Version 4
SHEET 1 2124 772
WIRE 16 -144 16 -208
WIRE 224 -144 16 -144
WIRE 224 -96 224 -144
WIRE 1632 -80 1552 -80
WIRE 1712 -80 1632 -80
WIRE 2032 -80 1712 -80
WIRE 592 -64 560 -64
WIRE 768 -64 656 -64
WIRE 896 -64 848 -64
WIRE 976 -64 896 -64
WIRE 1120 -64 1056 -64
WIRE 1328 -64 1200 -64
WIRE 1632 -64 1632 -80
WIRE 1712 -64 1712 -80
WIRE 2032 -32 2032 -80
WIRE 16 16 16 -144
WIRE 224 32 224 -16
WIRE 304 32 224 32
WIRE 352 32 304 32
WIRE 1920 48 1840 48
WIRE 1984 48 1920 48
WIRE 1712 64 1712 16
WIRE 1776 64 1712 64
WIRE 224 80 224 32
WIRE 304 96 304 32
WIRE 800 96 800 48
WIRE 1008 96 1008 48
WIRE 1632 96 1632 16
WIRE 1776 96 1632 96
WIRE 896 112 896 -64
WIRE 896 112 832 112
WIRE 2032 112 2032 64
WIRE 560 128 560 -64
WIRE 768 128 560 128
WIRE 896 144 832 144
WIRE 992 144 896 144
WIRE 1152 144 1088 144
WIRE 1632 160 1632 96
WIRE 1712 176 1712 64
WIRE 16 192 16 96
WIRE 96 192 16 192
WIRE 224 192 224 160
WIRE 224 192 96 192
WIRE 304 192 304 160
WIRE 304 192 224 192
WIRE 1920 192 1920 48
WIRE 1984 192 1920 192
WIRE 800 208 800 160
WIRE 96 224 96 192
WIRE 896 240 896 144
WIRE 1632 272 1632 240
WIRE 1712 272 1712 256
WIRE 1712 272 1632 272
WIRE 2032 272 2032 208
WIRE 2032 272 1712 272
WIRE 1632 288 1632 272
WIRE 896 352 896 320
FLAG 96 224 0
FLAG 16 -208 Vcc
FLAG 352 32 Vref
FLAG 800 48 Vcc
FLAG 800 208 0
FLAG 896 352 0
FLAG 1008 48 Vref
FLAG 1152 144 Vref
FLAG 1328 -64 0
FLAG 1632 288 0
FLAG 1552 -80 Vcc
SYMBOL voltage 16 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 2.5 120u 20u 1n 3m 3.140m)
SYMBOL res 208 -112 R0
SYMATTR InstName R1
SYMATTR Value 4k
SYMBOL res 208 64 R0
SYMATTR InstName R2
SYMATTR Value 4k
SYMBOL Opamps\\LT6220 800 128 M0
SYMATTR InstName U1
SYMBOL res 1072 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 864 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL cap 656 -80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap 288 96 R0
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL nmos 1088 96 R90
SYMATTR InstName M1
SYMATTR Value irf5802
SYMATTR Prefix X
SYMBOL res 880 224 R0
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL voltage 1104 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL Digital\\schmitt 1776 0 R0
SYMATTR InstName A1
SYMBOL res 1616 -80 R0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res 1616 144 R0
SYMATTR InstName R7
SYMATTR Value 10k
SYMBOL voltage 1712 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 2
SYMBOL current 1712 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName I1
SYMATTR Value 10µ
SYMBOL nmos 1984 112 R0
SYMATTR InstName M2
SYMBOL pmos 1984 -32 R0
SYMATTR InstName M3
TEXT 768 -336 Left 2 !.lib C:\\Program Files (x86)\\LTC\\LTspiceIV\\lib\\sym\\buck\\irf5802.spi
TEXT -18 376 Left 2 !.tran 300u uic