* Z:\home\khalils\Downloads\files\data\raw_asc\fra_eg10_LT8609_inverting_probe.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\LT8609.asy)
@1 0 OUTFB delay=250u fstart=2k fend=192k oct=3 fcoarse=6k nmax=1 2 10k 2 10.1k 1 pp0=200m pp1=50m f0=4k f1=16k tavgmin=50u tsettle=50u
&1 0 OUT OUTFB OUT
R3 FB OUT 187K
XU1 BST SW INTVcc RT N001 FB TRSS NC_01 IN IN OUT LT8609 ;pnba BST)SW)INTVCC)RT)SYNC)FB)TR/SS)PG)VIN)EN/UV)GND
L1 SW 0 2.2 Rser=3m
R1 RT OUT 18.2K
C5 OUTFB FB 10p
C1 TRSS OUT 100p
V1 IN 0 12
R2 OUTFB FB 1Meg
C4 0 OUT 22 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
Rload 0 OUT 2.5
C2 INTVcc OUT 1
C3 BST SW .1
.ic V(OUT)=-4.9 V(TRSS)=-1.6 V(INTVCC)=-1.6
.fra
.options trtol=4
.lib LT8609.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 1464 688
WIRE 96 -64 0 -64
WIRE 256 -64 96 -64
WIRE 0 -48 0 -64
WIRE 256 -48 256 -64
WIRE 96 0 96 -64
WIRE 112 0 96 0
WIRE 448 0 400 0
WIRE 496 0 448 0
WIRE 592 0 560 0
WIRE 608 0 592 0
WIRE 0 48 0 32
WIRE 112 96 96 96
WIRE 432 96 400 96
WIRE 464 96 432 96
WIRE 432 192 400 192
WIRE 464 192 464 160
WIRE 464 192 432 192
WIRE 496 192 464 192
WIRE 608 192 576 192
WIRE 720 192 608 192
WIRE 832 192 720 192
WIRE 928 192 832 192
WIRE 944 192 928 192
WIRE 608 208 608 192
WIRE 816 208 784 208
WIRE 720 224 720 192
WIRE 784 224 784 208
WIRE -32 288 -48 288
WIRE 80 288 32 288
WIRE 112 288 80 288
WIRE 448 288 400 288
WIRE 496 288 448 288
WIRE 608 336 608 272
WIRE 656 336 608 336
WIRE 720 336 720 320
WIRE 720 336 656 336
WIRE 784 336 784 320
WIRE 816 336 816 208
WIRE 816 336 784 336
WIRE 832 336 832 192
WIRE 928 336 928 192
WIRE 608 352 608 336
WIRE 720 352 720 336
WIRE -48 384 -48 288
WIRE -16 384 -48 384
WIRE 80 384 64 384
WIRE 112 384 80 384
WIRE 416 384 400 384
WIRE 496 432 496 288
WIRE 608 432 496 432
WIRE 720 432 720 416
WIRE 720 432 608 432
WIRE 608 448 608 432
WIRE -48 528 -48 384
WIRE 416 528 416 384
WIRE 416 528 -48 528
WIRE 608 528 416 528
WIRE 784 528 784 336
WIRE 784 528 608 528
WIRE 832 528 832 400
WIRE 832 528 784 528
WIRE 896 528 832 528
WIRE 928 528 928 416
WIRE 928 528 896 528
SYMBOL cap 704 352 R0
SYMATTR InstName C5
SYMATTR Value 10p
SYMBOL voltage 0 -64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 448 96 R0
SYMATTR InstName C3
SYMATTR Value .1
SYMBOL ind 480 208 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=3m
SYMBOL cap 496 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL res 912 320 R0
SYMATTR InstName Rload
SYMATTR Value 2.5
SYMBOL res 592 336 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL fra 608 272 R0
SYMATTR InstName @1
SYMATTR SpiceLine delay=250u fstart=2k fend=192k oct=3 fcoarse=6k nmax=1 2 10k 2 10.1k 1 pp0=200m pp1=50m f0=4k f1=16k tavgmin=50u tsettle=50u
SYMBOL res 592 432 R0
SYMATTR InstName R3
SYMATTR Value 187K
SYMBOL cap 32 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 100p
SYMBOL fraprobe 800 272 R270
SYMATTR InstName &1
SYMBOL res 80 368 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 18.2K
SYMBOL cap 816 336 R0
SYMATTR InstName C4
SYMATTR Value 22
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C4532X5ROJ47@M" type="X5R"
SYMBOL PowerProducts\\LT8609 256 192 R0
SYMATTR InstName U1
FLAG 0 48 0
FLAG 0 -64 IN
FLAG 448 0 INTVcc
FLAG 80 288 TRSS
FLAG 944 192 0
FLAG 592 0 OUT
FLAG 896 528 OUT
FLAG 80 384 RT
FLAG 448 288 FB
FLAG 432 192 SW
FLAG 432 96 BST
FLAG 656 336 OUTFB
TEXT 104 568 Left 2 !.ic V(OUT)=-4.9 V(TRSS)=-1.6 V(INTVCC)=-1.6
TEXT 728 584 Left 2 !.fra
TEXT 728 552 Left 2 !.options trtol=4