* SPICE netlist
XU1 N013 N012 N010 MP_01 MP_02 N007 N007 N007 0 N006 N005 N004 MP_03 MP_04 N003 N002 COM MP_05 N017 N016 N001 N015 N014 N011 N008 COM N001 N001 LTM9100 OVRTRY=1 UVRTRY=1 OCRTRY=1 ;pnba _PG)_ALERT)EN)))ON)VL)Vcc)GND)_PG2)_ALERT2)EN2)))PGIO)VS)Vee))SS)TMR)Vcc2)Sense+)Gate)Drain)Ramp)OV)UVH)UVL
V1 N010 0 PULSE(0 3.3 1m 5n 5n 1 2)
V2 N007 0 5
MQ1 VBUS+ N014 N015 N015 IRF1310
R1 N015 COM .008
R2 VBUS+ N011 1Meg
R3 N009 N008 1K
C1 VBUS+ N009 47n
C2 COM VBUS- 1500
V3 VBUS+ VBUS- 48
R4 N014 N018 10
C3 N018 COM 47n
R5 N001 N003 10K
Visodiff COM 0 0
R6 COM VBUS- 2Meg
.tran 500m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1776 720
WIRE -40 -360 -232 -360
WIRE 376 -360 -40 -360
WIRE -40 -344 -40 -360
WIRE -232 -248 -232 -360
WIRE -136 -248 -136 -264
WIRE -40 -248 -40 -264
WIRE 56 -248 56 -264
WIRE 152 -248 152 -264
WIRE 248 -248 248 -264
WIRE -568 -216 -600 -216
WIRE -456 -216 -488 -216
WIRE -440 -216 -456 -216
WIRE 376 -216 376 -360
WIRE 376 -216 360 -216
WIRE -456 -168 -456 -216
WIRE -440 -168 -456 -168
WIRE 376 -168 376 -216
WIRE 376 -168 360 -168
WIRE 424 -168 408 -168
WIRE 520 -168 504 -168
WIRE 616 -168 584 -168
WIRE 888 -168 616 -168
WIRE -456 -120 -456 -168
WIRE -440 -120 -456 -120
WIRE 392 -120 360 -120
WIRE -440 -72 -888 -72
WIRE 408 -72 408 -168
WIRE 408 -72 360 -72
WIRE 456 -72 440 -72
WIRE 616 -72 616 -168
WIRE 616 -72 536 -72
WIRE -888 -56 -888 -72
WIRE 616 -56 616 -72
WIRE -440 -24 -456 -24
WIRE 440 -24 440 -72
WIRE 440 -24 360 -24
WIRE 888 8 888 -168
WIRE -440 24 -456 24
WIRE 408 24 360 24
WIRE 568 24 408 24
WIRE -888 40 -888 24
WIRE -440 72 -456 72
WIRE 616 72 616 40
WIRE 616 72 360 72
WIRE 408 88 408 24
WIRE 616 88 616 72
WIRE -40 120 -40 104
WIRE 152 120 152 104
WIRE -232 136 -232 104
WIRE 408 184 408 168
WIRE 616 184 616 168
WIRE 408 264 408 248
WIRE 616 264 616 232
WIRE 744 264 744 232
WIRE -328 280 -360 280
WIRE -200 280 -248 280
WIRE 616 360 616 328
WIRE 744 360 744 344
WIRE 744 360 616 360
WIRE 888 360 888 88
WIRE 888 360 744 360
FLAG -888 40 0
FLAG -600 -216 0
FLAG -456 72 0
FLAG 888 -168 VBUS+
FLAG 888 360 VBUS-
FLAG -360 280 0
FLAG -232 136 COM
FLAG 392 -120 COM
FLAG 616 184 COM
FLAG 408 264 COM
FLAG 744 232 COM
FLAG 616 232 COM
FLAG -200 280 COM
SYMBOL LTM9100 -40 -88 R0
SYMATTR Value2 OVRTRY=1 UVRTRY=1 OCRTRY=1
SYMATTR InstName U1
SYMBOL voltage -888 -72 R0
SYMATTR Value PULSE(0 3.3 1m 5n 5n 1 2)
SYMATTR InstName V1
SYMBOL voltage -472 -216 M270
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL nmos 568 -56 R0
SYMATTR InstName Q1
SYMATTR Value IRF1310
SYMBOL res 600 72 R0
SYMATTR InstName R1
SYMATTR Value .008
SYMBOL res 552 -88 R90
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res 520 -184 R90
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL cap 584 -184 R90
SYMATTR InstName C1
SYMATTR Value 47n
SYMBOL cap 600 264 R0
SYMATTR InstName C2
SYMATTR Value 1500u
SYMBOL voltage 888 -8 R0
SYMATTR InstName V3
SYMATTR Value 48
SYMBOL res 392 72 R0
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL cap 392 184 R0
SYMATTR Value 47n
SYMATTR InstName C3
SYMBOL res -56 -360 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL voltage -232 280 R90
SYMATTR InstName Visodiff
SYMATTR Value 0
SYMBOL res 728 248 R0
SYMATTR InstName R6
SYMATTR Value 2Meg