* Z:\home\khalils\Downloads\files\data\raw_asc\LT3959.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\LT3959.asy)
L2 0 N002 15 Rser=25m Cpar=50p
R1 N007 0 27.4K
XU1 N009 N008 N006 N007 N001 N005 0 MP_01 N004 OUT IN N003 0 LT3959 ;pnba Vc)FBX)SS)Rt)SW)_Pgood)GNDK))INTVcc)Drive)Vin)EN/UVLO)SGND
L1 IN N001 15 Rser=25m Cpar=50p
C2 N006 0 .05
C4 N001 N002 4.7 Rser=5m
C1 N009 0 22n Rser=7.5K
D1 N002 OUT MBRS360
R4 IN N005 150K
R2 IN N003 124K
C5 OUT 0 47 x2 Rser=2m
R7 N008 0 15.8K
K1 L1 L2 1
C3 N004 0 4.7
R3 N003 0 121K
R6 OUT N008 105K
Rload OUT 0 8
V1 IN 0 12
.model D D
.lib C:\users\khalils\AppData\Local\LTspice\lib\cmp\standard.dio
.tran 4m startup
.lib LT3959.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1128 680
WIRE -96 -80 -176 -80
WIRE 0 -80 -96 -80
WIRE 240 -80 0 -80
WIRE 400 -80 240 -80
WIRE 528 -80 480 -80
WIRE 544 -80 528 -80
WIRE 640 -80 608 -80
WIRE 720 -80 640 -80
WIRE 816 -80 784 -80
WIRE 864 -80 816 -80
WIRE 944 -80 864 -80
WIRE -176 -64 -176 -80
WIRE -96 -64 -96 -80
WIRE 864 -64 864 -80
WIRE 944 -64 944 -80
WIRE 640 -48 640 -80
WIRE 240 -32 240 -80
WIRE -176 32 -176 16
WIRE -96 32 -96 16
WIRE 80 32 -96 32
WIRE 416 32 400 32
WIRE 496 32 480 32
WIRE 864 32 864 0
WIRE 944 32 944 16
WIRE -96 48 -96 32
WIRE 0 48 0 -80
WIRE 640 64 640 32
WIRE 80 128 0 128
WIRE 528 128 528 -80
WIRE 528 128 400 128
WIRE -96 144 -96 128
WIRE 0 224 -32 224
WIRE 80 224 64 224
WIRE 816 224 816 -80
WIRE 816 224 400 224
WIRE -16 320 -32 320
WIRE 80 320 64 320
WIRE 816 320 816 304
WIRE 816 320 400 320
WIRE 816 336 816 320
WIRE -16 416 -32 416
WIRE 80 416 48 416
WIRE 416 416 400 416
WIRE 816 432 816 416
WIRE 240 496 240 480
SYMBOL res 80 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 27.4K
SYMBOL cap 48 400 R90
WINDOW 39 53 32 VTop 2
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR SpiceLine Rser=7.5K
SYMATTR InstName C1
SYMATTR Value 22n
SYMBOL schottky 720 -64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 800 320 R0
SYMATTR InstName R7
SYMATTR Value 15.8K
SYMBOL res 928 -80 R0
SYMATTR InstName Rload
SYMATTR Value 8
SYMBOL cap 416 48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 4.7
SYMBOL res -112 32 R0
SYMATTR InstName R3
SYMATTR Value 121K
SYMBOL PowerProducts\\LT3959 240 224 R0
SYMATTR InstName U1
SYMBOL cap 848 -64 R0
WINDOW 123 33 76 Left 2
WINDOW 3 31 52 Left 2
SYMATTR Value2 x2
SYMATTR Value 47
SYMATTR InstName C5
SYMATTR SpiceLine Rser=2m
SYMBOL cap 544 -64 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C4
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=5m
SYMBOL res -112 -80 R0
SYMATTR InstName R2
SYMATTR Value 124K
SYMBOL voltage -176 -80 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL ind2 384 -64 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 15
SYMATTR Type ind
SYMATTR SpiceLine Rser=25m Cpar=50p
SYMBOL res -16 32 R0
SYMATTR InstName R4
SYMATTR Value 150K
SYMBOL res 800 208 R0
SYMATTR InstName R6
SYMATTR Value 105K
SYMBOL cap 64 208 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value .05
SYMBOL ind2 624 48 M180
WINDOW 0 36 80 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName L2
SYMATTR Value 15
SYMATTR Type ind
SYMATTR SpiceLine Rser=25m Cpar=50p
FLAG 240 496 0
FLAG -32 416 0
FLAG -32 320 0
FLAG -32 224 0
FLAG 496 32 0
FLAG -176 32 0
FLAG -96 144 0
FLAG -176 -80 IN
FLAG 640 64 0
FLAG 816 432 0
FLAG 864 32 0
FLAG 944 32 0
FLAG 944 -80 OUT
FLAG 416 416 0
TEXT 536 -128 Bottom 2 !K1 L1 L2 1
TEXT 680 488 Left 2 !.tran 4m startup