* SPICE netlist
MQ1 N002 N005 N007 N007 Si7852DP
L1 IN N002 20 Rser=10m Rpar=1K
D1 N002 OUT MBRS360
MQ2 N001 N004 N006 N006 Si7852DP
D2 N001 OUT MBRS360
R1 N010 0 80K
R2 N013 0 100K
R3 OUT N009 475K
R4 N009 0 24.9K
L2 IN N001 20 Rser=10m Rpar=1K
C1 0 N012 .004
C2 N011 0 6800p Rser=13K Cpar=100p
R5 IN N008 825K
R6 N008 0 274K
V1 IN 0 15
C3 OUT 0 240 Rser=10m
R7 N006 0 4m
R8 N007 0 4m
C4 0 N003 1
XU1 MP_01 MP_02 MP_03 0 N014 MP_04 N010 N006 0 N013 N010 0 N007 N012 N011 N009 N008 MP_05 0 N005 N003 N003 N004 0 MP_06 MP_07 IN N003 LT3782 ;pnba )))GND)SYNC))DCL)Sense1+)Sense1-)Slope)Rset)Sense2-)Sense2+)SS)Vc)FB)Run))Vee2)Bgate2)Gbias2)Gbias1)Bgate1)Vee1)))Vcc)Gbias
Rload OUT 0 12.5
.tran 3m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1120 960
WIRE -464 -480 -560 -480
WIRE -304 -480 -464 -480
WIRE -160 -480 -304 -480
WIRE 256 -480 -160 -480
WIRE -560 -464 -560 -480
WIRE -304 -464 -304 -480
WIRE 256 -464 256 -480
WIRE -560 -368 -560 -384
WIRE -304 -368 -304 -384
WIRE 144 -368 -304 -368
WIRE 416 -368 208 -368
WIRE 464 -368 416 -368
WIRE 560 -368 464 -368
WIRE 560 -352 560 -368
WIRE 464 -336 464 -368
WIRE 256 -320 256 -384
WIRE 304 -320 256 -320
WIRE 416 -320 416 -368
WIRE 416 -320 368 -320
WIRE -304 -272 -304 -368
WIRE 32 -272 -64 -272
WIRE 128 -272 32 -272
WIRE 256 -272 256 -320
WIRE -160 -256 -160 -480
WIRE -64 -256 -64 -272
WIRE 32 -256 32 -272
WIRE 128 -256 128 -272
WIRE 464 -256 464 -272
WIRE 560 -256 560 -272
WIRE -224 -192 -256 -192
WIRE 208 -192 192 -192
WIRE -304 -128 -304 -176
WIRE -224 -128 -304 -128
WIRE 256 -128 256 -176
WIRE 256 -128 192 -128
WIRE -304 -112 -304 -128
WIRE 256 -112 256 -128
WIRE 416 -112 416 -320
WIRE -464 -64 -464 -480
WIRE -304 -16 -304 -32
WIRE -224 -16 -304 -16
WIRE 256 -16 256 -32
WIRE 256 -16 192 -16
WIRE -304 48 -304 -16
WIRE -224 48 -304 48
WIRE 256 48 256 -16
WIRE 256 48 192 48
WIRE -304 64 -304 48
WIRE 256 64 256 48
WIRE -464 112 -464 16
WIRE -224 112 -464 112
WIRE 416 112 416 -32
WIRE 416 112 192 112
WIRE -464 128 -464 112
WIRE 416 128 416 112
WIRE -336 208 -352 208
WIRE -240 208 -256 208
WIRE -224 208 -240 208
WIRE 288 208 192 208
WIRE 368 208 352 208
WIRE -464 224 -464 208
WIRE 416 224 416 208
WIRE -240 304 -240 208
WIRE -224 304 -240 304
WIRE 208 304 192 304
WIRE 288 304 272 304
WIRE -336 400 -352 400
WIRE -224 400 -256 400
WIRE 208 400 192 400
WIRE -16 480 -16 464
FLAG -16 480 0
FLAG -352 208 0
FLAG -352 400 0
FLAG 416 224 0
FLAG 288 304 0
FLAG 368 208 0
FLAG -464 224 0
FLAG -560 -368 0
FLAG 464 -256 0
FLAG 560 -256 0
FLAG -304 64 0
FLAG 256 64 0
FLAG 32 -336 0
FLAG 560 -368 OUT
FLAG -560 -480 IN
SYMBOL nmos 208 -272 R0
SYMATTR InstName Q1
SYMATTR Value Si7852DP
SYMBOL ind 240 -480 R0
SYMATTR InstName L1
SYMATTR Value 20
SYMATTR SpiceLine Rser=10m Rpar=1K
SYMBOL schottky 304 -304 R270
SYMATTR InstName D1
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL nmos -256 -272 M0
SYMATTR InstName Q2
SYMATTR Value Si7852DP
SYMBOL schottky 144 -384 M90
SYMATTR InstName D2
SYMATTR Value MBRS360
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -240 192 R90
SYMATTR InstName R1
SYMATTR Value 80K
SYMBOL res -240 384 R90
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL res 400 -128 R0
SYMATTR InstName R3
SYMATTR Value 475K
SYMBOL res 400 112 R0
SYMATTR InstName R4
SYMATTR Value 24.9K
SYMBOL ind -320 -480 R0
SYMATTR InstName L2
SYMATTR Value 20
SYMATTR SpiceLine Rser=10m Rpar=1K
SYMBOL cap 272 288 R90
SYMATTR InstName C1
SYMATTR Value .004
SYMBOL cap 288 224 R270
SYMATTR InstName C2
SYMATTR Value 6800p
SYMATTR SpiceLine Rser=13K Cpar=100p
SYMBOL res -480 -80 R0
SYMATTR InstName R5
SYMATTR Value 825K
SYMBOL res -480 112 R0
SYMATTR InstName R6
SYMATTR Value 274K
SYMBOL voltage -560 -480 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL cap 448 -336 R0
SYMATTR InstName C3
SYMATTR Value 240
SYMATTR SpiceLine Rser=10m
SYMBOL res -320 -128 R0
SYMATTR InstName R7
SYMATTR Value 4m
SYMBOL res 240 -128 R0
SYMATTR InstName R8
SYMATTR Value 4m
SYMBOL cap 16 -336 R0
SYMATTR InstName C4
SYMATTR Value 1
SYMBOL PowerProducts\\LT3782A -16 0 R0
SYMATTR InstName U1
SYMBOL res 544 -368 R0
SYMATTR InstName Rload
SYMATTR Value 12.5