* SPICE netlist
MQ1 IN N003 N002 N002 IRF7303
MQ2 N008 N009 N011 N011 IRF7303
V1 IN 0 16
R1 N011 0 25m
C1 N010 0 .001
C2 N015 N014 .001
R2 N014 N012 100
R3 N012 0 1K
R4 N012 OUT 1K
C3 N006 0 150p
R5 N007 N006 52.3K
L1 N002 N008 300
L2 N004 0 300
D1 0 N005 MBRS360
L3 N005 OUT 10
C4 OUT 0 100 Rser=50m
C5 N002 N001 .5
D2 IN N001 1N5817
D3 N004 N005 MBRS360
XU1 IN 0 0 0 N007 N006 MP_01 N010 N012 N015 N011 N013 IN 0 N009 MP_02 MP_03 N002 N003 N001 LT3781 ;pnba _SHDN)OVLO)THERM)GSND)5Vref)FSET))SS)FB)Vc)Sense)SG)Vcc)PGND)GB)))BSTREF)TG)Vbst
Rload 0 OUT 5
K1 L1 L2 1.
.tran .5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1520 560
WIRE -472 -280 -568 -280
WIRE -104 -280 -472 -280
WIRE -40 -280 -104 -280
WIRE 184 -280 -40 -280
WIRE -568 -264 -568 -280
WIRE 184 -248 184 -280
WIRE -472 -216 -472 -280
WIRE -440 -216 -472 -216
WIRE -40 -216 -152 -216
WIRE -8 -216 -40 -216
WIRE 72 -216 56 -216
WIRE -568 -168 -568 -184
WIRE -440 -168 -456 -168
WIRE 136 -168 -152 -168
WIRE -440 -120 -456 -120
WIRE 72 -120 72 -216
WIRE 72 -120 -152 -120
WIRE 184 -120 184 -152
WIRE 184 -120 72 -120
WIRE 328 -120 232 -120
WIRE 440 -120 392 -120
WIRE 504 -120 440 -120
WIRE 616 -120 584 -120
WIRE 648 -120 616 -120
WIRE 760 -120 648 -120
WIRE 184 -104 184 -120
WIRE 232 -104 232 -120
WIRE 648 -104 648 -120
WIRE 760 -104 760 -120
WIRE 440 -88 440 -120
WIRE -440 -72 -456 -72
WIRE -552 -24 -584 -24
WIRE -440 -24 -472 -24
WIRE 184 -8 184 -24
WIRE 232 -8 232 -24
WIRE 440 -8 440 -24
WIRE 648 -8 648 -40
WIRE 760 -8 760 -24
WIRE -680 24 -712 24
WIRE -584 24 -584 -24
WIRE -584 24 -616 24
WIRE -440 24 -584 24
WIRE 40 24 -152 24
WIRE -136 72 -152 72
WIRE 40 72 40 24
WIRE 136 72 40 72
WIRE -536 120 -552 120
WIRE -440 120 -472 120
WIRE -104 120 -104 -280
WIRE -104 120 -152 120
WIRE 184 120 184 88
WIRE 184 120 120 120
WIRE 184 136 184 120
WIRE 616 152 616 -120
WIRE -744 168 -760 168
WIRE -648 168 -664 168
WIRE -440 168 -648 168
WIRE -136 168 -152 168
WIRE -648 216 -648 168
WIRE -632 216 -648 216
WIRE -520 216 -552 216
WIRE -440 216 -456 216
WIRE 120 216 120 120
WIRE 120 216 -152 216
WIRE 184 232 184 216
WIRE -648 280 -648 216
WIRE 616 280 616 232
WIRE 616 280 -648 280
FLAG -136 72 0
FLAG 184 232 0
FLAG -456 -72 0
FLAG -456 -168 0
FLAG -552 120 0
FLAG -712 24 0
FLAG -568 -168 0
FLAG 648 -8 0
FLAG -760 168 0
FLAG 760 -8 0
FLAG 232 -8 0
FLAG 440 -8 0
FLAG 760 -120 OUT
FLAG -456 -120 0
FLAG -568 -280 IN
SYMBOL nmos 136 -248 R0
SYMATTR InstName Q1
SYMATTR Value IRF7303
SYMBOL nmos 136 -8 R0
SYMATTR InstName Q2
SYMATTR Value IRF7303
SYMBOL voltage -568 -280 R0
SYMATTR InstName V1
SYMATTR Value 16
SYMBOL res 168 120 R0
SYMATTR InstName R1
SYMATTR Value 25m
SYMBOL cap -472 104 R90
SYMATTR InstName C1
SYMATTR Value .001
SYMBOL cap -456 200 R90
SYMATTR InstName C2
SYMATTR Value .001
SYMBOL res -536 200 R90
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res -648 152 R90
SYMATTR InstName R3
SYMATTR Value 1K
SYMBOL res 600 248 M180
SYMATTR InstName R4
SYMATTR Value 1K
SYMBOL cap -616 8 R90
SYMATTR InstName C3
SYMATTR Value 150p
SYMBOL res -456 -40 R90
SYMATTR InstName R5
SYMATTR Value 52.3K
SYMBOL ind2 168 -120 R0
SYMATTR InstName L1
SYMATTR Value 300
SYMATTR Type ind
SYMBOL ind2 248 -120 M0
SYMATTR InstName L2
SYMATTR Value 300
SYMATTR Type ind
SYMBOL schottky 424 -24 M180
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 488 -104 R270
SYMATTR InstName L3
SYMATTR Value 10
SYMBOL cap 632 -104 R0
SYMATTR InstName C4
SYMATTR Value 100
SYMATTR SpiceLine Rser=50m
SYMBOL cap 56 -232 R90
SYMATTR InstName C5
SYMATTR Value .5
SYMBOL diode -24 -280 M0
SYMATTR InstName D2
SYMATTR Value 1N5817
SYMBOL schottky 328 -104 R270
SYMATTR InstName D3
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL PowerProducts\\LT3781 -296 -8 R0
SYMATTR InstName U1
SYMBOL res 744 -8 M180
SYMATTR InstName Rload
SYMATTR Value 5