* SPICE netlist
L1 N006 OUT 2.8
V1 IN 0 5
C1 OUT 0 330 x6 Rser=.1
MQ1 N006 N008 0 0 IRF7201 m=2
C2 N014 0 220p
C3 N013 0 4700p
R1 N014 N013 7.5K
R2 IN N002 16K
MQ2 IN N003 N006 N006 IRF7201 m=2
R3 OUT N012 20K
R4 N012 0 12.5K
R5 N006 N005 1K
D1 IN N001 MBR0530L
C4 N001 N006 .22
C5 N007 0 .01
C6 IN N002 .1
R6 IN N004 100
C7 N004 0 4.7
XU1 N003 N001 0 0 N015 N012 N010 N011 N007 N014 N009 N002 N005 N004 IN N008 LTC1430A ;pnba G1)PVcc1)PGND)SGND)Sense-)FB)Sense+)_SHDN)SS)Comp)Freq)Imax)Ifb)Vcc)PVcc2)G2
Rload OUT 0 1
.tran 4m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1392 608
WIRE -584 -304 -696 -304
WIRE -488 -304 -584 -304
WIRE -392 -304 -488 -304
WIRE -232 -304 -392 -304
WIRE -104 -304 -232 -304
WIRE 280 -304 -104 -304
WIRE -696 -288 -696 -304
WIRE -104 -288 -104 -304
WIRE -488 -272 -488 -304
WIRE -392 -272 -392 -304
WIRE -584 -240 -584 -304
WIRE -104 -208 -104 -224
WIRE 152 -208 -104 -208
WIRE -696 -192 -696 -208
WIRE 152 -192 152 -208
WIRE 280 -192 280 -304
WIRE -232 -176 -232 -304
WIRE -104 -176 -104 -208
WIRE -488 -112 -488 -208
WIRE -392 -112 -392 -192
WIRE -392 -112 -488 -112
WIRE -360 -112 -392 -112
WIRE 232 -112 24 -112
WIRE -584 -48 -584 -160
WIRE -360 -48 -584 -48
WIRE 56 -48 24 -48
WIRE 152 -48 152 -128
WIRE 152 -48 136 -48
WIRE 280 -48 280 -96
WIRE 280 -48 152 -48
WIRE 344 -48 280 -48
WIRE 456 -48 424 -48
WIRE 568 -48 456 -48
WIRE 696 -48 568 -48
WIRE -584 -32 -584 -48
WIRE 280 -32 280 -48
WIRE 568 -32 568 -48
WIRE 696 -32 696 -48
WIRE 456 -16 456 -48
WIRE -360 16 -376 16
WIRE 200 16 24 16
WIRE -584 48 -584 32
WIRE 200 48 200 16
WIRE 232 48 200 48
WIRE 568 64 568 32
WIRE 696 64 696 48
WIRE -360 80 -376 80
WIRE 40 80 24 80
WIRE 280 96 280 64
WIRE -360 144 -376 144
WIRE 456 144 456 64
WIRE 456 144 24 144
WIRE 456 160 456 144
WIRE -552 208 -616 208
WIRE -424 208 -472 208
WIRE -360 208 -424 208
WIRE 40 208 24 208
WIRE -616 224 -616 208
WIRE -424 224 -424 208
WIRE 456 256 456 240
WIRE -616 304 -616 288
WIRE -424 304 -424 288
WIRE -232 304 -232 272
WIRE -104 304 -104 272
FLAG -232 304 0
FLAG 568 64 0
FLAG -696 -192 0
FLAG 696 64 0
FLAG 696 -48 OUT
FLAG 280 96 0
FLAG -616 304 0
FLAG -424 304 0
FLAG 456 256 0
FLAG -104 304 0
FLAG -440 16 0
FLAG -584 48 0
FLAG -696 -304 IN
SYMBOL ind 328 -32 R270
SYMATTR InstName L1
SYMATTR Value 2.8
SYMBOL VOLTAGE -696 -304 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL polcap 552 -32 R0
SYMATTR Value2 x6
SYMATTR Value 330
SYMATTR SpiceLine Rser=.1
SYMATTR InstName C1
SYMBOL NMOS 232 -32 R0
SYMATTR InstName Q1
SYMATTR Value IRF7201
SYMATTR Value2 m=2
SYMBOL cap -440 224 R0
SYMATTR InstName C2
SYMATTR Value 220p
SYMBOL cap -632 224 R0
SYMATTR InstName C3
SYMATTR Value 4700p
SYMBOL res -456 192 R90
SYMATTR InstName R1
SYMATTR Value 7.5K
SYMBOL res -408 -288 R0
SYMATTR InstName R2
SYMATTR Value 16K
SYMBOL NMOS 232 -192 R0
SYMATTR InstName Q2
SYMATTR Value IRF7201
SYMATTR Value2 m=2
SYMBOL res 440 -32 R0
SYMATTR InstName R3
SYMATTR Value 20K
SYMBOL res 440 144 R0
SYMATTR InstName R4
SYMATTR Value 12.5K
SYMBOL res 152 -64 R90
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL schottky -120 -288 R0
SYMATTR InstName D1
SYMATTR Value MBR0530L
SYMBOL cap 136 -192 R0
SYMATTR InstName C4
SYMATTR Value .22
SYMBOL cap -376 0 R90
SYMATTR InstName C5
SYMATTR Value .01
SYMBOL cap -504 -272 R0
SYMATTR InstName C6
SYMATTR Value .1
SYMBOL res -600 -256 R0
SYMATTR InstName R6
SYMATTR Value 100
SYMBOL polcap -600 -32 R0
SYMATTR InstName C7
SYMATTR Value 4.7
SYMBOL POWERPRODUCTS\\LTC1430A -168 48 R0
SYMATTR InstName U1
SYMBOL res 680 -48 R0
SYMATTR InstName Rload
SYMATTR Value 1