Version 4
SHEET 1 1564 756
WIRE -128 -64 -176 -64
WIRE -240 -48 -272 -48
WIRE -176 -48 -176 -64
WIRE -176 -48 -240 -48
WIRE -128 -48 -128 -64
WIRE 0 -48 -80 -48
WIRE 48 -48 0 -48
WIRE 144 -48 48 -48
WIRE 336 -48 224 -48
WIRE 400 -48 336 -48
WIRE 432 -48 400 -48
WIRE -272 -16 -272 -48
WIRE 48 -16 48 -48
WIRE 336 -16 336 -48
WIRE 432 -16 432 -48
WIRE -128 32 -128 0
WIRE 0 32 -32 32
WIRE 64 32 48 32
WIRE -32 80 -32 32
WIRE 64 80 64 32
WIRE 64 80 48 80
WIRE -272 96 -272 64
WIRE 48 96 48 80
WIRE 336 96 336 48
WIRE 432 96 432 64
WIRE -32 128 -32 80
WIRE -32 128 -80 128
WIRE 608 128 592 128
WIRE 624 128 608 128
WIRE 960 160 944 160
WIRE 976 160 960 160
WIRE 96 176 -16 176
WIRE 144 176 96 176
WIRE 208 176 144 176
WIRE 320 176 208 176
WIRE 432 176 320 176
WIRE 832 176 656 176
WIRE 496 192 480 192
WIRE 528 192 496 192
WIRE 752 208 656 208
WIRE 832 208 832 176
WIRE 896 208 832 208
WIRE 1024 208 1008 208
WIRE 1056 208 1024 208
WIRE -80 224 -80 128
WIRE 368 224 368 208
WIRE 480 224 480 192
WIRE 1056 240 1056 208
WIRE 96 272 -16 272
WIRE 144 272 96 272
WIRE 208 272 144 272
WIRE 320 272 208 272
WIRE 432 272 320 272
WIRE 144 288 144 272
WIRE 528 288 528 192
WIRE 656 288 528 288
WIRE 800 288 736 288
WIRE 1056 352 1056 320
WIRE 656 368 528 368
WIRE 752 368 752 208
WIRE 752 368 736 368
WIRE 832 368 832 208
WIRE 912 368 832 368
WIRE 96 384 -16 384
WIRE 144 384 96 384
WIRE 208 384 144 384
WIRE 320 384 208 384
WIRE 608 400 592 400
WIRE 624 400 608 400
WIRE -128 432 -128 32
WIRE -80 432 -128 432
WIRE 464 432 368 432
WIRE 528 432 528 368
WIRE 528 432 464 432
WIRE 864 432 848 432
WIRE 880 432 864 432
WIRE 800 448 800 288
WIRE 800 448 656 448
WIRE 528 464 528 432
WIRE 96 480 -16 480
WIRE 144 480 96 480
WIRE 208 480 144 480
WIRE 320 480 208 480
WIRE 656 480 640 480
WIRE 800 480 656 480
WIRE 912 480 912 368
WIRE 144 496 144 480
FLAG -272 96 0
FLAG 48 96 0
FLAG 336 96 0
FLAG 432 96 0
FLAG 1056 352 0
FLAG -240 -48 VDD
FLAG 0 -48 sw
FLAG 400 -48 out
FLAG -128 32 g1
FLAG -32 80 g2
FLAG 144 288 0
FLAG 144 496 0
FLAG 144 176 VDD
FLAG 144 384 VDD
FLAG 608 256 0
FLAG 608 528 0
FLAG 608 128 VDD
FLAG 608 400 VDD
FLAG 864 432 VDD
FLAG 864 528 0
FLAG 464 432 g1in
FLAG 496 192 g2inv
FLAG 368 208 g2in
FLAG 960 160 VDD
FLAG 960 256 0
FLAG 1024 208 pwm
SYMBOL 5827\\pmos_035 -176 0 R270
SYMATTR InstName M1
SYMATTR Value2 W=20000u
SYMBOL 5827\\nmos_035 0 -16 R0
SYMATTR InstName M2
SYMATTR Value2 W=10000u
SYMBOL voltage -272 -32 R0
SYMATTR InstName Vg
SYMATTR Value 3.3V
SYMBOL ind 128 -32 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 5 56 VBottom 0
SYMATTR InstName L1
SYMATTR Value 2µH
SYMBOL cap 320 -16 R0
SYMATTR InstName C1
SYMATTR Value 10µF
SYMBOL res 416 -32 R0
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL voltage 1056 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 320 224 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X1
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 208 224 M0
WINDOW 39 -64 23 Left 0
SYMATTR InstName X2
SYMATTR SpiceLine x=4
SYMBOL inverter_035_x 96 224 M0
WINDOW 39 -77 22 Left 0
SYMATTR InstName X3
SYMATTR SpiceLine x=20
SYMBOL inverter_035_x -16 224 M0
WINDOW 39 -88 24 Left 0
SYMATTR InstName X4
SYMATTR SpiceLine x=100
SYMBOL inverter_035_x 320 432 M0
WINDOW 39 -66 32 Left 0
SYMATTR InstName X5
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 208 432 M0
WINDOW 39 -78 30 Left 0
SYMATTR InstName X6
SYMATTR SpiceLine x=8
SYMBOL inverter_035_x 96 432 M0
WINDOW 39 -87 24 Left 0
SYMATTR InstName X7
SYMATTR SpiceLine x=40
SYMBOL inverter_035_x -16 432 M0
WINDOW 39 -97 24 Left 0
SYMATTR InstName X8
SYMATTR SpiceLine x=200
SYMBOL nand_035_1 592 192 M0
SYMATTR InstName X9
SYMBOL nand_035_1 592 464 M0
SYMATTR InstName X10
SYMBOL res 752 272 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 1meg
SYMBOL res 752 352 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 1meg
SYMBOL inverter_035_x 432 224 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X11
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 864 480 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X12
SYMATTR SpiceLine x=1
SYMBOL inverter_035_x 960 208 M0
WINDOW 39 -65 20 Left 0
SYMATTR InstName X13
SYMATTR SpiceLine x=1
TEXT -40 -160 Left 0 ;ECEN5827 open-loop buck converter example
TEXT -424 -128 Left 0 !.lib 5827_035.lib
TEXT -432 -160 Left 0 !.tran 0 100u 0 100n