Version 4 SHEET 1 1988 1080 WIRE -64 -512 -432 -512 WIRE 288 -512 -64 -512 WIRE -656 -496 -752 -496 WIRE -160 -496 -656 -496 WIRE -752 -480 -752 -496 WIRE -256 -480 -528 -480 WIRE -656 -464 -656 -496 WIRE -528 -464 -528 -480 WIRE -256 -464 -256 -480 WIRE -160 -464 -160 -496 WIRE -64 -464 -64 -512 WIRE 288 -448 288 -512 WIRE -432 -416 -432 -512 WIRE -752 -368 -752 -400 WIRE -656 -368 -656 -400 WIRE -528 -368 -528 -384 WIRE -432 -304 -432 -336 WIRE -352 -304 -432 -304 WIRE 288 -304 288 -368 WIRE 288 -304 224 -304 WIRE -592 -112 -752 -112 WIRE -496 -112 -592 -112 WIRE -384 -112 -496 -112 WIRE -352 -112 -384 -112 WIRE 432 -112 224 -112 WIRE 528 -112 432 -112 WIRE 688 -112 528 -112 WIRE -752 -96 -752 -112 WIRE -592 -96 -592 -112 WIRE -496 -96 -496 -112 WIRE 688 -96 688 -112 WIRE 688 -96 608 -96 WIRE 432 -80 432 -112 WIRE 528 -80 528 -112 WIRE 688 -80 688 -96 WIRE -384 -16 -384 -112 WIRE -352 -16 -384 -16 WIRE 368 -16 224 -16 WIRE -752 0 -752 -16 WIRE -592 0 -592 -32 WIRE -496 0 -496 -32 WIRE 432 16 432 -16 WIRE 528 16 528 -16 WIRE 688 16 688 0 WIRE 688 16 640 16 WIRE 688 32 688 16 WIRE -448 80 -464 80 WIRE -352 80 -368 80 WIRE 240 80 224 80 WIRE 336 80 320 80 WIRE 608 96 608 -96 WIRE 608 96 400 96 WIRE 640 128 640 16 WIRE 640 128 432 128 WIRE -432 272 -464 272 WIRE -352 272 -368 272 WIRE 240 272 224 272 WIRE 320 272 304 272 WIRE -352 368 -384 368 WIRE -208 448 -208 432 WIRE 80 448 80 432 WIRE 368 448 368 -16 WIRE 368 448 80 448 WIRE -16 464 -16 432 WIRE 400 464 400 96 WIRE 400 464 -16 464 WIRE -112 480 -112 432 WIRE 432 480 432 128 WIRE 432 480 -112 480 FLAG -752 -368 0 FLAG -752 -496 IN FLAG 528 16 0 FLAG 688 -112 Vout2_1.2V FLAG -208 448 0 FLAG -464 80 0 FLAG -464 272 0 FLAG -656 -368 0 FLAG 688 32 0 FLAG 320 272 0 FLAG -592 0 0 FLAG -496 0 0 FLAG -752 -112 Vout1_1.5V FLAG 336 80 0 FLAG -528 -368 0 FLAG 432 16 0 FLAG -752 0 0 FLAG -384 368 0 SYMBOL VOLTAGE -752 -496 R0 WINDOW 3 27 94 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value 12 SYMATTR InstName V1 SYMBOL cap 512 -80 R0 WINDOW 3 24 54 Left 2 SYMATTR Value 100µ SYMATTR InstName C1 SYMATTR SpiceLine Rser=5m SYMBOL res -352 64 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 40.2K SYMBOL cap -368 256 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 0.001µ SYMBOL cap -672 -464 R0 WINDOW 3 38 36 Left 2 WINDOW 40 36 64 Left 2 SYMATTR Value 22µ SYMATTR SpiceLine2 x4 SYMATTR InstName C3 SYMATTR SpiceLine Rser=5m SYMBOL PowerProducts\\LTM4628 -64 -16 R0 SYMATTR InstName U1 SYMBOL cap 240 288 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C7 SYMATTR Value 0.001µ SYMBOL cap -512 -96 R0 WINDOW 3 24 54 Left 2 SYMATTR Value 100µ SYMATTR InstName C8 SYMATTR SpiceLine Rser=5m SYMBOL polcap -608 -96 R0 WINDOW 3 24 64 Left 2 SYMATTR Value 470µ SYMATTR InstName C9 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine Rser=0.010 SYMBOL res 224 96 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 60.4K SYMBOL res -544 -480 R0 SYMATTR InstName R3 SYMATTR Value 100K SYMBOL polcap 416 -80 R0 WINDOW 3 24 64 Left 2 SYMATTR Value 470µ SYMATTR InstName C10 SYMATTR Description Capacitor SYMATTR Type cap SYMATTR SpiceLine Rser=0.010 SYMBOL res -448 -320 M180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R4 SYMATTR Value 10K SYMBOL res 272 -464 R0 SYMATTR InstName R5 SYMATTR Value 10K SYMBOL res -768 -112 R0 SYMATTR InstName Rload1 SYMATTR Value 0.1875 SYMBOL res 672 -96 R0 SYMATTR InstName Rload2 SYMATTR Value 0.15 TEXT 488 192 Left 2 !.tran 750u startup TEXT -624 472 Left 2 ;Note:\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts\n Copyright © 2010 Linear Technology Inc. All rights reserved. TEXT -64 -520 Bottom 2 ;LTM4628- Dual 8A, Step-Down DC/DC µmodule Regulator\nInput : 4.5 V to 26.5V, Output: 1.5 V@8A and 1.2V@8A