* SPICE netlist
R1 N005 N006 2m
R2 N002 N003 2m
C1 N009 N004 0.1
C2 N006 0 200 Rser=.01
C3 N003 0 270 Rser=.01
C4 N002 0 10 Rser=.01
C5 N025 0 1
C6 N016 0 3.3
R3 N023 0 12.1K
R4 IN N023 226K
R5 N026 0 12.1K
R6 N002 N026 464K
R7 N022 0 12.1K
R8 OUT N022 68.1K
R9 N015 0 12.1K
R10 N006 N015 130K
R11 N038 0 61.9K
C7 N031 0 10n
C8 N039 0 15n
R12 N030 N039 4.32K
C9 N041 0 100n
R13 N029 N041 4.32K
R14 N040 0 37.4K
R15 N002 N017 1.5K
R16 N003 N018 1.5K
R17 N005 N020 1.5K
R18 N006 N021 1.5K
L1 N004 N005 10 Rser=60m
R19 N024 N025 100k
R20 N028 N025 100k
R21 N033 0 100K
M1 N004 N011 0 0 IPD220N06L3
M2 N003 N019 N004 N004 IPD220N06L3
D1 N016 N013 MBR20100CT
C10 OUT 0 10
R23 N034 0 88.7K
R24 N035 0 22.6K
R25 N037 0 22.6K
R26 N036 0 37.4K
C11 N037 0 10n
C12 N036 0 10n
M3 N006 N010 N007 N007 IPD220N06L3
M4 OUT N010 N007 N007 IPD220N06L3
M5 N002 N008 N001 N001 IPD220N06L3
M6 IN N008 N001 N001 IPD220N06L3
R27 N027 N025 100k
R28 N008 N012 20K
C13 N012 0 10p
R29 N010 N014 10K
C14 N014 0 1n
C15 N034 0 10n
C17 N035 0 10n
C18 N032 0 300n
V1 IN 0 48
Rload OUT 0 1.5
R22 N009 N013 1
C19 OUT 0 5m
XU1 N017 N018 N023 N026 N038 N034 N035 N029 N031 N030 N036 N037 N040 N015 N022 N033 NC_01 N020 N021 N028 N025 N024 0 N027 0 N032 N011 N016 IN N004 N019 N009 IN N007 N010 N002 N001 N008 LT8228 ;pnba SNS1P)SNS1N)UV1)FB1)IMON1)ISET1N)ISET2N)VC1)SS)VC2)ISET1P)ISET2P)IMON2)FB2)UV2)RT)ISHARE)SNS2P)SNS2N)IGND)INTVcc)DRXN)SYNC)_FAULT)GND)TMR)BG)Drvcc)BIAS)SW)TG)BST)ENABLE)DS2)DG2)V1D)DS1)DG1
.tran 8m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2672 1632
WIRE -536 -784 -536 -816
WIRE -392 -784 -392 -816
WIRE -1304 -640 -1336 -640
WIRE -1224 -640 -1304 -640
WIRE -1000 -640 -1224 -640
WIRE -968 -640 -1000 -640
WIRE -792 -640 -872 -640
WIRE -712 -640 -792 -640
WIRE -600 -640 -616 -640
WIRE -536 -640 -536 -720
WIRE -536 -640 -600 -640
WIRE -504 -640 -536 -640
WIRE -488 -640 -504 -640
WIRE -392 -640 -392 -720
WIRE -392 -640 -408 -640
WIRE -216 -640 -296 -640
WIRE -120 -640 -216 -640
WIRE 72 -640 -120 -640
WIRE 136 -640 72 -640
WIRE 264 -640 216 -640
WIRE 280 -640 264 -640
WIRE 456 -640 360 -640
WIRE 616 -640 456 -640
WIRE 696 -640 616 -640
WIRE 840 -640 792 -640
WIRE 888 -640 840 -640
WIRE 1032 -640 984 -640
WIRE 1096 -640 1032 -640
WIRE 1208 -640 1096 -640
WIRE 1320 -640 1208 -640
WIRE 1336 -640 1320 -640
WIRE -120 -624 -120 -640
WIRE 1096 -624 1096 -640
WIRE 1208 -624 1208 -640
WIRE 1336 -624 1336 -640
WIRE -1336 -608 -1336 -640
WIRE 616 -608 616 -640
WIRE 72 -560 72 -640
WIRE -888 -544 -888 -592
WIRE -696 -544 -696 -592
WIRE -696 -544 -888 -544
WIRE -120 -544 -120 -560
WIRE -24 -544 -120 -544
WIRE -888 -528 -888 -544
WIRE -24 -528 -24 -544
WIRE 776 -528 776 -592
WIRE 904 -528 904 -592
WIRE 904 -528 776 -528
WIRE 1096 -528 1096 -560
WIRE 1208 -528 1208 -560
WIRE 1336 -528 1336 -544
WIRE -504 -512 -504 -640
WIRE -408 -512 -408 -640
WIRE 264 -512 264 -640
WIRE 360 -512 360 -640
WIRE 456 -512 456 -640
WIRE 616 -512 616 -544
WIRE 904 -512 904 -528
WIRE -1336 -496 -1336 -528
WIRE 168 -480 120 -480
WIRE -888 -432 -888 -448
WIRE -24 -416 -24 -448
WIRE 904 -400 904 -432
WIRE 456 -368 456 -432
WIRE 504 -368 456 -368
WIRE 600 -368 584 -368
WIRE -888 -352 -888 -368
WIRE -24 -320 -24 -352
WIRE -8 -320 -24 -320
WIRE 72 -320 72 -464
WIRE 72 -320 56 -320
WIRE 120 -320 72 -320
WIRE 904 -304 904 -336
WIRE -600 -288 -600 -640
WIRE -600 -288 -1096 -288
WIRE 776 -288 776 -528
WIRE 776 -288 552 -288
WIRE -792 -256 -792 -640
WIRE -696 -256 -696 -544
WIRE -600 -256 -600 -288
WIRE -504 -256 -504 -432
WIRE -408 -256 -408 -432
WIRE -312 -256 -312 -592
WIRE -216 -256 -216 -640
WIRE -120 -256 -120 -544
WIRE -24 -256 -24 -320
WIRE 72 -256 72 -320
WIRE 168 -256 168 -480
WIRE 264 -256 264 -432
WIRE 360 -256 360 -432
WIRE 456 -256 456 -368
WIRE 552 -256 552 -288
WIRE -1000 -112 -1000 -640
WIRE -856 -112 -1000 -112
WIRE 840 -112 840 -640
WIRE 840 -112 616 -112
WIRE 1032 -112 1032 -640
WIRE -1224 -32 -1224 -640
WIRE -1096 -32 -1096 -288
WIRE -1000 -16 -1000 -112
WIRE -856 -16 -1000 -16
WIRE 1032 -16 1032 -32
WIRE 1032 -16 616 -16
WIRE 1032 0 1032 -16
WIRE -1224 80 -1224 48
WIRE -856 80 -1224 80
WIRE 648 80 616 80
WIRE 760 80 728 80
WIRE 1032 96 1032 80
WIRE -1096 176 -1096 48
WIRE -856 176 -1096 176
WIRE 648 176 616 176
WIRE 760 176 760 80
WIRE 760 176 728 176
WIRE -1224 192 -1224 80
WIRE -1096 192 -1096 176
WIRE -1224 288 -1224 272
WIRE -1096 288 -1096 272
WIRE 648 288 616 288
WIRE 760 288 760 176
WIRE 760 288 728 288
WIRE -792 464 -792 448
WIRE -456 496 -456 448
WIRE -168 496 -168 448
WIRE -72 496 -72 448
WIRE 24 496 24 448
WIRE 120 496 120 448
WIRE 552 496 552 448
WIRE 760 496 760 288
WIRE 760 496 552 496
WIRE -760 544 -856 544
WIRE -696 544 -696 448
WIRE -696 544 -760 544
WIRE -552 544 -552 448
WIRE -552 544 -648 544
WIRE 280 544 280 448
WIRE 392 544 280 544
WIRE 456 544 456 448
WIRE 520 544 456 544
WIRE 632 544 520 544
WIRE 760 560 760 496
WIRE -856 576 -856 544
WIRE -760 576 -760 544
WIRE -648 576 -648 544
WIRE -552 576 -552 544
WIRE 280 576 280 544
WIRE 392 576 392 544
WIRE 520 576 520 544
WIRE 632 576 632 544
WIRE -360 608 -360 448
WIRE -168 608 -168 576
WIRE -72 608 -72 560
WIRE 24 608 24 560
WIRE 120 608 120 576
WIRE 760 656 760 624
WIRE -856 672 -856 640
WIRE -760 672 -760 656
WIRE -648 672 -648 640
WIRE -552 672 -552 656
WIRE 280 672 280 656
WIRE 392 672 392 640
WIRE 520 672 520 656
WIRE 632 672 632 640
WIRE -360 704 -360 688
WIRE -264 704 -264 448
WIRE -168 704 -168 672
WIRE -456 720 -456 576
WIRE -456 816 -456 784
WIRE -264 816 -264 784
FLAG -536 -816 0
FLAG -392 -816 0
FLAG 616 -512 0
FLAG 120 -320 0
FLAG 760 656 0
FLAG -1224 288 0
FLAG -1096 288 0
FLAG 1032 96 0
FLAG 600 -368 0
FLAG 1096 -528 0
FLAG 904 -304 0
FLAG -888 -352 0
FLAG 1208 -528 0
FLAG -1336 -496 0
FLAG -1304 -640 IN
FLAG 1336 -528 0
FLAG 1320 -640 OUT
FLAG -792 464 0
FLAG -856 672 0
FLAG -760 672 0
FLAG -648 672 0
FLAG -552 672 0
FLAG -456 816 0
FLAG -360 704 0
FLAG -264 816 0
FLAG -168 704 0
FLAG -72 608 0
FLAG 24 608 0
FLAG 120 608 0
FLAG 280 672 0
FLAG 392 672 0
FLAG 520 672 0
FLAG 632 672 0
SYMBOL res 264 -624 R270
SYMATTR InstName R1
SYMATTR Value 2m
SYMBOL res -504 -624 R270
SYMATTR InstName R2
SYMATTR Value 2m
SYMBOL cap -136 -560 M180
SYMATTR InstName C1
SYMATTR Value 0.1
SYMBOL cap 600 -608 R0
SYMATTR InstName C2
SYMATTR Value 200
SYMATTR SpiceLine Rser=.01
SYMBOL cap -408 -720 M180
SYMATTR Value 270
SYMATTR InstName C3
SYMATTR SpiceLine Rser=.01
SYMBOL cap -552 -720 M180
SYMATTR InstName C4
SYMATTR Value 10
SYMATTR SpiceLine Rser=.01
SYMBOL cap 744 560 R0
SYMATTR InstName C5
SYMATTR Value 1
SYMBOL cap -8 -336 M90
SYMATTR InstName C6
SYMATTR Value 3.3
SYMBOL res -1240 176 R0
SYMATTR InstName R3
SYMATTR Value 12.1K
SYMBOL res -1240 -48 R0
SYMATTR InstName R4
SYMATTR Value 226K
SYMBOL res -1112 176 R0
SYMATTR InstName R5
SYMATTR Value 12.1K
SYMBOL res -1112 -48 R0
SYMATTR InstName R6
SYMATTR Value 464K
SYMBOL res 1016 -16 R0
SYMATTR InstName R7
SYMATTR Value 12.1K
SYMBOL res 1016 -128 R0
SYMATTR InstName R8
SYMATTR Value 68.1K
SYMBOL res 488 -352 R270
SYMATTR InstName R9
SYMATTR Value 12.1K
SYMBOL res 440 -528 R0
SYMATTR InstName R10
SYMATTR Value 130K
SYMBOL res -376 592 R0
SYMATTR InstName R11
SYMATTR Value 61.9K
SYMBOL cap -88 496 R0
SYMATTR InstName C7
SYMATTR Value 10n
SYMBOL cap -184 608 R0
SYMATTR InstName C8
SYMATTR Value 15n
SYMBOL res -184 480 R0
SYMATTR InstName R12
SYMATTR Value 4.32K
SYMBOL cap -472 720 R0
SYMATTR InstName C9
SYMATTR Value 100n
SYMBOL res -472 480 R0
SYMATTR InstName R13
SYMATTR Value 4.32K
SYMBOL res -280 688 R0
SYMATTR InstName R14
SYMATTR Value 37.4K
SYMBOL res -520 -528 R0
SYMATTR InstName R15
SYMATTR Value 1.5K
SYMBOL res -424 -528 R0
SYMATTR InstName R16
SYMATTR Value 1.5K
SYMBOL res 248 -528 R0
SYMATTR InstName R17
SYMATTR Value 1.5K
SYMBOL res 344 -528 R0
SYMATTR InstName R18
SYMATTR Value 1.5K
SYMBOL ind 120 -624 R270
SYMATTR InstName L1
SYMATTR Value 10
SYMATTR SpiceLine Rser=60m
SYMBOL res 632 96 R270
SYMATTR InstName R19
SYMATTR Value 100k
SYMBOL res 632 272 M90
SYMATTR InstName R20
SYMATTR Value 100k
SYMBOL res 104 480 R0
SYMATTR InstName R21
SYMATTR Value 100K
SYMBOL nmos 120 -560 M0
SYMATTR InstName M1
SYMATTR Value IPD220N06L3
SYMBOL nmos -392 -592 R270
SYMATTR InstName M2
SYMATTR Value IPD220N06L3
SYMBOL schottky -8 -352 R180
SYMATTR InstName D1
SYMATTR Value MBR20100CT
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1080 -624 R0
SYMATTR InstName C10
SYMATTR Value 10
SYMBOL res -776 560 R0
SYMATTR InstName R23
SYMATTR Value 88.7K
SYMBOL res -568 560 R0
SYMATTR InstName R24
SYMATTR Value 22.6K
SYMBOL res 504 560 R0
SYMATTR InstName R25
SYMATTR Value 22.6K
SYMBOL res 264 560 R0
SYMATTR InstName R26
SYMATTR Value 37.4K
SYMBOL cap 616 576 R0
SYMATTR InstName C11
SYMATTR Value 10n
SYMBOL cap 376 576 R0
SYMATTR InstName C12
SYMATTR Value 10n
SYMBOL nmos 696 -592 R270
SYMATTR InstName M3
SYMATTR Value IPD220N06L3
SYMBOL nmos 984 -592 M270
SYMATTR InstName M4
SYMATTR Value IPD220N06L3
SYMBOL nmos -616 -592 M270
SYMATTR InstName M5
SYMATTR Value IPD220N06L3
SYMBOL nmos -968 -592 R270
SYMATTR InstName M6
SYMATTR Value IPD220N06L3
SYMBOL res 632 192 R270
SYMATTR InstName R27
SYMATTR Value 100k
SYMBOL res -904 -544 R0
SYMATTR InstName R28
SYMATTR Value 20K
SYMBOL cap -904 -432 R0
SYMATTR InstName C13
SYMATTR Value 10p
SYMBOL res 888 -528 R0
SYMATTR InstName R29
SYMATTR Value 10K
SYMBOL cap 888 -400 R0
SYMATTR InstName C14
SYMATTR Value 1n
SYMBOL cap -872 576 R0
SYMATTR InstName C15
SYMATTR Value 10n
SYMBOL cap -664 576 R0
SYMATTR InstName C17
SYMATTR Value 10n
SYMBOL cap 8 496 R0
SYMATTR InstName C18
SYMATTR Value 300n
SYMBOL voltage -1336 -624 R0
SYMATTR Value 48
SYMATTR InstName V1
SYMBOL res 1320 -640 R0
SYMATTR InstName Rload
SYMATTR Value 1.5
SYMBOL res -40 -544 R0
SYMATTR InstName R22
SYMATTR Value 1
SYMBOL polcap 1192 -624 R0
SYMATTR InstName C19
SYMATTR Value 5m
SYMBOL LT8228 -120 80 R0
SYMATTR InstName U1