Version 4 SHEET 1 1084 1028 WIRE -176 -144 -272 -144 WIRE -96 -144 -176 -144 WIRE 64 -144 -96 -144 WIRE 192 -144 64 -144 WIRE 320 -144 192 -144 WIRE 464 -144 320 -144 WIRE -272 -128 -272 -144 WIRE -96 -128 -96 -144 WIRE 192 -128 192 -144 WIRE 320 -112 320 -144 WIRE -272 -32 -272 -48 WIRE 64 -32 64 -144 WIRE 192 -32 192 -48 WIRE -176 32 -176 -144 WIRE -32 32 -176 32 WIRE 464 32 464 -144 WIRE 464 32 288 32 WIRE -96 128 -96 -64 WIRE -32 128 -96 128 WIRE 320 128 320 -48 WIRE 320 128 288 128 WIRE -176 224 -176 32 WIRE -32 224 -176 224 WIRE 464 224 464 32 WIRE 464 224 288 224 WIRE -176 240 -176 224 WIRE 464 240 464 224 WIRE -32 320 -128 320 WIRE 416 320 288 320 WIRE -96 336 -96 128 WIRE 320 336 320 128 WIRE -448 416 -576 416 WIRE -368 416 -448 416 WIRE -320 416 -368 416 WIRE -288 416 -320 416 WIRE -176 416 -176 336 WIRE -176 416 -208 416 WIRE -96 416 -96 400 WIRE -96 416 -176 416 WIRE -32 416 -96 416 WIRE 320 416 320 400 WIRE 320 416 288 416 WIRE 464 416 464 336 WIRE 464 416 320 416 WIRE 496 416 464 416 WIRE 608 416 576 416 WIRE 704 416 608 416 WIRE 800 416 704 416 WIRE -576 432 -576 416 WIRE -448 432 -448 416 WIRE -176 432 -176 416 WIRE 464 432 464 416 WIRE 704 432 704 416 WIRE 800 432 800 416 WIRE 608 480 608 416 WIRE -320 496 -320 416 WIRE -32 512 -128 512 WIRE 416 512 288 512 WIRE -576 528 -576 512 WIRE -448 528 -448 496 WIRE 704 528 704 496 WIRE 800 528 800 512 WIRE -176 544 -176 528 WIRE 464 544 464 528 WIRE -320 608 -320 576 WIRE -32 608 -320 608 WIRE 608 608 608 560 WIRE 608 608 288 608 WIRE -320 640 -320 608 WIRE 608 640 608 608 WIRE -160 704 -192 704 WIRE -32 704 -96 704 WIRE 336 704 288 704 WIRE 448 704 400 704 WIRE -320 736 -320 720 WIRE 608 736 608 720 WIRE -368 800 -368 416 WIRE -32 800 -48 800 WIRE 304 800 288 800 WIRE -368 896 -368 880 WIRE -32 896 -368 896 WIRE 336 896 288 896 WIRE 448 896 400 896 WIRE -368 912 -368 896 WIRE 64 976 64 960 WIRE 192 976 192 960 WIRE -368 1008 -368 992 FLAG 704 528 0 FLAG 608 736 0 FLAG -448 528 0 FLAG -320 736 0 FLAG -272 -32 0 FLAG -368 1008 0 FLAG 800 528 0 FLAG -576 528 0 FLAG 800 416 OUT2 FLAG -576 416 OUT1 FLAG -272 -144 IN FLAG -176 544 0 FLAG 64 976 0 FLAG 192 976 0 FLAG -192 704 0 FLAG -48 800 0 FLAG 464 544 0 FLAG 448 704 0 FLAG 448 896 0 SYMBOL cap 688 432 R0 SYMATTR SpiceLine Rser=5m SYMATTR InstName C1 SYMATTR Value 100µ SYMBOL res 592 464 R0 SYMATTR InstName R1 SYMATTR Value 59K SYMBOL res 592 624 R0 SYMATTR InstName R2 SYMATTR Value 59K SYMBOL nmos -128 240 M0 SYMATTR InstName Q3 SYMATTR Value Si4866DY SYMBOL ind -192 432 M270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .47µ SYMBOL res -336 480 R0 SYMATTR InstName R4 SYMATTR Value 118K SYMBOL res -336 624 R0 SYMATTR InstName R5 SYMATTR Value 59K SYMBOL voltage -272 -144 R0 SYMATTR InstName V1 SYMATTR Value 3.3 SYMBOL res 176 -144 R0 SYMATTR InstName R7 SYMATTR Value 1Meg SYMBOL res -384 896 R0 SYMATTR InstName R8 SYMATTR Value 11.8K SYMBOL res -384 784 R0 SYMATTR InstName R9 SYMATTR Value 12.4K SYMBOL cap -464 432 R0 SYMATTR Value 100µ SYMATTR SpiceLine Rser=5m SYMATTR InstName C4 SYMBOL ind 480 432 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L2 SYMATTR Value .47µ SYMBOL res 784 416 R0 SYMATTR InstName Rload2 SYMATTR Value .1 SYMBOL res -592 416 R0 SYMATTR InstName Rload1 SYMATTR Value .15 SYMBOL PowerProducts\\LTC3836 128 464 R0 SYMATTR InstName U1 SYMBOL schottky -112 -128 R0 SYMATTR InstName D1 SYMATTR Value CMDSH2-3 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky 304 -112 R0 SYMATTR InstName D2 SYMATTR Value CMDSH2-3 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -112 336 R0 WINDOW 3 19 61 Left 2 SYMATTR Value .22µ SYMATTR InstName C6 SYMBOL cap 304 336 R0 WINDOW 3 19 61 Left 2 SYMATTR Value .22µ SYMATTR InstName C2 SYMBOL nmos -128 432 M0 WINDOW 0 -4 40 Right 2 WINDOW 3 21 102 Right 2 SYMATTR InstName Q2 SYMATTR Value Si4866DY SYMBOL cap -96 688 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 51 87 VTop 2 SYMATTR InstName C3 SYMATTR Value 410p SYMATTR SpiceLine Rser=15.8K Cpar=100p SYMBOL nmos 416 240 R0 SYMATTR InstName Q1 SYMATTR Value Si4866DY SYMBOL nmos 416 432 R0 SYMATTR InstName Q4 SYMATTR Value Si4866DY SYMBOL cap 336 688 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 51 87 VTop 2 SYMATTR InstName C7 SYMATTR Value 410p SYMATTR SpiceLine Rser=15.8K Cpar=100p SYMBOL cap 336 912 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C8 SYMATTR Value 250p TEXT 608 864 Left 2 !.tran 2.5m startup