* Z:\home\khalils\Downloads\files\data\raw_asc\LT8550.asc
* Generated by LTspice 26.0.1 for Windows.
* Note: For faster simulation purposes the operating frequency has been set to 100kHz\nOutput filter values has been sufficiently increased. This is not to represent the real\napplication circuit, but solely for time saving.
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT3741.asy)
* Library below included based on ModelFile attribute of instance XU2 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT8550.asy)
V1 IN 0 24
R14 N003 N012 10
R10 IN N013 137k
R5 N009 N008 10k
C27 OUT 0 47 m=5
L3 SW2 N025 6.5
C16 IN 0 100
C4 CBOOT SW 0.22
C20 N027 OUT 1n
Rs3 OUT N030 2.5m
C28 N016 SW1 0.22
M5 SW1 N020 0 0 Si7884DP
C40 OUT 0 150 m=5
L1 SW N003 6.5
Rs1 OUT N018 2.5m
R15 N025 N027 10
C34 IN 0 47 x2
C18 OUT 0 47 m=5
M6 IN N024 SW2 SW2 Si7884DP
C33 N032 OUT 1n
R9 ENOUT REG 47k
D5 REG N033 1N5819
Rsp OUT N003 2.5m
C9 N008 0 4.7n
C38 OUT 0 150 m=5
R12 REG N019 1
C15 IN 0 47 x2
Rhot N001 N005 45.3k
C26 OUT 0 150 m=5
M2 SW LG 0 0 Si7884DP
C36 N033 SW4 0.22
Rs2 OUT N025 2.5m
C6 0 Vcc_int 22
C10 0 N011 1n
C13 N019 0 4.7
XU2 N036 N031 REG SW3 N029 N028 N023 N024 SW2 N026 N020 BGBUF TGBUF N016 N017 SW1 CBOOT HG SW CLK2 CLK1 LG 0 REG 0 N022 NC_12 ENOUT N019 NC_13 N013 0 IAMPP N012 OUT N027 OUT N037 OUT Vcc_int 0 NC_14 OUT N021 N032 OUT N014 N015 IN SW4 N034 N033 0 LT8550 ;pnba BG4)BG3)REG)SW3)TG3)BST3)BST2)TG2)SW2)BG2)BG1)BGBUF)TGBUF)BST1)TG1)SW1)TGSR)TGSH)TGSL)CLK2)CLK1)BGSH)SYNC)PHS2)PHS1)RT/MS)ILIM)ENOUT)VCC)MODE)_SHDN)IAMPN)IAMPP)ISP)ISN)ISP2)ISN2)ISP4)ISN4)REGSNS)PHS3)NC)ISN1)ISP1)ISP3)ISN3)REGIS)REGDRV)VIN)SW4)TG4)BST4)GND
R6 N001 N004 100k
M11 SW4 N036 0 0 Si7884DP
C21 N012 OUT 1n
C37 N037 OUT 1n
R8 N011 CLK1 1
R13 N022 0 249k
M4 IN N017 SW1 SW1 Si7884DP
C3 N006 N007 33n
C14 IAMPP 0 220p
Rntc N005 0 680k
D3 REG N016 1N5819
M7 SW2 N026 0 0 Si7884DP
D4 REG N028 1N5819
C25 IN 0 100
RL OUT 0 .5
R7 N002 0 200k
C8 SS 0 10n
R16 N018 N021 10
M9 SW3 N031 0 0 Si7884DP
C2 OUT 0 150 m=10
C30 IN 0 47 x2
Rs4 OUT N035 2.5m
R18 N035 N037 10
XU1 0 ENOUT N001 N005 MP_01 N004 MP_02 SS MP_03 N010 N006 N007 MP_04 N009 N002 MP_05 MP_06 MP_07 MP_08 MP_09 MP_10 MP_11 HG SW CBOOT LG Vcc_int IN N011 LT3741 ;pnba GND)EN/UVLO)Vref)CTRL2))CTRL1))SS))FB)Sense+)Sense-))VC)Rt))))))))HG)SW)CBOOT)LG)Vcc_int)Vin)SYNC
C35 IN 0 100
C17 OUT 0 150 m=5
C29 N021 OUT 1n
M10 IN N034 SW4 SW4 Si7884DP
M1 IN HG SW SW Si7884DP
R11 N013 0 24k
M8 IN N029 SW3 SW3 Si7884DP
C11 OUT 0 47 m=5
C22 IN 0 47 x2
C23 IN 0 100
C31 IN 0 100
R3 N003 N006 10
R2 N010 0 12.1k
L2 SW1 N018 6.5
C39 OUT 0 47 m=5
C12 REG 0 10
L5 SW4 N035 6.5
C1 OUT 0 47 m=10
R1 OUT N010 88.7k
R4 OUT N007 10
D1 Vcc_int CBOOT 1N5819
M3 REG N015 N014 N014 ZXMP10A18G
C5 0 IN 1
L4 SW3 N030 6.5
C19 N023 SW2 0.22
R17 N030 N032 10
C7 N001 0 2.2
C32 N028 SW3 0.22
C24 IN 0 47 x2
D2 REG N023 1N5819
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.model NMOS NMOS
.model PMOS PMOS
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.mos
.tran 10m startup
.lib LT3741.sub
.lib LT8550.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 4308 3160
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SYMBOL res -272 1136 R0
SYMATTR InstName R12
SYMATTR Value 1
SYMBOL res 880 1840 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R15
SYMATTR Value 10
SYMBOL res -416 208 R0
SYMATTR InstName Rhot
SYMATTR Value 45.3k
SYMBOL res -176 720 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 47k
SYMBOL schottky 800 2480 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D5
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 864 2064 R0
WINDOW 123 42 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C30
SYMATTR Value 47
SYMBOL res 592 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10
SYMBOL res 1056 1680 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs2
SYMATTR Value 2.5m
SYMBOL nmos 688 2560 R0
WINDOW 0 62 10 Left 2
SYMATTR InstName M10
SYMATTR Value Si7884DP
SYMBOL res -192 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 200k
SYMBOL schottky 800 992 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D3
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 880 1344 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R16
SYMATTR Value 10
SYMBOL cap -352 1136 R0
SYMATTR InstName C12
SYMATTR Value 10
SYMBOL res 880 2336 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R17
SYMATTR Value 10
SYMBOL res 880 2832 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R18
SYMATTR Value 10
SYMBOL cap -48 -304 R0
SYMATTR InstName C5
SYMATTR Value 1
SYMBOL cap 624 1872 R0
SYMATTR InstName C20
SYMATTR Value 1n
SYMBOL cap 864 1568 R0
WINDOW 123 42 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C15
SYMATTR Value 47
SYMBOL cap 1264 1712 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C26
SYMATTR Value 150
SYMBOL res -400 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rntc
SYMATTR Value 680k
SYMBOL res 592 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL res 1056 2176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs3
SYMATTR Value 2.5m
SYMBOL pmos -288 1088 R180
WINDOW 0 4 148 Left 2
WINDOW 3 -113 108 Left 2
SYMATTR InstName M3
SYMATTR Value ZXMP10A18G
SYMBOL cap -224 400 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C8
SYMATTR Value 10n
SYMBOL cap 624 1024 R0
WINDOW 0 24 -33 Left 2
WINDOW 3 24 1 Left 2
SYMATTR InstName C28
SYMATTR Value 0.22
SYMBOL res -128 1376 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 249k
SYMBOL cap -432 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 2.2
SYMBOL ind 768 2704 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -23 56 VBottom 2
SYMATTR InstName L5
SYMATTR Value 6.5
SYMBOL LT8550 272 1424 R0
SYMATTR InstName U2
SYMBOL nmos 688 1072 R0
WINDOW 0 62 10 Left 2
SYMATTR InstName M4
SYMATTR Value Si7884DP
SYMBOL res 800 848 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R14
SYMATTR Value 10
SYMBOL cap 1184 1712 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C18
SYMATTR Value 47
SYMBOL cap -288 1456 R0
SYMATTR InstName C14
SYMATTR Value 220p
SYMBOL cap 624 2512 R0
WINDOW 0 24 -33 Left 2
WINDOW 3 24 1 Left 2
SYMATTR InstName C36
SYMATTR Value 0.22
SYMBOL ind 768 1712 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -23 56 VBottom 2
SYMATTR InstName L3
SYMATTR Value 6.5
SYMBOL nmos 688 1712 R0
SYMATTR InstName M7
SYMATTR Value Si7884DP
SYMBOL res 1360 128 R0
SYMATTR InstName RL
SYMATTR Value .5
SYMBOL ind 768 1216 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -23 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 6.5
SYMBOL nmos 688 1568 R0
WINDOW 0 62 10 Left 2
SYMATTR InstName M6
SYMATTR Value Si7884DP
SYMBOL cap 864 2560 R0
WINDOW 123 42 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C34
SYMATTR Value 47
SYMBOL res 1056 2672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs4
SYMATTR Value 2.5m
SYMBOL cap 624 2864 R0
SYMATTR InstName C37
SYMATTR Value 1n
SYMBOL cap 848 -192 R0
WINDOW 123 36 84 Left 2
SYMATTR InstName C23
SYMATTR Value 100
SYMBOL PowerProducts\\LT3741 32 224 R0
SYMATTR InstName U1
SYMBOL cap 1264 1216 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C17
SYMATTR Value 150
SYMBOL res -464 896 R0
WINDOW 3 32 80 Left 2
SYMATTR Value 137k
SYMATTR InstName R10
SYMBOL cap 1264 2208 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C38
SYMATTR Value 150
SYMBOL ind 768 2208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -23 56 VBottom 2
SYMATTR InstName L4
SYMATTR Value 6.5
SYMBOL cap 624 2368 R0
SYMATTR InstName C33
SYMATTR Value 1n
SYMBOL cap 944 2064 R0
WINDOW 123 36 84 Left 2
SYMATTR InstName C31
SYMATTR Value 100
SYMBOL schottky 512 -144 R0
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 224 336 R0
SYMATTR InstName C3
SYMATTR Value 33n
SYMBOL nmos 656 144 R0
SYMATTR InstName M2
SYMATTR Value Si7884DP
SYMBOL cap 1184 2704 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C39
SYMATTR Value 47
SYMBOL cap 624 1376 R0
SYMATTR InstName C29
SYMATTR Value 1n
SYMBOL cap 1264 2704 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C40
SYMATTR Value 150
SYMBOL cap 944 2560 R0
WINDOW 123 36 84 Left 2
SYMATTR InstName C35
SYMATTR Value 100
SYMBOL nmos 688 1216 R0
SYMATTR InstName M5
SYMATTR Value Si7884DP
SYMBOL nmos 688 2704 R0
SYMATTR InstName M11
SYMATTR Value Si7884DP
SYMBOL cap 80 -304 R0
SYMATTR InstName C6
SYMATTR Value 22
SYMBOL nmos 656 -48 R0
SYMATTR InstName M1
SYMATTR Value Si7884DP
SYMBOL res 1056 1184 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rs1
SYMATTR Value 2.5m
SYMBOL res -464 1008 R0
SYMATTR InstName R11
SYMATTR Value 24k
SYMBOL cap 944 1072 R0
WINDOW 123 36 84 Left 2
SYMATTR InstName C25
SYMATTR Value 100
SYMBOL cap 864 1072 R0
WINDOW 123 42 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C24
SYMATTR Value 47
SYMBOL voltage -560 880 R0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL schottky 800 1488 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1184 144 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=10
SYMATTR InstName C1
SYMATTR Value 47
SYMBOL ind 736 144 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
WINDOW 123 -23 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 6.5
SYMBOL cap 1184 2208 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C27
SYMATTR Value 47
SYMBOL res -368 128 R0
SYMATTR InstName R6
SYMATTR Value 100k
SYMBOL cap 512 -48 R0
SYMATTR InstName C4
SYMATTR Value 0.22
SYMBOL res 1024 400 R0
SYMATTR InstName R1
SYMATTR Value 88.7k
SYMBOL schottky 800 1984 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D4
SYMATTR Value 1N5819
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1264 144 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=10
SYMATTR InstName C2
SYMATTR Value 150
SYMBOL cap 1184 1216 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 m=5
SYMATTR InstName C11
SYMATTR Value 47
SYMBOL cap -336 496 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C9
SYMATTR Value 4.7n
SYMBOL res 80 624 R0
SYMATTR InstName R8
SYMATTR Value 1
SYMBOL nmos 688 2064 R0
WINDOW 0 62 10 Left 2
SYMATTR InstName M8
SYMATTR Value Si7884DP
SYMBOL cap 768 -192 R0
WINDOW 123 42 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C22
SYMATTR Value 47
SYMBOL cap 944 1568 R0
WINDOW 123 36 84 Left 2
SYMATTR InstName C16
SYMATTR Value 100
SYMBOL nmos 688 2208 R0
SYMATTR InstName M9
SYMATTR Value Si7884DP
SYMBOL cap 192 608 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C10
SYMATTR Value 1n
SYMBOL res 992 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName Rsp
SYMATTR Value 2.5m
SYMBOL res 1024 512 R0
SYMATTR InstName R2
SYMATTR Value 12.1k
SYMBOL cap 624 2016 R0
WINDOW 0 24 -33 Left 2
WINDOW 3 24 1 Left 2
SYMATTR InstName C32
SYMATTR Value 0.22
SYMBOL cap -272 1264 R0
SYMATTR InstName C13
SYMATTR Value 4.7
SYMBOL cap 624 1520 R0
WINDOW 0 24 -33 Left 2
WINDOW 3 24 1 Left 2
SYMATTR InstName C19
SYMATTR Value 0.22
SYMBOL res -208 496 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL cap 624 880 R0
SYMATTR InstName C21
SYMATTR Value 1n
FLAG -32 592 0
FLAG 96 -320 0
FLAG 704 256 0
FLAG 1040 624 0
FLAG 1280 224 0
FLAG -304 416 0
FLAG -416 512 0
FLAG -304 128 0
FLAG -512 32 0
FLAG 1200 224 0
FLAG -32 -320 0
FLAG -512 320 0
FLAG -560 -208 IN
FLAG 256 -64 CBOOT
FLAG 240 32 HG
FLAG 240 224 LG
FLAG 240 128 SW
FLAG 1152 128 OUT
FLAG 1376 240 0
FLAG 208 624 0
FLAG 208 2992 0
FLAG -560 992 0
FLAG -288 736 REG
FLAG -448 1120 0
FLAG -336 1216 0
FLAG -256 1344 0
FLAG -272 1392 0
FLAG -272 1552 0
FLAG -112 1056 REG
FLAG 816 1008 REG
FLAG 864 -112 0
FLAG 784 -112 0
FLAG 960 1152 0
FLAG 880 1152 0
FLAG 960 1056 IN
FLAG 736 1328 0
FLAG 816 1504 REG
FLAG 960 1648 0
FLAG 880 1648 0
FLAG 960 1552 IN
FLAG 736 1824 0
FLAG 96 768 CLK1
FLAG 688 1200 SW1
FLAG 688 1696 SW2
FLAG -80 1584 CLK2
FLAG -208 416 SS
FLAG -96 1104 0
FLAG 256 -160 Vcc_int
FLAG -96 1152 REG
FLAG 816 2000 REG
FLAG 960 2144 0
FLAG 880 2144 0
FLAG 960 2048 IN
FLAG 736 2320 0
FLAG 816 2496 REG
FLAG 960 2640 0
FLAG 880 2640 0
FLAG 960 2544 IN
FLAG 736 2816 0
FLAG 688 2192 SW3
FLAG 688 2688 SW4
FLAG -96 1296 0
FLAG 0 736 ENOUT
FLAG -80 1728 TGBUF
FLAG -80 1680 BGBUF
FLAG -112 1440 IAMPP
FLAG -112 1536 IAMPN
FLAG -96 1344 0
FLAG 1280 1296 0
FLAG 1200 1296 0
FLAG 1280 1792 0
FLAG 1200 1792 0
FLAG 1280 2288 0
FLAG 1200 2288 0
FLAG 1280 2784 0
FLAG 1200 2784 0
TEXT 1096 3136 Left 2 !.tran 10m startup
TEXT -184 3088 Left 2 ;Note: For faster simulation purposes the operating frequency has been set to 100kHz\nOutput filter values has been sufficiently increased. This is not to represent the real\napplication circuit, but solely for time saving.