* Z:\home\khalils\Downloads\files\data\raw_asc\LT3748.asc
* Generated by LTspice 26.0.1 for Windows.
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT3748.asy)
R7 N011 0 33m
L2 0 N001 3.8 Rpar=5K
R3 N006 0 6.04K
D1 N001 OUT 30BQ060
R4 N007 0 10K
C3 OUT 0 100
Rload OUT 0 6
C4 N010 0 2n
C1 N008 N007 4.7n
L1 IN N004 60.8 Rpar=5K
C2 0 N012 4.7
K1 L1 L2 1
R1 N005 0 56.2K
R2 N004 N003 243K
XU1 0 MP_01 MP_02 N009 IN N012 N002 MP_03 MP_04 N010 N011 N008 N003 N006 N005 LT3748 ;pnba GND)))Gate)Vin)INTVcc)EN/UVLO)))SS)Sense)Vc)Rfb)Rref)TC
MQ1 N004 N009 N011 N011 Si4490DY
V1 IN 0 48
R5 IN N002 412K
R6 N002 0 15.4K
.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 2.5m startup
.lib LT3748.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1380 680
WIRE 0 -112 -112 -112
WIRE 192 -112 0 -112
WIRE 528 -112 192 -112
WIRE 656 -112 576 -112
WIRE 768 -112 720 -112
WIRE 880 -112 768 -112
WIRE -112 -96 -112 -112
WIRE 528 -96 528 -112
WIRE 576 -96 576 -112
WIRE 768 -96 768 -112
WIRE 880 -96 880 -112
WIRE 0 -80 0 -112
WIRE -112 0 -112 -16
WIRE 576 0 576 -16
WIRE 768 0 768 -32
WIRE 880 0 880 -16
WIRE 192 32 192 -112
WIRE -144 96 -160 96
WIRE 0 96 0 0
WIRE 0 96 -64 96
WIRE 32 96 0 96
WIRE 384 96 352 96
WIRE 528 96 528 -16
WIRE 528 96 464 96
WIRE -96 176 -160 176
WIRE 32 176 -16 176
WIRE 368 176 352 176
WIRE 464 176 448 176
WIRE 528 176 528 96
WIRE -144 256 -160 256
WIRE -48 256 -64 256
WIRE 32 256 16 256
WIRE 480 256 352 256
WIRE -48 336 -64 336
WIRE 32 336 16 336
WIRE 528 336 528 272
WIRE 528 336 352 336
WIRE 528 352 528 336
WIRE 128 416 128 400
WIRE 256 416 256 400
WIRE 528 448 528 432
WIRE 256 496 256 480
SYMBOL res -48 240 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL ind2 512 -112 R0
WINDOW 0 0 40 Right 2
WINDOW 3 0 72 Right 2
SYMATTR InstName L1
SYMATTR Value 60.8
SYMATTR Type ind
SYMATTR SpiceLine Rpar=5K
SYMBOL nmos 480 176 R0
SYMATTR InstName Q1
SYMATTR Value Si4490DY
SYMBOL cap 16 352 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 2n
SYMBOL res 480 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 243K
SYMBOL res 352 192 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 6.04K
SYMBOL res 864 -112 R0
SYMATTR InstName Rload
SYMATTR Value 6
SYMBOL cap 752 -96 R0
SYMATTR InstName C3
SYMATTR Value 100
SYMBOL schottky 656 -96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value 30BQ060
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -48 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 15.4K
SYMBOL res 512 336 R0
SYMATTR InstName R7
SYMATTR Value 33m
SYMBOL ind2 592 0 R180
WINDOW 0 3 79 Right 2
WINDOW 3 1 44 Right 2
SYMATTR InstName L2
SYMATTR Value 3.8
SYMATTR Type ind
SYMATTR SpiceLine Rpar=5K
SYMBOL res -16 -96 R0
SYMATTR InstName R5
SYMATTR Value 412K
SYMBOL PowerProducts\\LT3748 192 208 R0
SYMATTR InstName U1
SYMBOL cap 16 240 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 4.7n
SYMBOL cap 240 480 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL res 0 160 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 56.2K
SYMBOL voltage -112 -112 R0
SYMATTR InstName V1
SYMATTR Value 48
FLAG -64 336 0
FLAG -160 256 0
FLAG -160 176 0
FLAG -112 0 0
FLAG 256 496 0
FLAG 464 176 0
FLAG 768 0 0
FLAG 576 0 0
FLAG 880 0 0
FLAG -112 -112 IN
FLAG 880 -112 OUT
FLAG -160 96 0
FLAG 128 416 0
FLAG 528 448 0
TEXT 552 -112 Bottom 2 !K1 L1 L2 1
TEXT 672 424 Left 2 !.tran 2.5m startup