* SPICE netlist
V1 IN 0 5
L1 IN N004 6.8
D1 N004 OUT1 1N5817
R1 OUT1 N006 143K
R2 N006 0 10K
C1 OUT1 0 10
C2 N008 0 .002
C3 N010 0 .001 Rser=22K
R3 N012 0 15.8K
D2 OUT2 N001 CMDSH2-3
D3 0 N002 B520C
L2 N002 OUT2 3.3
C4 N001 N002 .1
R4 OUT2 N003 32.4K
R5 N003 0 10.2K
C5 N005 0 .002
C6 N007 0 .001 Rser=22K
C7 OUT2 0 22
Q1 OUT2 N009 OUT3 0 2N3391A
R6 OUT3 N011 22.1K
R7 N011 0 10.2K
C8 OUT3 0 2.2
XU1 IN MP_01 N002 N004 0 MP_02 IN N008 N010 N006 IN IN IN MP_03 N012 MP_04 N005 N007 N003 N011 N009 IN MP_05 N001 LT3570 ;pnba Vin2))SW2)SW1)GND))Vin1)SS1)Vc1)FB1)_SHDN1)_SHDN2)_SHDN3))Rt))SS2)Vc2)FB2)FB3)NPN_Drv)Vin3))Boost
Rload1 OUT1 0 42
Rload2 OUT2 0 3.3
Rload3 OUT3 0 25
.tran 750u startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1344 864
WIRE -272 -432 -336 -432
WIRE -208 -432 -272 -432
WIRE -112 -432 -208 -432
WIRE -32 -432 -112 -432
WIRE 48 -432 -32 -432
WIRE -336 -416 -336 -432
WIRE -112 -400 -112 -432
WIRE -32 -400 -32 -432
WIRE 48 -400 48 -432
WIRE -208 -336 -208 -432
WIRE -192 -336 -208 -336
WIRE 192 -336 128 -336
WIRE 240 -336 192 -336
WIRE 368 -336 304 -336
WIRE -336 -320 -336 -336
WIRE 192 -320 192 -336
WIRE -208 -240 -208 -336
WIRE -192 -240 -208 -240
WIRE 192 -240 192 -256
WIRE 192 -240 128 -240
WIRE 240 -240 192 -240
WIRE 368 -240 368 -336
WIRE 368 -240 320 -240
WIRE 464 -240 368 -240
WIRE 496 -240 464 -240
WIRE 576 -240 496 -240
WIRE 192 -224 192 -240
WIRE 496 -224 496 -240
WIRE 576 -224 576 -240
WIRE 368 -208 368 -240
WIRE -272 -144 -272 -432
WIRE -208 -144 -208 -240
WIRE -192 -144 -208 -144
WIRE 160 -144 128 -144
WIRE 192 -144 192 -160
WIRE 496 -128 496 -160
WIRE 576 -128 576 -144
WIRE 160 -112 160 -144
WIRE 368 -112 368 -128
WIRE 368 -112 160 -112
WIRE 368 -96 368 -112
WIRE -528 -48 -656 -48
WIRE -448 -48 -528 -48
WIRE -368 -48 -448 -48
WIRE -272 -48 -272 -64
WIRE -272 -48 -304 -48
WIRE -192 -48 -272 -48
WIRE 160 -48 128 -48
WIRE 240 -48 224 -48
WIRE -656 -32 -656 -48
WIRE -528 -32 -528 -48
WIRE -448 -32 -448 -48
WIRE 368 0 368 -16
WIRE -192 48 -256 48
WIRE 160 48 128 48
WIRE 240 48 224 48
WIRE -656 64 -656 48
WIRE -528 64 -528 32
WIRE -448 64 -448 48
WIRE -256 64 -256 48
WIRE -256 64 -448 64
WIRE -448 80 -448 64
WIRE 464 96 464 -240
WIRE -288 144 -304 144
WIRE -192 144 -224 144
WIRE 400 144 128 144
WIRE -448 176 -448 160
WIRE 464 208 464 192
WIRE 576 208 464 208
WIRE 672 208 576 208
WIRE 464 224 464 208
WIRE 576 224 576 208
WIRE 672 224 672 208
WIRE -288 240 -304 240
WIRE -192 240 -224 240
WIRE 304 240 128 240
WIRE -80 320 -80 304
WIRE 16 320 16 304
WIRE 304 320 304 240
WIRE 464 320 464 304
WIRE 464 320 304 320
WIRE 576 320 576 288
WIRE 672 320 672 304
WIRE 464 336 464 320
WIRE -80 416 -80 400
WIRE 464 432 464 416
FLAG -336 -320 0
FLAG -448 176 0
FLAG -656 64 0
FLAG -528 64 0
FLAG -304 144 0
FLAG -304 240 0
FLAG 16 320 0
FLAG -80 416 0
FLAG -656 -48 OUT1
FLAG -336 -432 IN
FLAG 192 -144 0
FLAG 368 0 0
FLAG 240 -48 0
FLAG 240 48 0
FLAG 576 -128 0
FLAG 496 -128 0
FLAG 576 -240 OUT2
FLAG 464 432 0
FLAG 672 320 0
FLAG 576 320 0
FLAG 672 208 OUT3
SYMBOL voltage -336 -432 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL ind -288 -160 R0
SYMATTR InstName L1
SYMATTR Value 6.8
SYMBOL schottky -304 -64 R90
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -464 -48 R0
SYMATTR InstName R1
SYMATTR Value 143K
SYMBOL res -464 64 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap -544 -32 R0
SYMATTR InstName C1
SYMATTR Value 10
SYMBOL cap -224 128 R90
SYMATTR InstName C2
SYMATTR Value .002
SYMBOL cap -224 224 R90
SYMATTR InstName C3
SYMATTR Value .001
SYMATTR SpiceLine Rser=22K
SYMBOL res -96 304 R0
SYMATTR InstName R3
SYMATTR Value 15.8K
SYMBOL schottky 304 -352 R90
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 176 -160 M180
SYMATTR InstName D3
SYMATTR Value B520C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 224 -224 R270
SYMATTR InstName L2
SYMATTR Value 3.3
SYMBOL cap 176 -320 R0
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL res 352 -224 R0
SYMATTR InstName R4
SYMATTR Value 32.4K
SYMBOL res 352 -112 R0
SYMATTR InstName R5
SYMATTR Value 10.2K
SYMBOL cap 160 -64 M90
SYMATTR InstName C5
SYMATTR Value .002
SYMBOL cap 160 32 M90
SYMATTR InstName C6
SYMATTR Value .001
SYMATTR SpiceLine Rser=22K
SYMBOL cap 480 -224 R0
SYMATTR InstName C7
SYMATTR Value 22
SYMBOL npn 400 96 R0
SYMATTR InstName Q1
SYMATTR Value 2N3391A
SYMBOL res 448 208 R0
SYMATTR InstName R6
SYMATTR Value 22.1K
SYMBOL res 448 320 R0
SYMATTR InstName R7
SYMATTR Value 10.2K
SYMBOL cap 560 224 R0
SYMATTR InstName C8
SYMATTR Value 2.2
SYMBOL LT3570 -32 -48 R0
SYMATTR InstName U1
SYMBOL res -672 -48 R0
SYMATTR InstName Rload1
SYMATTR Value 42
SYMBOL res 560 -240 R0
SYMATTR InstName Rload2
SYMATTR Value 3.3
SYMBOL res 656 208 R0
SYMATTR InstName Rload3
SYMATTR Value 25