Version 4 SHEET 1 1228 964 WIRE -240 -400 -480 -400 WIRE 32 -400 -240 -400 WIRE 560 -400 32 -400 WIRE -480 -384 -480 -400 WIRE 176 -384 -160 -384 WIRE 448 -384 176 -384 WIRE 480 -384 448 -384 WIRE -64 -368 -352 -368 WIRE 416 -368 -64 -368 WIRE 480 -368 480 -384 WIRE -352 -352 -352 -368 WIRE 32 -352 32 -400 WIRE 176 -352 176 -384 WIRE -480 -288 -480 -304 WIRE -64 -288 -64 -368 WIRE -48 -288 -64 -288 WIRE 416 -288 416 -368 WIRE 416 -288 400 -288 WIRE 480 -288 480 -304 WIRE -352 -256 -352 -272 WIRE 448 -208 448 -384 WIRE 1104 -208 448 -208 WIRE -240 -176 -240 -400 WIRE 560 -176 560 -400 WIRE -48 -96 -192 -96 WIRE 512 -96 400 -96 WIRE -160 -80 -160 -384 WIRE 448 -80 448 -208 WIRE -160 0 -160 -16 WIRE -48 0 -160 0 WIRE 448 0 448 -16 WIRE 448 0 400 0 WIRE -160 16 -160 0 WIRE 448 16 448 0 WIRE -656 96 -768 96 WIRE -608 96 -656 96 WIRE -512 96 -608 96 WIRE -496 96 -512 96 WIRE -400 96 -416 96 WIRE -368 96 -400 96 WIRE -240 96 -240 -80 WIRE -240 96 -288 96 WIRE -160 96 -160 80 WIRE -160 96 -240 96 WIRE -48 96 -160 96 WIRE 448 96 448 80 WIRE 448 96 400 96 WIRE 560 96 560 -80 WIRE 560 96 448 96 WIRE 608 96 560 96 WIRE 720 96 688 96 WIRE 736 96 720 96 WIRE 832 96 816 96 WIRE 880 96 832 96 WIRE 944 96 880 96 WIRE 992 96 944 96 WIRE -768 112 -768 96 WIRE -240 112 -240 96 WIRE 560 112 560 96 WIRE 992 112 992 96 WIRE -608 128 -608 96 WIRE 880 128 880 96 WIRE -48 192 -192 192 WIRE 512 192 400 192 WIRE -768 208 -768 192 WIRE -608 208 -608 192 WIRE 880 208 880 192 WIRE 992 208 992 192 WIRE -240 224 -240 208 WIRE 560 224 560 208 WIRE -400 288 -400 96 WIRE -48 288 -400 288 WIRE 720 288 720 96 WIRE 720 288 400 288 WIRE -656 384 -656 96 WIRE -512 384 -512 96 WIRE -48 384 -512 384 WIRE 832 384 832 96 WIRE 832 384 400 384 WIRE 944 384 944 96 WIRE -656 480 -656 464 WIRE -48 480 -656 480 WIRE 944 480 944 464 WIRE 944 480 400 480 WIRE -656 496 -656 480 WIRE 944 496 944 480 WIRE -160 576 -208 576 WIRE -48 576 -96 576 WIRE 432 576 400 576 WIRE 544 576 496 576 WIRE -656 592 -656 576 WIRE 944 592 944 576 WIRE -160 672 -208 672 WIRE -48 672 -96 672 WIRE 432 672 400 672 WIRE 544 672 496 672 WIRE 1104 768 1104 -208 WIRE 1104 768 400 768 WIRE 32 944 32 928 WIRE 176 944 176 928 WIRE 320 944 320 928 FLAG -480 -288 0 FLAG 32 944 0 FLAG 320 944 0 FLAG 560 224 0 FLAG 480 -288 0 FLAG 880 208 0 FLAG 944 592 0 FLAG 992 208 0 FLAG 544 576 0 FLAG 544 672 0 FLAG -240 224 0 FLAG -608 208 0 FLAG -656 592 0 FLAG -768 208 0 FLAG -208 576 0 FLAG -208 672 0 FLAG -352 -256 0 FLAG -480 -400 IN FLAG -352 -368 RUN FLAG 992 96 OUT2 FLAG -768 96 OUT1 SYMBOL voltage -480 -400 R0 SYMATTR InstName V1 SYMATTR Value 48 SYMBOL nmos 512 -176 R0 SYMATTR InstName Q1 SYMATTR Value Si4896DY SYMBOL nmos 512 112 R0 SYMATTR InstName Q2 SYMATTR Value Si4896DY SYMBOL diode 432 -80 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL cap 464 -368 R0 SYMATTR InstName C1 SYMATTR Value 4.7µ SYMBOL cap 432 16 R0 SYMATTR InstName C2 SYMATTR Value .1µ SYMBOL ind 592 112 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 7.2µ SYMBOL res 720 112 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 7m SYMBOL cap 864 128 R0 SYMATTR InstName C3 SYMATTR Value 150µ SYMBOL res 928 368 R0 SYMATTR InstName R2 SYMATTR Value 280K SYMBOL res 928 480 R0 SYMATTR InstName R3 SYMATTR Value 20K SYMBOL cap 432 592 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 4 32 VBottom 2 WINDOW 39 -18 36 VBottom 2 SYMATTR InstName C4 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL cap 432 688 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C5 SYMATTR Value .001µ SYMBOL nmos -192 -176 M0 SYMATTR InstName Q3 SYMATTR Value Si4896DY SYMBOL nmos -192 112 M0 SYMATTR InstName Q4 SYMATTR Value Si4896DY SYMBOL diode -176 -80 R0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL cap -176 16 R0 SYMATTR InstName C6 SYMATTR Value .1µ SYMBOL ind -272 112 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value 7.2µ SYMBOL res -400 112 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R4 SYMATTR Value 7m SYMBOL cap -624 128 R0 SYMATTR InstName C7 SYMATTR Value 150µ SYMBOL res -672 368 R0 SYMATTR InstName R5 SYMATTR Value 62.5K SYMBOL res -672 480 R0 SYMATTR InstName R6 SYMATTR Value 20K SYMBOL cap -96 592 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -22 36 VBottom 2 SYMATTR InstName C8 SYMATTR Value 220p SYMATTR SpiceLine Rser=15K SYMBOL cap -96 688 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C9 SYMATTR Value .001µ SYMBOL voltage -352 -368 R0 SYMATTR InstName V2 SYMATTR Value 5 SYMBOL PowerProducts\\LTC3890 176 288 R0 SYMATTR InstName U1 SYMBOL res -784 96 R0 SYMATTR InstName Rload1 SYMATTR Value .67 SYMBOL res 976 96 R0 SYMATTR InstName Rload2 SYMATTR Value 3.4 TEXT 656 848 Left 2 !.tran 1m startup