* SPICE netlist
MQ1 N001 N005 N006 N006 Si7370DP
L1 IN N001 19.4 Rser=5m Rpar=5K
D1 N001 OUT PDS760
R1 N009 0 66.5K
R2 OUT N011 475K
R3 N011 0 12.4K
R4 IN N004 84.5K
R5 N004 0 24.9K
V1 IN 0 10
C1 OUT 0 100 Rser=10m
R6 N006 0 6m
C2 0 N002 4.7
C3 0 N013 2.2n
C4 0 N003 1n
C5 0 N014 4.7n
L2 IN N007 19.4 Rser=5m Rpar=5K
R7 N010 0 6m
MQ2 N007 N008 N010 N010 Si7370DP
D2 N007 OUT PDS760
Rload OUT 0 20
XU1 0 NC_01 NC_02 0 N009 N013 N012 N011 0 NC_03 NC_04 0 N010 0 N003 N008 0 N005 N002 IN N004 0 N006 LTC3862-1 ;pnba Dmax)Slope)Blank)PhaseMode)Freq)SS)Ith)FB)SGND)CLKOut)SYNC)PLLFLTR)Sense2+)Sense2-)3V8)Gate2)PGND)Gate1)INTVcc)Vin)Run)Sense1-)Sense1+
R8 N012 N014 38.3K
C6 N012 0 100p
.tran 1.8m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1280 1104
WIRE -512 -552 -640 -552
WIRE -304 -552 -512 -552
WIRE 176 -552 -304 -552
WIRE 304 -552 176 -552
WIRE -640 -536 -640 -552
WIRE 176 -536 176 -552
WIRE -640 -440 -640 -456
WIRE -512 -440 -512 -552
WIRE 176 -440 176 -456
WIRE 352 -440 176 -440
WIRE 496 -440 416 -440
WIRE 544 -440 496 -440
WIRE 640 -440 544 -440
WIRE 176 -424 176 -440
WIRE 640 -424 640 -440
WIRE -304 -408 -304 -552
WIRE -160 -408 -160 -424
WIRE -16 -408 -16 -424
WIRE 544 -408 544 -440
WIRE -512 -344 -512 -360
WIRE -384 -344 -512 -344
WIRE 128 -344 64 -344
WIRE -512 -328 -512 -344
WIRE 544 -312 544 -344
WIRE 640 -312 640 -344
WIRE 304 -296 304 -552
WIRE 176 -248 176 -328
WIRE 176 -248 64 -248
WIRE -512 -232 -512 -248
WIRE 176 -232 176 -248
WIRE -384 -152 -400 -152
WIRE 80 -152 64 -152
WIRE 176 -136 176 -152
WIRE 304 -136 304 -216
WIRE 384 -136 304 -136
WIRE 496 -136 496 -440
WIRE 496 -136 448 -136
WIRE 256 -56 64 -56
WIRE -480 40 -496 40
WIRE -384 40 -400 40
WIRE 304 40 304 -40
WIRE 304 40 64 40
WIRE 304 56 304 40
WIRE -384 136 -400 136
WIRE 80 136 64 136
WIRE 496 136 496 -136
WIRE 304 152 304 136
WIRE 496 232 496 216
WIRE 496 232 64 232
WIRE 496 248 496 232
WIRE 208 328 64 328
WIRE 320 328 208 328
WIRE 496 344 496 328
WIRE 208 360 208 328
WIRE -384 424 -400 424
WIRE 112 424 64 424
WIRE 320 424 320 328
WIRE 112 472 112 424
WIRE 208 472 208 440
WIRE -304 504 -304 488
WIRE -16 504 -16 488
WIRE 112 552 112 536
WIRE 208 552 208 536
WIRE 320 552 320 488
FLAG -304 504 0
FLAG -496 40 0
FLAG 496 344 0
FLAG -512 -232 0
FLAG -640 -440 0
FLAG 544 -312 0
FLAG 640 -312 0
FLAG 176 -136 0
FLAG -160 -488 0
FLAG 640 -440 OUT
FLAG -16 504 0
FLAG 112 552 0
FLAG -400 -152 0
FLAG -400 136 0
FLAG -400 424 0
FLAG -16 -488 0
FLAG 208 552 0
FLAG 80 -152 0
FLAG 80 136 0
FLAG 304 152 0
FLAG -640 -552 IN
FLAG 320 552 0
SYMBOL nmos 128 -424 R0
SYMATTR Value Si7370DP
SYMATTR InstName Q1
SYMBOL ind 160 -552 R0
SYMATTR InstName L1
SYMATTR Value 19.4
SYMATTR SpiceLine Rser=5m Rpar=5K
SYMBOL schottky 352 -424 R270
SYMATTR InstName D1
SYMATTR Value PDS760
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -384 24 R90
SYMATTR InstName R1
SYMATTR Value 66.5K
SYMBOL res 480 120 R0
SYMATTR InstName R2
SYMATTR Value 475K
SYMBOL res 480 232 R0
SYMATTR InstName R3
SYMATTR Value 12.4K
SYMBOL res -528 -456 R0
SYMATTR InstName R4
SYMATTR Value 84.5K
SYMBOL res -528 -344 R0
SYMATTR InstName R5
SYMATTR Value 24.9K
SYMBOL voltage -640 -552 R0
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL cap 528 -408 R0
SYMATTR InstName C1
SYMATTR Value 100
SYMATTR SpiceLine Rser=10m
SYMBOL res 160 -248 R0
SYMATTR InstName R6
SYMATTR Value 6m
SYMBOL cap -176 -488 R0
SYMATTR InstName C2
SYMATTR Value 4.7
SYMBOL cap 96 536 M180
SYMATTR InstName C3
SYMATTR Value 2.2n
SYMBOL cap -32 -488 R0
SYMATTR InstName C4
SYMATTR Value 1n
SYMBOL cap 192 536 M180
SYMATTR InstName C5
SYMATTR Value 4.7n
SYMBOL ind 288 -312 R0
SYMATTR InstName L2
SYMATTR Value 19.4
SYMATTR SpiceLine Rser=5m Rpar=5K
SYMBOL res 288 40 R0
SYMATTR InstName R7
SYMATTR Value 6m
SYMBOL nmos 256 -136 R0
SYMATTR Value Si7370DP
SYMATTR InstName Q2
SYMBOL schottky 384 -120 R270
SYMATTR InstName D2
SYMATTR Value PDS760
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 624 -440 R0
SYMATTR InstName Rload
SYMATTR Value 20
SYMBOL PowerProducts\\LTC3862-1 -160 -8 R0
SYMATTR InstName U1
SYMBOL res 192 344 R0
SYMATTR InstName R8
SYMATTR Value 38.3K
SYMBOL cap 304 424 R0
SYMATTR InstName C6
SYMATTR Value 100p