Version 4 SHEET 1 2172 952 WIRE -224 -336 -560 -336 WIRE -128 -336 -144 -336 WIRE -112 -336 -128 -336 WIRE 1232 -336 -16 -336 WIRE 1440 -336 1232 -336 WIRE 1520 -336 1440 -336 WIRE -560 -320 -560 -336 WIRE 1232 -320 1232 -336 WIRE 1520 -320 1520 -336 WIRE 1584 -304 1568 -304 WIRE 1616 -256 1568 -256 WIRE 1232 -240 1232 -256 WIRE 1616 -240 1616 -256 WIRE -560 -224 -560 -240 WIRE 1520 -224 1520 -240 WIRE 64 -192 -560 -192 WIRE 160 -192 144 -192 WIRE 176 -192 160 -192 WIRE 1152 -192 272 -192 WIRE 1216 -192 1152 -192 WIRE 1312 -192 1216 -192 WIRE -560 -176 -560 -192 WIRE 1312 -176 1312 -192 WIRE 1216 -160 1216 -192 WIRE 1616 -144 1616 -160 WIRE -560 -80 -560 -96 WIRE 1216 -80 1216 -96 WIRE 1312 -80 1312 -96 WIRE 352 -48 -560 -48 WIRE 448 -48 432 -48 WIRE 464 -48 448 -48 WIRE 768 -48 560 -48 WIRE 816 -48 768 -48 WIRE 912 -48 816 -48 WIRE 1008 -48 912 -48 WIRE -560 -32 -560 -48 WIRE 816 -32 816 -48 WIRE 1008 -32 1008 -48 WIRE 912 -16 912 -48 WIRE -224 32 -224 -336 WIRE -128 32 -128 -336 WIRE -32 32 -32 -288 WIRE 64 32 64 -192 WIRE 160 32 160 -192 WIRE 256 32 256 -144 WIRE 352 32 352 -48 WIRE 448 32 448 -48 WIRE 544 32 544 0 WIRE -560 64 -560 48 WIRE 816 64 816 48 WIRE 816 64 656 64 WIRE 1152 64 1152 -192 WIRE 1152 64 1056 64 WIRE 1440 64 1440 -336 WIRE 1440 64 1328 64 WIRE 816 80 816 64 WIRE 912 80 912 48 WIRE 1008 80 1008 48 WIRE 656 96 656 64 WIRE 656 96 608 96 WIRE 1152 96 1152 64 WIRE 656 160 608 160 WIRE 768 160 768 -48 WIRE 768 160 736 160 WIRE -288 176 -352 176 WIRE 816 176 816 160 WIRE 1152 208 1152 176 WIRE 1152 208 944 208 WIRE 944 224 944 208 WIRE 944 224 608 224 WIRE 1152 224 1152 208 WIRE 1440 240 1440 64 WIRE 656 288 608 288 WIRE 1056 288 1056 64 WIRE 1056 288 736 288 WIRE 1152 320 1152 304 WIRE -352 336 -352 176 WIRE -288 336 -352 336 WIRE -352 352 -352 336 WIRE 1440 352 1440 320 WIRE 1440 352 608 352 WIRE 1440 368 1440 352 WIRE 656 416 608 416 WIRE 1328 416 1328 64 WIRE 1328 416 736 416 WIRE -352 432 -352 416 WIRE 1440 464 1440 448 WIRE -224 496 -224 480 WIRE 32 496 32 480 WIRE 288 496 288 480 WIRE 32 576 32 560 WIRE 288 576 288 560 FLAG -224 496 0 FLAG -352 432 0 FLAG 32 576 0 FLAG 288 576 0 FLAG -560 -224 0 FLAG 1520 -336 OUT1 FLAG -560 -80 0 FLAG -560 64 0 FLAG 1616 -144 0 FLAG 1584 -304 0 FLAG 1232 -240 0 FLAG 1520 -224 0 FLAG 1312 -192 OUT2 FLAG 1008 -48 OUT3 FLAG 1008 80 0 FLAG 1312 -80 0 FLAG 1216 -80 0 FLAG 912 80 0 FLAG 816 176 0 FLAG 1152 320 0 FLAG 1440 464 0 SYMBOL LTC4230 160 256 R0 SYMATTR InstName U1 SYMBOL cap -368 352 R0 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL cap 16 496 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL cap 272 496 R0 SYMATTR InstName C3 SYMATTR Value 15p SYMBOL voltage -560 -336 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 3 47 58 Left 2 SYMATTR Value PWL(0 0 100u 3.3) SYMATTR InstName V1 SYMBOL res -128 -352 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 7m SYMBOL nmos -112 -288 R270 WINDOW 0 72 48 VRight 2 WINDOW 3 22 100 VRight 2 SYMATTR InstName Q1 SYMATTR Value IRF7413 SYMBOL res 160 -208 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value 7m SYMBOL nmos 176 -144 R270 WINDOW 0 72 48 VRight 2 WINDOW 3 22 100 VRight 2 SYMATTR InstName Q2 SYMATTR Value IRF7413 SYMBOL res 448 -64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 7m SYMBOL nmos 464 0 R270 WINDOW 0 72 48 VRight 2 WINDOW 3 22 100 VRight 2 SYMATTR InstName Q3 SYMATTR Value IRF7413 SYMBOL sw 1520 -336 M0 WINDOW 0 -14 10 Right 2 WINDOW 3 -17 104 Right 2 SYMATTR InstName S1 SYMATTR Value SL SYMBOL cap 1216 -320 R0 SYMATTR InstName C4 SYMATTR Value 1m SYMBOL voltage 1616 -256 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 1 100m 100n 100n 40u 1) SYMBOL voltage -560 -192 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 WINDOW 3 41 56 Left 2 SYMATTR Value PWL(0 0 100u 2.5) SYMATTR InstName V3 SYMBOL voltage -560 -48 R0 SYMATTR InstName V4 SYMATTR Value PWL(0 0 100u 1.8) SYMBOL cap 1200 -160 R0 SYMATTR InstName C5 SYMATTR Value 100µ SYMBOL cap 896 -16 R0 SYMATTR InstName C6 SYMATTR Value 100µ SYMBOL res 800 -48 R0 SYMATTR InstName R4 SYMATTR Value 5.1K SYMBOL res 800 64 R0 SYMATTR InstName R5 SYMATTR Value 12K SYMBOL res 752 144 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 10K SYMBOL res 1136 80 R0 SYMATTR InstName R7 SYMATTR Value 11K SYMBOL res 1136 208 R0 SYMATTR InstName R8 SYMATTR Value 12K SYMBOL res 752 272 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 10K SYMBOL res 1424 224 R0 SYMATTR InstName R10 SYMATTR Value 18K SYMBOL res 1424 352 R0 SYMATTR InstName R11 SYMATTR Value 12K SYMBOL res 752 400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 10K SYMBOL res 1296 -192 R0 SYMATTR InstName Rload2 SYMATTR Value 2 SYMBOL res 992 -48 R0 SYMATTR InstName Rload3 SYMATTR Value 2 TEXT 800 480 Left 2 !.tran 400m\n.model SL SW(Ron=300m Roff=2 Vt=.5 Vh=-.3) TEXT -648 144 Left 2 ;Configured for Autoretry