Version 4 SHEET 1 3964 776 WIRE 992 -1520 880 -1520 WIRE 1088 -1520 992 -1520 WIRE 1376 -1520 1088 -1520 WIRE 2704 -1520 2416 -1520 WIRE 2800 -1520 2704 -1520 WIRE 2880 -1520 2800 -1520 WIRE 2896 -1520 2880 -1520 WIRE 2992 -1520 2976 -1520 WIRE 3040 -1520 2992 -1520 WIRE 3152 -1520 3040 -1520 WIRE 880 -1504 880 -1520 WIRE 992 -1504 992 -1520 WIRE 1376 -1504 1376 -1520 WIRE 2416 -1504 2416 -1520 WIRE 2704 -1504 2704 -1520 WIRE 3040 -1504 3040 -1520 WIRE 3152 -1504 3152 -1520 WIRE 1328 -1424 1168 -1424 WIRE 2624 -1424 2464 -1424 WIRE 880 -1408 880 -1424 WIRE 992 -1408 992 -1440 WIRE 2704 -1408 2704 -1440 WIRE 3040 -1408 3040 -1440 WIRE 3152 -1408 3152 -1424 WIRE 1376 -1392 1376 -1408 WIRE 1568 -1392 1376 -1392 WIRE 1776 -1392 1568 -1392 WIRE 1904 -1392 1776 -1392 WIRE 1936 -1392 1904 -1392 WIRE 2032 -1392 2016 -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 1168 -1056 1168 -1424 WIRE 1664 -1056 1168 -1056 WIRE 2624 -1056 2624 -1424 WIRE 2624 -1056 2272 -1056 WIRE 1088 -976 1088 -1520 WIRE 1664 -976 1088 -976 WIRE 2368 -976 2272 -976 WIRE 2496 -976 2368 -976 WIRE 2800 -976 2800 -1520 WIRE 2800 -976 2496 -976 WIRE 1088 -960 1088 -976 WIRE 2496 -960 2496 -976 WIRE 1664 -880 1088 -880 WIRE 2368 -880 2368 -976 WIRE 2368 -880 2272 -880 WIRE 2496 -880 2496 -896 WIRE 1088 -864 1088 -880 WIRE 1376 -784 1360 -784 WIRE 1456 -784 1440 -784 WIRE 1664 -784 1456 -784 WIRE 2368 -784 2272 -784 WIRE 2496 -784 2368 -784 WIRE 2880 -784 2880 -1520 WIRE 2880 -784 2576 -784 WIRE 1088 -768 1088 -784 WIRE 2368 -768 2368 -784 WIRE 1456 -688 1456 -784 WIRE 1472 -688 1456 -688 WIRE 1600 -688 1552 -688 WIRE 1664 -688 1600 -688 WIRE 2368 -688 2368 -704 WIRE 2368 -688 2272 -688 WIRE 2496 -688 2368 -688 WIRE 2992 -688 2992 -1520 WIRE 2992 -688 2576 -688 WIRE 1456 -592 1440 -592 WIRE 1536 -592 1520 -592 WIRE 1664 -592 1536 -592 WIRE 2992 -592 2992 -608 WIRE 2992 -592 2272 -592 WIRE 2992 -576 2992 -592 WIRE 1536 -496 1536 -592 WIRE 1664 -496 1536 -496 WIRE 2992 -480 2992 -496 WIRE 1536 -400 1536 -496 WIRE 1664 -400 1536 -400 WIRE 2288 -400 2272 -400 WIRE 1664 -320 1648 -320 WIRE 2288 -320 2272 -320 WIRE 1536 -176 1536 -400 WIRE 1568 -176 1536 -176 WIRE 1776 -176 1776 -224 WIRE 1776 -176 1648 -176 WIRE 1776 -160 1776 -176 WIRE 1968 -160 1968 -224 WIRE 2160 -160 2160 -224 WIRE 1776 -64 1776 -96 WIRE 1968 -64 1968 -80 WIRE 2160 -64 2160 -80 WIRE 1968 16 1968 0 FLAG 2288 -320 0 FLAG 1776 -64 0 FLAG 2160 -64 0 FLAG 1968 16 0 FLAG 880 -1408 0 FLAG 1088 -768 0 FLAG 3152 -1408 0 FLAG 880 -1520 IN FLAG 1376 -1264 0 FLAG 2416 -1264 0 FLAG 2992 -480 0 FLAG 2288 -400 0 FLAG 1360 -784 0 FLAG 1440 -592 0 FLAG 3152 -1520 OUT FLAG 1648 -320 0 FLAG 3040 -1408 0 FLAG 992 -1408 0 FLAG 2704 -1408 0 FLAG 1600 -688 _PGOOD FLAG 2496 -880 0 SYMBOL cap 1760 -160 R0 SYMATTR InstName C1 SYMATTR Value 47n SYMBOL cap 1952 -64 R0 WINDOW 39 24 77 Left 2 SYMATTR Value 27n SYMATTR InstName C2 SYMBOL voltage 880 -1520 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL res 1920 -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 BSC100N06LS3 SYMBOL nmos 1328 -1376 R0 WINDOW 0 58 29 Left 2 WINDOW 3 59 60 Left 2 SYMATTR InstName Q2 SYMATTR Value BSC100N06LS3 SYMBOL ind 2032 -1376 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 3µ SYMATTR SpiceLine Rser=3m SYMBOL res 2880 -1504 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 5m SYMBOL nmos 2464 -1504 M0 WINDOW 0 -2 26 Right 2 WINDOW 3 -2 56 Right 2 SYMATTR InstName Q3 SYMATTR Value BSC050NE2LS 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 BSC050NE2LS 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 -176 R0 SYMATTR InstName R3 SYMATTR Value 226k SYMBOL res 2976 -704 R0 SYMATTR InstName R4 SYMATTR Value 110K SYMBOL cap 1440 -800 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 4.7µ SYMBOL cap 1520 -608 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value .47µ SYMBOL res 2976 -592 R0 SYMATTR InstName R5 SYMATTR Value 10K SYMBOL res 1568 -704 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 100K SYMBOL res 1072 -880 R0 SYMATTR InstName R7 SYMATTR Value 100k SYMBOL res 1072 -976 R0 SYMATTR InstName R8 SYMATTR Value 130k SYMBOL cap 3024 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 470µ SYMATTR InstName C7 SYMATTR SpiceLine Rser=15m SYMBOL res 1952 -176 R0 SYMATTR InstName R9 SYMATTR Value 12K SYMBOL cap 976 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 27 54 Left 2 SYMATTR Value 120µ SYMATTR Value2 x4 SYMATTR InstName C8 SYMBOL res 3136 -1520 R0 SYMATTR InstName Rload SYMATTR Value 1.5 SYMBOL cap 2688 -1504 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 470µ SYMATTR InstName C9 SYMATTR SpiceLine Rser=15m SYMBOL res 1664 -192 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 100K SYMBOL LT8392 1968 -768 R0 SYMATTR InstName U1 SYMBOL cap 2352 -768 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 1µ SYMATTR InstName C10 SYMATTR SpiceLine Rser=15m SYMBOL res 2480 -768 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R11 SYMATTR Value 100 SYMBOL res 2480 -672 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R12 SYMATTR Value 100 SYMBOL cap 2480 -960 R0 WINDOW 3 37 33 Left 2 WINDOW 123 32 56 Left 2 SYMATTR Value 1µ SYMATTR InstName C11 TEXT 2624 -416 Left 2 !.tran 12m startup TEXT 1952 -1520 Bottom 2 ;LT8392 - 60V Synchronous 4-Switch Buck-Boost Controller with Spread Sprectrum\nHigh Efficiency 96W (12V, 8A) Buck-Boost Regulator\nInput: 6V to 36V Output: 12V @ 8A, Fsw = 200kHz