Version 4 SHEET 1 1892 1876 WIRE -448 -256 -912 -256 WIRE 32 -256 -352 -256 WIRE 384 -256 112 -256 WIRE 1312 -256 464 -256 WIRE 1424 -256 1312 -256 WIRE 1520 -256 1424 -256 WIRE -912 -240 -912 -256 WIRE 1424 -240 1424 -256 WIRE 1520 -240 1520 -256 WIRE 144 -208 96 -208 WIRE 288 -208 224 -208 WIRE 48 -192 48 -208 WIRE -912 -144 -912 -160 WIRE 1424 -144 1424 -176 WIRE 1520 -144 1520 -160 WIRE -352 -80 -912 -80 WIRE 384 -80 -256 -80 WIRE 1104 -80 464 -80 WIRE 1424 -80 1104 -80 WIRE 1520 -80 1424 -80 WIRE -912 -64 -912 -80 WIRE 1424 -64 1424 -80 WIRE 1520 -64 1520 -80 WIRE -912 32 -912 16 WIRE 1424 32 1424 0 WIRE 1520 32 1520 16 WIRE -256 96 -912 96 WIRE 384 96 -160 96 WIRE 864 96 464 96 WIRE 1424 96 864 96 WIRE 1520 96 1424 96 WIRE -912 112 -912 96 WIRE 1424 112 1424 96 WIRE 1520 112 1520 96 WIRE -912 208 -912 192 WIRE 1424 208 1424 176 WIRE 1520 208 1520 192 WIRE -144 256 -912 256 WIRE -128 256 -144 256 WIRE 384 256 -32 256 WIRE 688 256 464 256 WIRE 1424 256 688 256 WIRE 1520 256 1424 256 WIRE -912 272 -912 256 WIRE 1424 272 1424 256 WIRE 1520 272 1520 256 WIRE -144 336 -144 256 WIRE 112 336 -144 336 WIRE 384 336 112 336 WIRE 432 336 384 336 WIRE 432 352 432 336 WIRE -912 368 -912 352 WIRE 1424 368 1424 336 WIRE 1520 368 1520 352 WIRE 112 400 112 336 WIRE 688 400 688 256 WIRE 432 448 432 432 WIRE 432 448 256 448 WIRE 528 448 432 448 WIRE 640 448 608 448 WIRE 864 496 864 96 WIRE -48 528 -48 304 WIRE -32 528 -48 528 WIRE 688 528 688 480 WIRE 688 528 256 528 WIRE 720 528 688 528 WIRE 816 528 800 528 WIRE 1104 576 1104 -80 WIRE -176 608 -176 144 WIRE -32 608 -176 608 WIRE 864 608 864 576 WIRE 864 608 256 608 WIRE 944 608 864 608 WIRE 1056 608 1024 608 WIRE 1312 656 1312 -256 WIRE -272 688 -272 -32 WIRE -32 688 -272 688 WIRE 1104 688 1104 656 WIRE 1104 688 256 688 WIRE 1168 688 1104 688 WIRE 1264 688 1248 688 WIRE -368 768 -368 -208 WIRE -32 768 -368 768 WIRE 1312 768 1312 736 WIRE 1312 768 256 768 WIRE 1408 768 1312 768 WIRE 1504 768 1488 768 WIRE -128 848 -160 848 WIRE -32 848 -48 848 WIRE 288 848 256 848 WIRE 384 848 384 336 WIRE 384 848 368 848 WIRE -128 928 -160 928 WIRE -32 928 -64 928 WIRE 288 928 256 928 WIRE 384 928 384 848 WIRE 384 928 368 928 WIRE 64 1008 64 992 WIRE 160 1008 160 992 WIRE 64 1088 64 1072 FLAG 160 1008 0 FLAG -160 928 0 FLAG 64 1088 0 FLAG -160 848 0 FLAG -912 368 0 FLAG -912 -144 0 FLAG 1424 -144 0 FLAG 1520 -144 0 FLAG 640 448 0 FLAG 816 528 0 FLAG 1056 608 0 FLAG 1264 688 0 FLAG 1504 768 0 FLAG 1424 32 0 FLAG 1520 32 0 FLAG 1424 208 0 FLAG 1520 208 0 FLAG 1424 368 0 FLAG 1520 368 0 FLAG -912 32 0 FLAG -912 208 0 FLAG 1520 256 OUT1 FLAG 1520 96 OUT2 FLAG 1520 -80 OUT3 FLAG 1520 -256 OUT4 FLAG 48 -192 0 FLAG 288 -208 0 FLAG -912 256 IN SYMBOL LTC2924 112 688 R0 SYMATTR InstName U1 SYMBOL cap 1408 -240 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL res 1504 -256 R0 SYMATTR InstName R1 SYMATTR Value 16 SYMBOL cap -64 912 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 150n SYMBOL cap 48 1008 R0 SYMATTR InstName C3 SYMATTR Value 150n SYMBOL res -32 832 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 49.9K SYMBOL res 384 832 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL voltage -912 256 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR Value PWL(0 0 20u 5 140m 5 144m 0 192m 5) SYMATTR InstName V1 SYMBOL voltage -912 -80 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V3 SYMATTR Value 3.3 SYMBOL voltage -912 -256 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V4 SYMATTR Value 1 SYMBOL res 384 912 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL res 416 336 R0 SYMATTR InstName R15 SYMATTR Value 52.3K SYMBOL res 624 432 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R19 SYMATTR Value 11.8K SYMBOL res 672 384 R0 SYMATTR InstName R16 SYMATTR Value 52.3K SYMBOL res 816 512 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 11.8K SYMBOL res 848 480 R0 SYMATTR InstName R18 SYMATTR Value 45.3K SYMBOL res 1040 592 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R20 SYMATTR Value 7.68K SYMBOL res 1088 560 R0 SYMATTR InstName R21 SYMATTR Value 6.04K SYMBOL res 1264 672 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R22 SYMATTR Value 1.69K SYMBOL res 1296 640 R0 SYMATTR InstName R5 SYMATTR Value 1.62K SYMBOL res 1504 752 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 3.09K SYMBOL cap 1408 -64 R0 SYMATTR InstName C4 SYMATTR Value 10µ SYMBOL res 1504 -80 R0 SYMATTR InstName R7 SYMATTR Value 8 SYMBOL cap 1408 112 R0 SYMATTR InstName C5 SYMATTR Value 10µ SYMBOL res 1504 96 R0 SYMATTR InstName R8 SYMATTR Value 8 SYMBOL cap 1408 272 R0 SYMATTR InstName C6 SYMATTR Value 10µ SYMBOL res 1504 256 R0 SYMATTR InstName R9 SYMATTR Value 8 SYMBOL voltage -912 96 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL res 480 -272 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 0.01 SYMBOL res 480 -96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R11 SYMATTR Value 0.01 SYMBOL res 480 80 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 0.01 SYMBOL res 480 240 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R13 SYMATTR Value 0.01 SYMBOL sw 16 -256 R270 WINDOW 0 38 56 VTop 2 WINDOW 3 17 88 VRight 2 SYMATTR InstName S2 SYMATTR Value Switch SYMBOL voltage 128 -208 R270 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 0 31 87 VRight 2 WINDOW 3 -72 -168 VRight 2 SYMATTR InstName V6 SYMATTR Value PULSE(1 0 360m 1u 1u 1200m 1400m) SYMBOL nmos -128 304 R270 WINDOW 0 54 51 VTop 2 WINDOW 3 19 89 VRight 2 SYMATTR InstName M1 SYMATTR Value AO6408 SYMBOL nmos -256 144 R270 WINDOW 0 54 51 VTop 2 WINDOW 3 19 89 VRight 2 SYMATTR InstName M2 SYMATTR Value AO6408 SYMBOL nmos -352 -32 R270 WINDOW 0 54 51 VTop 2 WINDOW 3 19 89 VRight 2 SYMATTR InstName M3 SYMATTR Value AO6408 SYMBOL nmos -448 -208 R270 WINDOW 0 54 51 VTop 2 WINDOW 3 19 89 VRight 2 SYMATTR InstName M4 SYMATTR Value AO6408 TEXT 568 840 Left 2 !.tran 500ms startup TEXT 560 928 Left 2 !.model Switch SW(Ron=0.01 Roff=100 Vt=0.5 Vh=-0.4)