* SPICE netlist
V1 IN 0 6
L1 N001 N002 4.7 Rser=19.5m
M1 N001 N003 IN IN SQ4401EY
R1 N011 N010 3.74K
R2 N011 0 40m
M2 N002 N005 N011 N011 AON6266E
R3 N005 N004 10
D1 N002 OUT MBRS360
C2 OUT 0 4.7 m=3
C3 OUT 0 1
R4 OUT N018 226K
R5 N018 0 15K
R6 N031 0 76.8K
R7 N039 N042 8.06K
C4 N042 0 68n
C5 N039 0 2.2n
C6 0 N031 100p
C7 N016 0 1
R8 N037 0 84.5K
R9 N041 0 45.3K
D2 OUT N006 LXHL-BW02
D3 N006 N012 LXHL-BW02
D4 N012 N019 LXHL-BW02
D5 N019 N023 LXHL-BW02
D6 N023 N027 LXHL-BW02
D7 N027 N034 LXHL-BW02
D8 OUT N007 LXHL-BW02
D9 N007 N013 LXHL-BW02
D10 N013 N020 LXHL-BW02
D11 N020 N024 LXHL-BW02
D12 N024 N028 LXHL-BW02
D13 N028 N036 LXHL-BW02
D14 OUT N008 LXHL-BW02
D15 N008 N014 LXHL-BW02
D16 N014 N021 LXHL-BW02
D17 N021 N025 LXHL-BW02
D18 N025 N029 LXHL-BW02
D19 N029 N038 LXHL-BW02
D20 OUT N009 LXHL-BW02
D21 N009 N015 LXHL-BW02
D22 N015 N022 LXHL-BW02
D23 N022 N026 LXHL-BW02
D24 N026 N030 LXHL-BW02
D25 N030 N040 LXHL-BW02
C1 OUT 0 47
R10 N033 0 59K
V2 N035 0 PULSE(0 3.3 0 10n 10n 0.3m 0.5m)
R11 N017 N016 100K
R12 N016 N032 100K
R13 N032 0 20K
XU2 IN N003 N034 N038 N033 N017 N016 0 0 N031 0 N041 N035 N032 N040 N036 N037 N039 N010 N018 0 N004 N016 IN MAX20444B DIM_EXT=1 HDIM=1 SIM_SPEED_MULT=2 ENABLED_CH=4 ;pnba IN)PGATE)OUT1)OUT3)HDSET)FLTB)SCL/IRANGE)SDA/PSEN)LEDGND)RT)GND)IREF)DIM)I2CDIS/RSDT)OUT4)OUT2)FSEN/ISET)COMP)CS)BSTMON)PGND)NDRV)Vcc)EN
.tran 45m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2000 1456
WIRE -936 -728 -1000 -728
WIRE -856 -728 -936 -728
WIRE -760 -728 -856 -728
WIRE -472 -728 -664 -728
WIRE -24 -728 -392 -728
WIRE 24 -728 -24 -728
WIRE 152 -728 88 -728
WIRE 216 -728 152 -728
WIRE 296 -728 216 -728
WIRE 376 -728 296 -728
WIRE 520 -728 376 -728
WIRE 680 -728 520 -728
WIRE 840 -728 680 -728
WIRE 888 -728 840 -728
WIRE 1000 -728 888 -728
WIRE -1000 -696 -1000 -728
WIRE 152 -696 152 -728
WIRE 216 -696 216 -728
WIRE 296 -696 296 -728
WIRE -24 -632 -24 -728
WIRE -1000 -600 -1000 -616
WIRE 152 -600 152 -632
WIRE 216 -600 216 -632
WIRE 296 -600 296 -632
WIRE 520 -600 520 -728
WIRE 680 -600 680 -728
WIRE 840 -600 840 -728
WIRE 1000 -600 1000 -728
WIRE -744 -552 -744 -680
WIRE -616 -552 -744 -552
WIRE -168 -552 -200 -552
WIRE -72 -552 -88 -552
WIRE 520 -488 520 -536
WIRE 680 -488 680 -536
WIRE 840 -488 840 -536
WIRE 1000 -488 1000 -536
WIRE -856 -456 -856 -728
WIRE -616 -456 -856 -456
WIRE -168 -456 -200 -456
WIRE -24 -456 -24 -536
WIRE -24 -456 -88 -456
WIRE -24 -424 -24 -456
WIRE 376 -392 376 -728
WIRE 520 -376 520 -424
WIRE 680 -376 680 -424
WIRE 840 -376 840 -424
WIRE 1000 -376 1000 -424
WIRE -856 -360 -856 -456
WIRE -616 -360 -856 -360
WIRE -24 -312 -24 -344
WIRE -712 -264 -856 -264
WIRE -616 -264 -632 -264
WIRE 376 -264 376 -312
WIRE 376 -264 -200 -264
WIRE 520 -264 520 -312
WIRE 680 -264 680 -312
WIRE 840 -264 840 -312
WIRE 1000 -264 1000 -312
WIRE 376 -216 376 -264
WIRE -856 -168 -856 -264
WIRE -728 -168 -856 -168
WIRE -616 -168 -728 -168
WIRE -728 -152 -728 -168
WIRE 520 -152 520 -200
WIRE 680 -152 680 -200
WIRE 840 -152 840 -200
WIRE 1000 -152 1000 -200
WIRE 376 -104 376 -136
WIRE -616 -72 -648 -72
WIRE -728 -56 -728 -88
WIRE 520 -40 520 -88
WIRE 680 -40 680 -88
WIRE 840 -40 840 -88
WIRE 1000 -40 1000 -88
WIRE -856 24 -856 -168
WIRE -616 24 -856 24
WIRE -120 24 -200 24
WIRE -24 24 -120 24
WIRE -24 40 -24 24
WIRE -120 56 -120 24
WIRE -856 120 -856 104
WIRE -616 120 -856 120
WIRE -856 136 -856 120
WIRE -120 152 -120 120
WIRE -24 152 -24 120
WIRE -712 216 -744 216
WIRE -616 216 -632 216
WIRE 520 216 520 24
WIRE 520 216 -200 216
WIRE -856 232 -856 216
WIRE -616 312 -888 312
WIRE 680 312 680 24
WIRE 680 312 -200 312
WIRE -888 344 -888 312
WIRE -712 408 -744 408
WIRE -616 408 -632 408
WIRE 840 408 840 24
WIRE 840 408 -200 408
WIRE -712 504 -856 504
WIRE -616 504 -712 504
WIRE 1000 504 1000 24
WIRE 1000 504 -200 504
WIRE -856 520 -856 504
WIRE -712 584 -712 504
WIRE -184 600 -200 600
WIRE -72 600 -104 600
WIRE -856 632 -856 600
WIRE -712 696 -712 648
WIRE -504 696 -504 664
WIRE -408 696 -408 664
WIRE -312 696 -312 664
WIRE -856 728 -856 696
FLAG -504 696 0
FLAG -408 696 0
FLAG -312 696 0
FLAG -1000 -600 0
FLAG -24 -312 0
FLAG 152 -600 0
FLAG 216 -600 0
FLAG 296 -600 0
FLAG 376 -104 0
FLAG -936 -728 IN
FLAG 888 -728 OUT
FLAG -856 728 0
FLAG -712 696 0
FLAG -24 152 0
FLAG -120 152 0
FLAG -728 -56 0
FLAG -744 408 0
FLAG -72 600 0
FLAG -744 216 0
FLAG -888 424 0
FLAG -648 -72 0
FLAG -856 232 0
SYMBOL voltage -1000 -712 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL ind -488 -712 R270
SYMATTR InstName L1
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=19.5m
SYMBOL pmos -664 -680 M270
SYMATTR InstName M1
SYMATTR Value SQ4401EY
SYMBOL res -72 -472 R90
SYMATTR InstName R1
SYMATTR Value 3.74K
SYMBOL res -40 -440 R0
SYMATTR InstName R2
SYMATTR Value 40m
SYMBOL nmos -72 -632 R0
SYMATTR InstName M2
SYMATTR Value AON6266E
SYMBOL res -72 -568 R90
SYMATTR InstName R3
SYMATTR Value 10
SYMBOL schottky 24 -712 R270
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 200 -696 R0
SYMATTR Value2 m=3
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL cap 280 -696 R0
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL res 360 -408 R0
SYMATTR InstName R4
SYMATTR Value 226K
SYMBOL res 360 -232 R0
SYMATTR InstName R5
SYMATTR Value 15K
SYMBOL res -40 24 R0
SYMATTR InstName R6
SYMATTR Value 76.8K
SYMBOL res -872 504 R0
SYMATTR InstName R7
SYMATTR Value 8.06K
SYMBOL cap -872 632 R0
SYMATTR InstName C4
SYMATTR Value 68n
SYMBOL cap -728 584 R0
SYMATTR InstName C5
SYMATTR Value 2.2n
SYMBOL cap -136 120 M180
SYMATTR InstName C6
SYMATTR Value 100p
SYMBOL cap -744 -152 R0
SYMATTR InstName C7
SYMATTR Value 1
SYMBOL res -616 392 R90
SYMATTR InstName R8
SYMATTR Value 84.5K
SYMBOL res -200 584 M90
SYMATTR InstName R9
SYMATTR Value 45.3K
SYMBOL LED 504 -600 R0
SYMATTR InstName D2
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 504 -488 R0
SYMATTR InstName D3
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 504 -376 R0
SYMATTR InstName D4
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 504 -264 R0
SYMATTR InstName D5
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 504 -152 R0
SYMATTR InstName D6
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 504 -40 R0
SYMATTR InstName D7
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -600 R0
SYMATTR InstName D8
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -488 R0
SYMATTR InstName D9
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -376 R0
SYMATTR InstName D10
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -264 R0
SYMATTR InstName D11
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -152 R0
SYMATTR InstName D12
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 664 -40 R0
SYMATTR InstName D13
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -600 R0
SYMATTR InstName D14
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -488 R0
SYMATTR InstName D15
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -376 R0
SYMATTR InstName D16
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -264 R0
SYMATTR InstName D17
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -152 R0
SYMATTR InstName D18
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 824 -40 R0
SYMATTR InstName D19
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -600 R0
SYMATTR InstName D20
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -488 R0
SYMATTR InstName D21
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -376 R0
SYMATTR InstName D22
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -264 R0
SYMATTR InstName D23
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -152 R0
SYMATTR InstName D24
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 984 -40 R0
SYMATTR InstName D25
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 136 -696 R0
SYMATTR InstName C1
SYMATTR Value 47
SYMBOL res -616 200 R90
SYMATTR InstName R10
SYMATTR Value 59K
SYMBOL voltage -888 328 R0
SYMATTR InstName V2
SYMATTR Value PULSE(0 3.3 0 10n 10n 0.3m 0.5m)
SYMBOL res -616 -280 R90
SYMATTR InstName R11
SYMATTR Value 100K
SYMBOL res -872 8 R0
SYMATTR InstName R12
SYMATTR Value 100K
SYMBOL res -872 120 R0
SYMATTR InstName R13
SYMATTR Value 20K
SYMBOL MAX20444B -408 24 R0
SYMATTR InstName U2