* Z:\home\khalils\Downloads\files\data\raw_asc\LT8253.asc
* Generated by LTspice 26.0.1 for Windows.
* LT8253 - 40V Synchronous 4-Switch Buck-Boost Controller with Spread Sprectrum\nHigh Efficiency 60W Buck-Boost Regulator\nInput: 9V to 36V Output: 12V @ 3A, Fsw = 400kHz
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT8253.asy)
MQ1 IN TG1 SW1 SW1 BSC014N04LSI m=2
R7 N004 0 165k
MQ4 SW2 BG2 0 0 BSC015NE2LS5I m=2
R5 FB 0 10K
V1 IN 0 PWL(0 0 100u 48 6m 48); 6.1m 11 7m 11 7.1m 12 8m 12 8.1m 13 9m 13 9.1m 24 10m 24)
Rload OUT 0 2.4
MQ2 SW1 BG1 0 0 BSC010N04LSI
C2 N008 0 2.2n
C4 SW2 N003 .1
R1 SW1 N001 5m
C8 IN 0 180 x2
C5 INTVcc 0 4.7
V2 N006 0 PWL(0 0 1m 0 1.001m 5 2m 5)
R9 VC N008 30K
R4 OUT FB 110K
C1 SS 0 10n
C9 OUT 0 220 x2 Rser=15m
L1 N001 SW2 6.8 Rser=3m
C6 N005 0 .47
MQ3 OUT TG2 SW2 SW2 BSC009NE2LS5I
C3 N002 SW1 .1
R6 _PGOOD INTVcc 100K
XU1 BG1 N002 SW1 TG1 SW1 N001 IN INTVcc N004 MP_01 N006 N005 MP_02 MP_03 MP_04 MP_05 _PGOOD SS FB VC N007 0 MP_06 OUT TG2 SW2 N003 BG2 0 LT8253 ;pnba BG1)BST1)SW1)TG1)LSP)LSN)Vin)INTVcc)EN/UVLO))VOUTEN)Vref)))))_PGood)SS)FB)Vc)RT)Sync/SPRD))Vout)TG2)SW2)BST2)BG2)GND
R3 N007 0 100k
R8 IN N004 383K
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 100m startup
.lib LT8253.sub
.backanno
.end

* LTspice schematic (.asc):
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 2912 -1520 2800 -1520
WIRE 3072 -1520 2912 -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 3072 -1504 3072 -1520
WIRE 1328 -1424 1264 -1424
WIRE 2656 -1424 2464 -1424
WIRE 1136 -1408 1136 -1440
WIRE 2704 -1408 2704 -1440
WIRE 3072 -1408 3072 -1424
WIRE 1376 -1392 1376 -1408
WIRE 1568 -1392 1376 -1392
WIRE 1664 -1392 1568 -1392
WIRE 1776 -1392 1664 -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 2272 -1392 2160 -1392
WIRE 2368 -1392 2272 -1392
WIRE 2416 -1392 2416 -1408
WIRE 2416 -1392 2368 -1392
WIRE 1024 -1376 1024 -1424
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 1568 -1136 1296 -1136
WIRE 1664 -1136 1568 -1136
WIRE 2368 -1136 2272 -1136
WIRE 2496 -1136 2496 -1296
WIRE 2496 -1136 2368 -1136
WIRE 1264 -1056 1264 -1424
WIRE 1568 -1056 1264 -1056
WIRE 1664 -1056 1568 -1056
WIRE 2368 -1056 2272 -1056
WIRE 2656 -1056 2656 -1424
WIRE 2656 -1056 2368 -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 1232 -864 1232 -880
WIRE 1376 -784 1360 -784
WIRE 1456 -784 1440 -784
WIRE 1600 -784 1456 -784
WIRE 1664 -784 1600 -784
WIRE 2912 -784 2912 -1520
WIRE 1232 -768 1232 -784
WIRE 1456 -688 1456 -784
WIRE 1472 -688 1456 -688
WIRE 1600 -688 1552 -688
WIRE 1664 -688 1600 -688
WIRE 2608 -688 2272 -688
WIRE 2912 -688 2912 -704
WIRE 2912 -688 2608 -688
WIRE 2912 -672 2912 -688
WIRE 1456 -592 1440 -592
WIRE 1664 -592 1520 -592
WIRE 2912 -576 2912 -592
WIRE 1664 -496 1312 -496
WIRE 1312 -448 1312 -496
WIRE 1664 -320 1648 -320
WIRE 2288 -320 2272 -320
WIRE 1312 -288 1312 -368
WIRE 1776 -192 1776 -224
WIRE 1968 -192 1968 -224
WIRE 1776 -160 1776 -192
WIRE 1968 -160 1968 -192
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
SYMBOL res 1216 -976 R0
SYMATTR InstName R8
SYMATTR Value 383K
SYMBOL res 2144 -176 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL nmos 1328 -1376 R0
WINDOW 0 58 29 Left 2
WINDOW 3 59 60 Left 2
SYMATTR InstName Q2
SYMATTR Value BSC010N04LSI
SYMBOL voltage 1312 -464 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PWL(0 0 1m 0 1.001m 5 2m 5)
SYMBOL res 3056 -1520 R0
SYMATTR InstName Rload
SYMATTR Value 2.4
SYMBOL res 1568 -704 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 100K
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 .1
SYMBOL cap 1520 -608 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value .47
SYMBOL res 1216 -880 R0
SYMATTR InstName R7
SYMATTR Value 165k
SYMBOL LT8253 1968 -768 R0
SYMATTR InstName U1
SYMBOL res 1952 -176 R0
SYMATTR InstName R9
SYMATTR Value 30K
SYMBOL ind 2032 -1376 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 6.8
SYMATTR SpiceLine Rser=3m
SYMBOL cap 1648 -1248 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value .1
SYMBOL voltage 1024 -1520 M0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PWL(0 0 100u 48 6m 48); 6.1m 11 7m 11 7.1m 12 8m 12 8.1m 13 9m 13 9.1m 24 10m 24)
SYMBOL cap 1440 -800 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 4.7
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 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 res 2896 -688 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res 1904 -1376 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 5m
SYMBOL res 2896 -800 R0
SYMATTR InstName R4
SYMATTR Value 110K
SYMBOL cap 1952 -64 R0
WINDOW 39 24 77 Left 2
SYMATTR Value 2.2n
SYMATTR InstName C2
SYMBOL cap 1120 -1504 R0
WINDOW 3 37 33 Left 2
WINDOW 123 27 54 Left 2
SYMATTR Value 180
SYMATTR Value2 x2
SYMATTR InstName C8
SYMBOL cap 1760 -160 R0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL cap 2688 -1504 R0
WINDOW 3 37 33 Left 2
WINDOW 123 32 56 Left 2
SYMATTR Value 220
SYMATTR Value2 x2
SYMATTR InstName C9
SYMATTR SpiceLine Rser=15m
FLAG 2288 -320 0
FLAG 1776 -64 0
FLAG 2160 -64 0
FLAG 1968 16 0
FLAG 1024 -1376 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 1360 -784 0
FLAG 1440 -592 0
FLAG 3072 -1520 OUT
FLAG 1648 -320 0
FLAG 1136 -1408 0
FLAG 2704 -1408 0
FLAG 1968 -192 VC
FLAG 2608 -688 FB
FLAG 1568 -1136 BG1
FLAG 1568 -1056 TG1
FLAG 2368 -1136 BG2
FLAG 2368 -1056 TG2
FLAG 1664 -1392 SW1
FLAG 2272 -1392 SW2
FLAG 1600 -688 _PGOOD
FLAG 1600 -784 INTVcc
FLAG 1776 -192 SS
FLAG 1312 -288 0
TEXT 2624 -416 Left 2 !.tran 100m startup
TEXT 1952 -1520 Bottom 2 ;LT8253 - 40V Synchronous 4-Switch Buck-Boost Controller with Spread Sprectrum\nHigh Efficiency 60W Buck-Boost Regulator\nInput: 9V to 36V       Output: 12V @ 3A, Fsw = 400kHz