 0
FLAG 352 752 0
FLAG -224 592 0
FLAG -224 512 0
FLAG -48 672 0
FLAG 944 224 0
FLAG 480 512 0
FLAG 592 704 0
FLAG 496 832 0
FLAG -368 -64 IN
FLAG 944 112 OUT
SYMBOL PowerProducts\\LTC3780 208 352 R0
SYMATTR InstName U1
SYMBOL nmos -208 112 M0
WINDOW 3 38 107 Right 0
WINDOW 0 34 -7 Right 0
SYMATTR Value IRF7831
SYMATTR InstName Q1
SYMBOL schottky 512 0 R0
SYMATTR InstName D1
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky -144 0 R0
SYMATTR InstName D2
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 640 -32 R0
SYMATTR InstName C1
SYMATTR Value 4.7ľ
SYMBOL nmos 624 112 R0
WINDOW 3 39 102 Right 0
WINDOW 0 -3 28 Right 0
SYMATTR Value IRF7831
SYMATTR InstName Q2
SYMBOL nmos 624 272 R0
WINDOW 3 36 101 Right 0
WINDOW 0 -6 30 Right 0
SYMATTR Value IRF7831
SYMATTR InstName Q3
SYMBOL voltage -368 -64 R0
WINDOW 0 23 19 Left 0
WINDOW 3 27 95 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL cap 832 128 R0
SYMATTR InstName C2
SYMATTR Value 100ľ
SYMBOL res 784 432 R0
SYMATTR InstName R1
SYMATTR Value 7.5K
SYMBOL res 784 320 R0
SYMATTR InstName R2
SYMATTR Value 105K
SYMBOL res 96 800 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 10m
SYMBOL cap -144 112 R0
WINDOW 0 33 18 Left 0
WINDOW 3 29 58 Left 0
SYMATTR InstName C3
SYMATTR Value .1ľ
SYMBOL cap 512 112 R0
WINDOW 0 33 18 Left 0
WINDOW 3 29 58 Left 0
SYMATTR InstName C4
SYMATTR Value .1ľ
SYMBOL cap -96 576 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C5
SYMATTR Value .001ľ
SYMBOL cap -48 496 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C6
SYMATTR Value 2200p
SYMBOL res -112 496 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 20K
SYMBOL nmos -208 272 M0
WINDOW 3 38 107 Right 0
WINDOW 0 2 32 Right 0
SYMATTR Value IRF7831
SYMATTR InstName Q4
SYMBOL schottky -272 352 R180
WINDOW 0 39 58 Left 0
WINDOW 3 34 6 Left 0
SYMATTR InstName D3
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 688 192 M180
WINDOW 0 30 64 Left 0
WINDOW 3 23 1 Left 0
SYMATTR InstName D4
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 224 928 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 2ľ
SYMBOL cap 560 576 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C7
SYMATTR Value .01ľ
SYMBOL res 576 592 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL voltage 496 720 R0
WINDOW 3 22 96 Left 0
SYMATTR Value SIN(1 1 250K)
SYMATTR InstName V2
SYMBOL res 928 112 R0
SYMATTR InstName Rload
SYMATTR Value 5
TEXT 752 768 Left 0 !.tran 1.5m startup