Version 4 SHEET 1 1032 720 WIRE 0 160 -96 160 WIRE 336 160 0 160 WIRE 416 160 336 160 WIRE -96 176 -96 160 WIRE 336 176 336 160 WIRE 416 176 416 160 WIRE -96 272 -96 256 WIRE 0 272 0 160 WIRE 32 272 0 272 WIRE 608 272 320 272 WIRE 656 272 608 272 WIRE 768 272 656 272 WIRE 848 272 768 272 WIRE 768 288 768 272 WIRE 848 288 848 272 WIRE 656 320 656 272 WIRE 0 336 0 272 WIRE 32 336 0 336 WIRE 336 336 336 256 WIRE 336 336 320 336 WIRE 448 336 336 336 WIRE 608 336 608 272 WIRE 608 336 512 336 WIRE 768 384 768 352 WIRE 848 384 848 368 WIRE -144 400 -160 400 WIRE -48 400 -64 400 WIRE 32 400 16 400 WIRE 416 400 416 256 WIRE 416 400 320 400 WIRE 528 400 416 400 WIRE 608 400 608 336 WIRE 608 400 592 400 WIRE 32 464 16 464 WIRE 656 464 656 400 WIRE 656 464 320 464 WIRE 656 480 656 464 WIRE 112 528 112 512 WIRE 240 528 240 512 WIRE 656 576 656 560 FLAG -96 272 0 FLAG 656 576 0 FLAG 240 528 0 FLAG 768 384 0 FLAG 848 384 0 FLAG 848 272 OUT FLAG 112 528 0 FLAG 16 464 0 FLAG -160 400 0 FLAG -96 160 IN SYMBOL res 640 304 R0 SYMATTR InstName R1 SYMATTR Value 383K SYMBOL res 640 464 R0 SYMATTR InstName R2 SYMATTR Value 121K SYMBOL voltage -96 160 R0 SYMATTR InstName V1 SYMATTR Value 2.8 SYMBOL cap 752 288 R0 SYMATTR InstName C1 SYMATTR Value 22µ SYMATTR SpiceLine Rser=100m SYMBOL ind 320 160 R0 SYMATTR InstName L1 SYMATTR Value 2.2µ SYMBOL schottky 448 352 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value 1N5817 SYMATTR Description Diode SYMATTR Type diode SYMBOL PowerProducts\\LTC3428 176 368 R0 SYMATTR InstName U1 SYMBOL schottky 528 416 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value 1N5817 SYMATTR Description Diode SYMATTR Type diode SYMBOL ind 400 160 R0 SYMATTR InstName L2 SYMATTR Value 2.2µ SYMBOL res -48 384 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL cap 16 384 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1000p SYMBOL res 832 272 R0 SYMATTR InstName Rload SYMATTR Value 10 TEXT 368 536 Left 2 !.tran 500u startup