Version 4 SHEET 1 3964 776 WIRE 1136 -1520 1024 -1520 WIRE 1232 -1520 1136 -1520 WIRE 1376 -1520 1232 -1520 WIRE 2704 -1520 2416 -1520 WIRE 2800 -1520 2704 -1520 WIRE 2816 -1520 2800 -1520 WIRE 2912 -1520 2896 -1520 WIRE 2960 -1520 2912 -1520 WIRE 3072 -1520 2960 -1520 WIRE 1024 -1504 1024 -1520 WIRE 1136 -1504 1136 -1520 WIRE 1376 -1504 1376 -1520 WIRE 2416 -1504 2416 -1520 WIRE 2704 -1504 2704 -1520 WIRE 2960 -1504 2960 -1520 WIRE 3072 -1504 3072 -1520 WIRE 1328 -1424 1264 -1424 WIRE 2656 -1424 2464 -1424 WIRE 1024 -1408 1024 -1424 WIRE 1136 -1408 1136 -1440 WIRE 2704 -1408 2704 -1440 WIRE 2960 -1408 2960 -1440 WIRE 3072 -1408 3072 -1424 WIRE 1376 -1392 1376 -1408 WIRE 1568 -1392 1376 -1392 WIRE 1776 -1392 1568 -1392 WIRE 1904 -1392 1776 -1392 WIRE 1920 -1392 1904 -1392 WIRE 2032 -1392 2000 -1392 WIRE 2048 -1392 2032 -1392 WIRE 2160 -1392 2128 -1392 WIRE 2368 -1392 2160 -1392 WIRE 2416 -1392 2416 -1408 WIRE 2416 -1392 2368 -1392 WIRE 1376 -1376 1376 -1392 WIRE 2416 -1376 2416 -1392 WIRE 1776 -1312 1776 -1392 WIRE 1904 -1312 1904 -1392 WIRE 2032 -1312 2032 -1392 WIRE 2160 -1312 2160 -1392 WIRE 1328 -1296 1296 -1296 WIRE 2496 -1296 2464 -1296 WIRE 1376 -1264 1376 -1280 WIRE 2416 -1264 2416 -1280 WIRE 1568 -1232 1568 -1392 WIRE 1584 -1232 1568 -1232 WIRE 1664 -1232 1648 -1232 WIRE 2288 -1232 2272 -1232 WIRE 2368 -1232 2368 -1392 WIRE 2368 -1232 2352 -1232 WIRE 1296 -1136 1296 -1296 WIRE 1664 -1136 1296 -1136 WIRE 2496 -1136 2496 -1296 WIRE 2496 -1136 2272 -1136 WIRE 1264 -1056 1264 -1424 WIRE 1664 -1056 1264 -1056 WIRE 2656 -1056 2656 -1424 WIRE 2656 -1056 2272 -1056 WIRE 1232 -976 1232 -1520 WIRE 1664 -976 1232 -976 WIRE 2800 -976 2800 -1520 WIRE 2800 -976 2272 -976 WIRE 1232 -960 1232 -976 WIRE 1664 -880 1232 -880 WIRE 2800 -880 2800 -976 WIRE 2800 -880 2272 -880 WIRE 1232 -864 1232 -880 WIRE 2912 -800 2912 -1520 WIRE 2912 -800 2880 -800 WIRE 1472 -784 1456 -784 WIRE 1552 -784 1536 -784 WIRE 1664 -784 1552 -784 WIRE 2880 -784 2880 -800 WIRE 2880 -784 2272 -784 WIRE 2912 -784 2912 -800 WIRE 1232 -768 1232 -784 WIRE 1552 -688 1552 -784 WIRE 1568 -688 1552 -688 WIRE 1664 -688 1648 -688 WIRE 2912 -688 2912 -704 WIRE 2912 -688 2272 -688 WIRE 2912 -672 2912 -688 WIRE 1552 -592 1536 -592 WIRE 1632 -592 1616 -592 WIRE 1664 -592 1632 -592 WIRE 2912 -576 2912 -592 WIRE 1632 -496 1632 -592 WIRE 1664 -496 1632 -496 WIRE 2304 -496 2272 -496 WIRE 1632 -400 1632 -496 WIRE 1664 -400 1632 -400 WIRE 2288 -400 2272 -400 WIRE 1664 -320 1648 -320 WIRE 2288 -320 2272 -320 WIRE 1776 -208 1776 -224 WIRE 1968 -208 1968 -224 WIRE 2160 -208 2160 -224 WIRE 1776 -112 1776 -144 WIRE 1968 -112 1968 -128 WIRE 2160 -112 2160 -128 WIRE 1968 -32 1968 -48 FLAG 2288 -320 0 FLAG 1776 -112 0 FLAG 2160 -112 0 FLAG 1968 -32 0 FLAG 1024 -1408 0 FLAG 1232 -768 0 FLAG 3072 -1408 0 FLAG 1024 -1520 IN FLAG 1376 -1264 0 FLAG 2416 -1264 0 FLAG 2912 -576 0 FLAG 2288 -400 0 FLAG 1456 -784 0 FLAG 1536 -592 0 FLAG 3072 -1520 OUT FLAG 1648 -320 0 FLAG 2960 -1408 0 FLAG 1136 -1408 0 FLAG 2704 -1408 0 SYMBOL cap 1760 -208 R0 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL cap 1952 -112 R0 WINDOW 39 24 77 Left 2 SYMATTR Value 15000p SYMATTR InstName C2 SYMBOL voltage 1024 -1520 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 13 SYMBOL res 1904 -1376 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 1m SYMBOL cap 1648 -1248 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .1µ SYMBOL nmos 1328 -1504 R0 WINDOW 0 59 25 Left 2 WINDOW 3 60 50 Left 2 WINDOW 123 59 72 Left 2 SYMATTR InstName Q1 SYMATTR Value BSC014N04LSI SYMATTR Value2 m=2 SYMBOL nmos 1328 -1376 R0 WINDOW 0 58 29 Left 2 WINDOW 3 59 60 Left 2 SYMATTR InstName Q2 SYMATTR Value BSC010N04LSI SYMBOL ind 2032 -1376 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 3.3µ SYMATTR SpiceLine Rser=3m SYMBOL res 2800 -1504 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 3m SYMBOL nmos 2464 -1504 M0 WINDOW 0 -2 26 Right 2 WINDOW 3 -2 56 Right 2 SYMATTR InstName Q3 SYMATTR Value BSC009NE2LS5I SYMBOL nmos 2464 -1376 M0 WINDOW 0 -1 22 Right 2 WINDOW 3 -2 46 Right 2 WINDOW 123 -4 65 Right 2 SYMATTR InstName Q4 SYMATTR Value BSC015NE2LS5I SYMATTR Value2 m=2 SYMBOL cap 2352 -1248 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .1µ SYMBOL res 2144 -224 R0 SYMATTR InstName R3 SYMATTR Value 309K SYMBOL res 2896 -800 R0 SYMATTR InstName R4 SYMATTR Value 110K SYMBOL cap 1536 -800 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 4.7µ SYMBOL cap 1616 -608 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value .47µ SYMBOL LT8390 1968 -768 R0 SYMATTR InstName U1 SYMBOL res 2896 -688 R0 SYMATTR InstName R5 SYMATTR Value 10K SYMBOL res 1664 -704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 100K SYMBOL res 1216 -880 R0 SYMATTR InstName R7 SYMATTR Value 56.2K SYMBOL res 1216 -976 R0 SYMATTR InstName R8 SYMATTR Value 365K SYMBOL cap 2944 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 560µ SYMATTR Value2 x2 SYMATTR InstName C7 SYMATTR SpiceLine Rser=15m SYMBOL res 1952 -224 R0 SYMATTR InstName R9 SYMATTR Value 15K SYMBOL cap 1120 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 27 54 Left 2 SYMATTR Value 180µ SYMATTR Value2 x2 SYMATTR InstName C8 SYMBOL res 3056 -1520 R0 SYMATTR InstName Rload SYMATTR Value .48 SYMBOL cap 2688 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 560µ SYMATTR Value2 x2 SYMATTR InstName C9 SYMATTR SpiceLine Rser=15m TEXT 2624 -416 Left 2 !.tran 12m startup TEXT 1392 -16 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 © 2017 Linear Technology Inc. All rights reserved. TEXT 1952 -1520 Bottom 2 ;LT8390 - 60V Synchronous 4-Switch Buck-Boost Controller with Spread Sprectrum\nHigh Efficiency 250W Buck-Boost Regulator\nInput: 9V to 36V Output: 12V @ 25A, Fsw = 150kHz