* Z:\home\khalils\Downloads\files\data\raw_asc\LT8613.asc
* Generated by LTspice 26.0.1 for Windows.
* LT8613 - 42V, 6A Synchronous Step-Down Regulator with Current Sense and 3A Quiescent Current\n5V Step-Down Converter with 6A Output Current Limit\nInput: 5.8V to 42V Output: 5V @ 6A, Fsw = 700kHz
* Note:\n If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n Copyright 2015 Linear Technology Inc. All rights reserved.
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LT8613.asy)
C2 N001 0 1
C1 N005 0 4.7n
C4 OUT 0 100 V=6.3 Irms=0 Rser=0.002 Lser=0
C6 IN 0 10
XU1 NC_01 N005 N006 IN IN NC_02 0 N004 N003 OUT 0 N002 N001 OUT NC_03 N007 0 LT8613 ;pnba Imon)TR/SS)Rt)EN/UV)Vin)Ictrl)PGND)Isp)SW)Isn)Sync)BST)INTVcc)Bias)PG)FB)GND
R3 N007 0 243K
C5 OUT N007 10p
R1 N006 0 60.4K
R2 OUT N007 1Meg
R4 N004 OUT 8m
Rload OUT 0 1.67
C3 N002 N003 .1
V1 IN 0 12
L1 N003 N004 3.3 Ipk=8 Rser=0.0199 Rpar=0 Cpar=0
.tran 4m startup
.lib LT8613.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1924 968
WIRE 0 -64 -96 -64
WIRE 96 -64 0 -64
WIRE 256 -64 96 -64
WIRE -96 -48 -96 -64
WIRE 0 -48 0 -64
WIRE 256 -48 256 -64
WIRE 96 0 96 -64
WIRE 112 0 96 0
WIRE 432 0 400 0
WIRE 512 0 496 0
WIRE -96 48 -96 32
WIRE 0 48 0 16
WIRE 112 96 80 96
WIRE 720 96 400 96
WIRE 432 192 400 192
WIRE 432 208 432 192
WIRE 432 288 432 272
WIRE 432 288 400 288
WIRE 480 288 432 288
WIRE 576 288 560 288
WIRE 592 288 576 288
WIRE 688 288 672 288
WIRE 720 288 720 96
WIRE 720 288 688 288
WIRE 784 288 720 288
WIRE 912 288 784 288
WIRE 784 304 784 288
WIRE 912 304 912 288
WIRE 432 384 400 384
WIRE 784 400 784 368
WIRE 912 400 912 384
WIRE 432 416 432 384
WIRE 576 416 576 288
WIRE 576 416 432 416
WIRE 688 448 688 288
WIRE 688 448 432 448
WIRE 720 464 720 288
WIRE 832 464 720 464
WIRE 32 480 16 480
WIRE 112 480 96 480
WIRE 432 480 432 448
WIRE 432 480 400 480
WIRE 720 480 720 464
WIRE 832 480 832 464
WIRE 112 576 32 576
WIRE 720 576 720 560
WIRE 720 576 400 576
WIRE 832 576 832 544
WIRE 832 576 720 576
WIRE 32 592 32 576
WIRE 720 592 720 576
WIRE 192 640 192 624
WIRE 320 640 320 624
WIRE 32 688 32 672
WIRE 720 688 720 672
SYMBOL res 704 576 R0
SYMATTR InstName R3
SYMATTR Value 243K
SYMBOL cap -16 -48 R0
SYMATTR InstName C6
SYMATTR Value 10
SYMBOL cap 96 464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 4.7n
SYMBOL cap 816 480 R0
SYMATTR InstName C5
SYMATTR Value 10p
SYMBOL res 576 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 8m
SYMBOL cap 416 208 R0
SYMATTR InstName C3
SYMATTR Value .1
SYMBOL LT8613 256 288 R0
SYMATTR InstName U1
SYMBOL voltage -96 -64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 432 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL cap 768 304 R0
SYMATTR InstName C4
SYMATTR Value 100
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0
SYMBOL res 896 288 R0
SYMATTR InstName Rload
SYMATTR Value 1.67
SYMBOL ind 464 304 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 3.3
SYMATTR SpiceLine Ipk=8 Rser=0.0199 Rpar=0 Cpar=0
SYMBOL res 704 464 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 16 576 R0
SYMATTR InstName R1
SYMATTR Value 60.4K
FLAG 192 640 0
FLAG 320 640 0
FLAG 32 688 0
FLAG 16 480 0
FLAG -96 48 0
FLAG 512 0 0
FLAG 784 400 0
FLAG 720 688 0
FLAG 912 400 0
FLAG 912 288 OUT
FLAG -96 -64 IN
FLAG 0 48 0
FLAG 80 96 0
TEXT 872 656 Left 2 !.tran 4m startup
TEXT 360 -96 Bottom 2 ;LT8613 - 42V, 6A Synchronous Step-Down Regulator with Current Sense and 3A Quiescent Current\n5V Step-Down Converter with 6A Output Current Limit\nInput: 5.8V to 42V      Output: 5V @ 6A, Fsw = 700kHz
TEXT -256 712 Left 2 ;Note:\n  If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n  It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n  Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n  Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n  Copyright  2015 Linear Technology Inc. All rights reserved.