* SPICE netlist
L1 IN N003 22 Rpar=10K
L2 IN N002 22 Rpar=2K
R1 OUT1 N004 2Meg
R2 N004 0 178K
D1 N002 OUT1 1N5819
R3 OUT2 N005 1Meg
R4 N005 0 324K
D2 N003 OUT2 MBRS360
C1 OUT2 0 4.7
C2 OUT1 0 1
V1 IN 0 3.5
XU1 N004 IN 0 IN N005 N003 0 IN 0 N002 LT1944-1 ;pnba FB1)_SHDN1)GND)_SHDN2)FB2)SW2)PGND2)Vin)PGND1)SW1
C3 OUT3 0 1
D3 OUT3 N001 1N5819
D4 N001 OUT2 1N5819
C4 N001 N002 .1
Rload2 OUT2 0 125
Rload1 OUT1 0 6K
Rload3 OUT3 0 10K
.tran 4m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1424 560
WIRE -552 -264 -696 -264
WIRE -456 -264 -552 -264
WIRE -296 -264 -392 -264
WIRE -232 -264 -296 -264
WIRE 504 -264 -168 -264
WIRE -696 -248 -696 -264
WIRE -552 -248 -552 -264
WIRE -296 -216 -296 -264
WIRE 120 -216 24 -216
WIRE 120 -200 120 -216
WIRE -696 -152 -696 -168
WIRE -552 -152 -552 -184
WIRE 120 -104 120 -120
WIRE -552 -72 -680 -72
WIRE -456 -72 -552 -72
WIRE -408 -72 -456 -72
WIRE -296 -72 -296 -152
WIRE -296 -72 -344 -72
WIRE -280 -72 -296 -72
WIRE -184 -72 -200 -72
WIRE 24 -72 24 -216
WIRE 24 -72 -184 -72
WIRE 232 -72 24 -72
WIRE 248 -72 232 -72
WIRE 344 -72 328 -72
WIRE 392 -72 344 -72
WIRE 504 -72 504 -264
WIRE 504 -72 456 -72
WIRE 616 -72 504 -72
WIRE 712 -72 616 -72
WIRE -680 -56 -680 -72
WIRE -552 -56 -552 -72
WIRE 616 -56 616 -72
WIRE 712 -56 712 -72
WIRE 24 -24 24 -72
WIRE -456 8 -456 -72
WIRE 504 8 504 -72
WIRE -680 40 -680 24
WIRE -552 40 -552 8
WIRE -184 40 -184 -72
WIRE -152 40 -184 40
WIRE 232 40 232 -72
WIRE 232 40 200 40
WIRE 616 40 616 8
WIRE 712 40 712 24
WIRE -296 104 -296 -72
WIRE -152 104 -296 104
WIRE 344 104 344 -72
WIRE 344 104 200 104
WIRE -456 168 -456 88
WIRE -152 168 -456 168
WIRE 504 168 504 88
WIRE 504 168 200 168
WIRE -456 184 -456 168
WIRE 504 184 504 168
WIRE -88 248 -88 232
WIRE 24 248 24 232
WIRE 136 248 136 232
WIRE -456 280 -456 264
WIRE 504 280 504 264
FLAG -456 280 0
FLAG -88 248 0
FLAG 24 248 0
FLAG 136 248 0
FLAG 504 280 0
FLAG -552 40 0
FLAG 616 40 0
FLAG 712 40 0
FLAG -680 40 0
FLAG 120 -104 0
FLAG -552 -152 0
FLAG -696 -152 0
FLAG -680 -72 OUT1
FLAG 712 -72 OUT2
FLAG 120 -216 IN
FLAG -696 -264 OUT3
SYMBOL ind 232 -56 R270
SYMATTR InstName L1
SYMATTR Value 22
SYMATTR SpiceLine Rpar=10K
SYMBOL ind -184 -56 M270
SYMATTR InstName L2
SYMATTR Value 22
SYMATTR SpiceLine Rpar=2K
SYMBOL RES -472 -8 R0
SYMATTR InstName R1
SYMATTR Value 2Meg
SYMBOL res -472 168 R0
SYMATTR InstName R2
SYMATTR Value 178K
SYMBOL schottky -344 -88 R90
SYMATTR InstName D1
SYMATTR Value 1N5819
SYMBOL res 488 -8 R0
SYMATTR InstName R3
SYMATTR Value 1Meg
SYMBOL res 488 168 R0
SYMATTR InstName R4
SYMATTR Value 324K
SYMBOL schottky 392 -88 M90
SYMATTR InstName D2
SYMATTR Value MBRS360
SYMBOL cap 600 -56 R0
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL cap -568 -56 R0
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL VOLTAGE 120 -216 R0
SYMATTR InstName V1
SYMATTR Value 3.5
SYMBOL POWERPRODUCTS\\LT1944-1 24 104 R0
SYMATTR InstName U1
SYMBOL cap -568 -248 R0
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL schottky -456 -280 M90
SYMATTR InstName D3
SYMATTR Value 1N5819
SYMBOL schottky -232 -280 M90
SYMATTR InstName D4
SYMATTR Value 1N5819
SYMBOL cap -312 -216 R0
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL res 696 -72 R0
SYMATTR InstName Rload2
SYMATTR Value 125
SYMBOL res -696 -72 R0
SYMATTR InstName Rload1
SYMATTR Value 6K
SYMBOL res -712 -264 R0
SYMATTR InstName Rload3
SYMATTR Value 10K