* SPICE netlist
V1 IN1 0 PWL(0 0 100u 5 0.4m 5 +10u 4.5 +200u 4.5 +10u 5 1.3m 5 +1u 6.5 +1u 5 2m 5 +10u 0 +200u 0 +10u 5)
MQ1 IN1 N010 N009 N009 Si4862DY
R1 IN1 N014 24.9K
R2 N014 N016 232
R3 N016 0 1.47K
L1 IN1 N011 4.7 Rser=175m Rpar=2K
C1 N012 0 1
C2 OUT 0 22 Rser=10m
XU1 N010 N012 IN1 N011 0 N016 N014 N015 N013 OUT LT4351 ;pnba Gate)Vdd)Vin)SW)GND)OV)UV)_Fault)Status)OUT
R4 IN2 N006 24.9K
R5 N006 N008 232
R6 N008 0 1.47K
L2 IN2 N003 4.7 Rser=175m Rpar=2K
C3 N004 0 1
XU2 N002 N004 IN2 N003 0 N008 N006 N007 N005 OUT LT4351 ;pnba Gate)Vdd)Vin)SW)GND)OV)UV)_Fault)Status)OUT
R7 N015 IN1 10K
R8 N013 IN1 10K
R9 N005 IN2 10K
R10 N007 IN2 10K
V2 IN2 0 PWL(0 0 160u 5 0.8m 5 +10u 4.5 +200u 4.5 +10u 5)
MQ2 OUT N010 N009 N009 Si4862DY
MQ3 OUT N002 N001 N001 Si4862DY
MQ4 IN2 N002 N001 N001 Si4862DY
D1 0 N011 MBR0530L
D2 N011 N012 MBR0530L
D3 N003 N004 MBR0530L
D4 0 N003 MBR0530L
Rload OUT 0 100
.tran 2.5m

* LTspice schematic (.asc)
Version 4
SHEET 1 2176 1376
WIRE 944 -688 336 -688
WIRE 176 -640 -1088 -640
WIRE 336 -640 336 -688
WIRE 336 -640 176 -640
WIRE 512 -640 336 -640
WIRE 576 -640 512 -640
WIRE 704 -640 672 -640
WIRE 864 -640 800 -640
WIRE 992 -640 864 -640
WIRE -1088 -624 -1088 -640
WIRE 336 -624 336 -640
WIRE 656 -544 656 -592
WIRE 688 -544 656 -544
WIRE 720 -544 720 -592
WIRE 720 -544 688 -544
WIRE -1088 -528 -1088 -544
WIRE 512 -528 512 -640
WIRE 592 -528 512 -528
WIRE 864 -528 864 -640
WIRE 864 -528 784 -528
WIRE 240 -496 224 -496
WIRE 336 -496 336 -544
WIRE 336 -496 304 -496
WIRE 384 -496 336 -496
WIRE 512 -496 448 -496
WIRE 592 -480 592 -528
WIRE 688 -480 688 -544
WIRE 784 -480 784 -528
WIRE 512 -400 512 -496
WIRE 512 -400 496 -400
WIRE 528 -400 512 -400
WIRE 848 -368 832 -368
WIRE 944 -368 944 -688
WIRE 944 -368 928 -368
WIRE 176 -352 176 -640
WIRE 336 -320 336 -496
WIRE 528 -320 336 -320
WIRE 176 -240 176 -272
WIRE 304 -240 176 -240
WIRE 176 -224 176 -240
WIRE 304 -224 304 -240
WIRE 528 -224 304 -224
WIRE 848 -192 832 -192
WIRE 944 -192 944 -368
WIRE 944 -192 928 -192
WIRE 176 -128 176 -144
WIRE 528 -128 176 -128
WIRE 176 -112 176 -128
WIRE 688 -64 688 -80
WIRE 176 -16 176 -32
WIRE 944 16 336 16
WIRE 176 64 -1088 64
WIRE 336 64 336 16
WIRE 336 64 176 64
WIRE 512 64 336 64
WIRE 576 64 512 64
WIRE 704 64 672 64
WIRE 864 64 800 64
WIRE 992 64 992 -640
WIRE 992 64 864 64
WIRE 1088 64 992 64
WIRE -1088 80 -1088 64
WIRE 336 80 336 64
WIRE 992 80 992 64
WIRE 1088 80 1088 64
WIRE 512 160 512 64
WIRE 592 160 512 160
WIRE 656 160 656 112
WIRE 688 160 656 160
WIRE 720 160 720 112
WIRE 720 160 688 160
WIRE 864 160 864 64
WIRE 864 160 784 160
WIRE -1088 176 -1088 160
WIRE 992 176 992 144
WIRE 1088 176 1088 160
WIRE 240 208 224 208
WIRE 336 208 336 160
WIRE 336 208 304 208
WIRE 384 208 336 208
WIRE 512 208 448 208
WIRE 592 224 592 160
WIRE 688 224 688 160
WIRE 784 224 784 160
WIRE 512 304 512 208
WIRE 512 304 496 304
WIRE 528 304 512 304
WIRE 848 336 832 336
WIRE 944 336 944 16
WIRE 944 336 928 336
WIRE 176 368 176 64
WIRE 336 384 336 208
WIRE 528 384 336 384
WIRE 176 464 176 448
WIRE 288 464 176 464
WIRE 176 480 176 464
WIRE 288 480 288 464
WIRE 528 480 288 480
WIRE 848 512 832 512
WIRE 944 512 944 336
WIRE 944 512 928 512
WIRE 176 576 176 560
WIRE 528 576 176 576
WIRE 176 592 176 576
WIRE 688 656 688 624
WIRE 176 688 176 672
FLAG -1088 176 0
FLAG 688 656 0
FLAG 176 688 0
FLAG 224 208 0
FLAG 432 304 0
FLAG 992 176 0
FLAG 1088 176 0
FLAG -1088 64 IN1
FLAG 1088 64 OUT
FLAG -1088 -528 0
FLAG 688 -64 0
FLAG 176 -16 0
FLAG 224 -496 0
FLAG 432 -400 0
FLAG -1088 -640 IN2
SYMBOL voltage -1088 64 R0
SYMATTR Value PWL(0 0 100u 5 0.4m 5 +10u 4.5 +200u 4.5 +10u 5 1.3m 5 +1u 6.5 +1u 5 2m 5 +10u 0 +200u 0 +10u 5)
SYMATTR InstName V1
SYMBOL nmos 576 112 R270
SYMATTR InstName Q1
SYMATTR Value Si4862DY
SYMBOL res 160 352 R0
SYMATTR InstName R1
SYMATTR Value 24.9K
SYMBOL res 160 464 R0
SYMATTR InstName R2
SYMATTR Value 232
SYMBOL res 160 576 R0
SYMATTR InstName R3
SYMATTR Value 1.47K
SYMBOL ind 320 64 R0
SYMATTR InstName L1
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=175m Rpar=2K
SYMBOL cap 496 288 R90
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL cap 976 80 R0
SYMATTR InstName C2
SYMATTR Value 22
SYMATTR SpiceLine Rser=10m
SYMBOL LT4351 688 480 R0
SYMATTR InstName U1
SYMBOL res 192 -368 M0
SYMATTR InstName R4
SYMATTR Value 24.9K
SYMBOL res 192 -240 M0
SYMATTR InstName R5
SYMATTR Value 232
SYMBOL res 192 -128 M0
SYMATTR InstName R6
SYMATTR Value 1.47K
SYMBOL ind 320 -640 R0
SYMATTR InstName L2
SYMATTR Value 4.7
SYMATTR SpiceLine Rser=175m Rpar=2K
SYMBOL cap 496 -416 R90
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL LT4351 688 -224 R0
SYMATTR InstName U2
SYMBOL res 832 528 R270
SYMATTR InstName R7
SYMATTR Value 10K
SYMBOL res 832 352 R270
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL res 832 -352 R270
SYMATTR InstName R9
SYMATTR Value 10K
SYMBOL res 832 -176 R270
SYMATTR InstName R10
SYMATTR Value 10K
SYMBOL voltage -1088 -640 R0
SYMATTR Value PWL(0 0 160u 5 0.8m 5 +10u 4.5 +200u 4.5 +10u 5)
SYMATTR InstName V2
SYMBOL nmos 800 112 M270
SYMATTR InstName Q2
SYMATTR Value Si4862DY
SYMBOL nmos 800 -592 M270
SYMATTR InstName Q3
SYMATTR Value Si4862DY
SYMBOL nmos 576 -592 R270
SYMATTR InstName Q4
SYMATTR Value Si4862DY
SYMBOL schottky 240 192 M90
SYMATTR InstName D1
SYMATTR Value MBR0530L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 384 192 M90
SYMATTR InstName D2
SYMATTR Value MBR0530L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 384 -512 M90
SYMATTR InstName D3
SYMATTR Value MBR0530L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 240 -512 M90
SYMATTR InstName D4
SYMATTR Value MBR0530L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1072 64 R0
SYMATTR InstName Rload
SYMATTR Value 100