Version 4
SHEET 1 1564 756
WIRE -336 -64 -384 -64
WIRE -448 -48 -480 -48
WIRE -384 -48 -384 -64
WIRE -384 -48 -448 -48
WIRE -336 -48 -336 -64
WIRE -208 -48 -288 -48
WIRE -160 -48 -208 -48
WIRE -64 -48 -160 -48
WIRE 128 -48 16 -48
WIRE 192 -48 128 -48
WIRE 224 -48 192 -48
WIRE -480 -16 -480 -48
WIRE -160 -16 -160 -48
WIRE 128 -16 128 -48
WIRE 224 -16 224 -48
WIRE -336 32 -336 0
WIRE -208 32 -240 32
WIRE -144 32 -160 32
WIRE -240 80 -240 32
WIRE -144 80 -144 32
WIRE -144 80 -160 80
WIRE -480 96 -480 64
WIRE -160 96 -160 80
WIRE 128 96 128 48
WIRE 224 96 224 64
WIRE -240 128 -240 80
WIRE -240 128 -288 128
WIRE 400 128 384 128
WIRE 416 128 400 128
WIRE 752 160 736 160
WIRE 768 160 752 160
WIRE -112 176 -224 176
WIRE -64 176 -112 176
WIRE 0 176 -64 176
WIRE 112 176 0 176
WIRE 224 176 112 176
WIRE 624 176 448 176
WIRE 288 192 272 192
WIRE 320 192 288 192
WIRE 544 208 448 208
WIRE 624 208 624 176
WIRE 688 208 624 208
WIRE 816 208 800 208
WIRE 848 208 816 208
WIRE -288 224 -288 128
WIRE 160 224 160 208
WIRE 272 224 272 192
WIRE 848 240 848 208
WIRE -112 272 -224 272
WIRE -64 272 -112 272
WIRE 0 272 -64 272
WIRE 112 272 0 272
WIRE 224 272 112 272
WIRE -64 288 -64 272
WIRE 320 288 320 192
WIRE 448 288 320 288
WIRE 592 288 528 288
WIRE 848 352 848 320
WIRE 448 368 320 368
WIRE 544 368 544 208
WIRE 544 368 528 368
WIRE 624 368 624 208
WIRE 704 368 624 368
WIRE -112 384 -224 384
WIRE -64 384 -112 384
WIRE 0 384 -64 384
WIRE 112 384 0 384
WIRE 400 400 384 400
WIRE 416 400 400 400
WIRE -336 432 -336 32
WIRE -288 432 -336 432
WIRE 256 432 160 432
WIRE 320 432 320 368
WIRE 320 432 256 432
WIRE 656 432 640 432
WIRE 672 432 656 432
WIRE 592 448 592 288
WIRE 592 448 448 448
WIRE 320 464 320 432
WIRE -112 480 -224 480
WIRE -64 480 -112 480
WIRE 0 480 -64 480
WIRE 112 480 0 480
WIRE 448 480 432 480
WIRE 592 480 448 480
WIRE 704 480 704 368
WIRE -64 496 -64 480
FLAG -480 96 0
FLAG -160 96 0
FLAG 128 96 0
FLAG 224 96 0
FLAG 848 352 0
FLAG -448 -48 VDD
FLAG -208 -48 sw
FLAG 192 -48 out
FLAG -336 32 g1
FLAG -240 80 g2
FLAG -64 288 0
FLAG -64 496 0
FLAG -64 176 VDD
FLAG -64 384 VDD
FLAG 400 256 0
FLAG 400 528 0
FLAG 400 128 VDD
FLAG 400 400 VDD
FLAG 656 432 VDD
FLAG 656 528 0
FLAG 256 432 g1in
FLAG 288 192 g2inv
FLAG 160 208 g2in
FLAG 752 160 VDD
FLAG 752 256 0
FLAG 816 208 pwm
SYMBOL 5827\\pmos_035 -384 0 R270
SYMATTR InstName M1
SYMATTR Value2 W=20000u
SYMBOL 5827\\nmos_035 -208 -16 R0
SYMATTR InstName M2
SYMATTR Value2 W=10000u
SYMBOL voltage -480 -32 R0
SYMATTR InstName Vg
SYMATTR Value 3.3V
SYMBOL ind -80 -32 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 2µH
SYMBOL cap 112 -16 R0
SYMATTR InstName C1
SYMATTR Value 10µF
SYMBOL res 208 -32 R0
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL voltage 848 224 R0
WINDOW 3 -116 177 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName Vpwm
SYMATTR Value PULSE(0 3.3 0 0.1n 0.1n 460ns 1u)
SYMBOL inverter_035_x 112 224 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X1
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 0 224 M0
WINDOW 39 -64 23 Left 0
SYMATTR InstName X2
SYMATTR SpiceLine x=4
SYMBOL inverter_035_x -112 224 M0
WINDOW 39 -77 22 Left 0
SYMATTR InstName X3
SYMATTR SpiceLine x=20
SYMBOL inverter_035_x -224 224 M0
WINDOW 39 -88 24 Left 0
SYMATTR InstName X4
SYMATTR SpiceLine x=100
SYMBOL inverter_035_x 112 432 M0
WINDOW 39 -66 32 Left 0
SYMATTR InstName X5
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 0 432 M0
WINDOW 39 -78 30 Left 0
SYMATTR InstName X6
SYMATTR SpiceLine x=8
SYMBOL inverter_035_x -112 432 M0
WINDOW 39 -87 24 Left 0
SYMATTR InstName X7
SYMATTR SpiceLine x=40
SYMBOL inverter_035_x -224 432 M0
WINDOW 39 -97 24 Left 0
SYMATTR InstName X8
SYMATTR SpiceLine x=200
SYMBOL nand_035_1 384 192 M0
SYMATTR InstName X9
SYMBOL nand_035_1 384 464 M0
SYMATTR InstName X10
SYMBOL res 544 272 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 1meg
SYMBOL res 544 352 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 1meg
SYMBOL inverter_035_x 224 224 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X11
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 656 480 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X12
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 752 208 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X13
SYMATTR SpiceLine x=1
TEXT -248 -160 Left 0 ;ECEN5827 open-loop buck converter example
TEXT -632 -128 Left 0 !.lib 5827_035.lib
TEXT -640 -160 Left 0 !.tran 0 100u 0 100n