* SPICE netlist
L1 N003 OUT1 4.7
C1 N003 N002 0.22
D1 N005 N003 MBRS340
R1 OUT1 N006 34K
R2 N006 0 10K
C2 N015 0 1n
R3 OUT1 N010 0.1
C3 OUT1 0 47
Q1 N010 N012 OUT3 0 2N2219A
R4 OUT3 N014 15.4K
R5 N014 0 11K
C4 OUT3 0 2.2
R6 OUT1 N009 0.1
Q2 N009 N011 OUT2 0 2N2219A
R7 OUT2 N013 24.9K
R8 N013 0 10.7K
C5 OUT2 0 2.2
R9 N004 0 51.1K
R10 N008 N007 41.2K
C6 N007 0 330p
V1 IN 0 20
Rload3 OUT3 0 8
Rload2 OUT2 0 12
Rload1 OUT1 0 4
R11 N001 OUT1 100K
XU1 IN IN NC_01 N001 N004 N015 N015 N013 N011 N009 N010 N012 N014 N015 N006 N008 OUT1 N002 N005 N003 0 LT3694-1 ;pnba Vin)EN/UVLO)CLKOUT)Pgood)Rt)TRK/SS1)TRK/SS2)FB2)Drv2)Lim2)Lim3)Drv3)FB3)TRK/SS3)FB1)Vc1)Bias)Boost)DA)SW)GND
.tran 250u startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1296 928
WIRE -264 -464 -600 -464
WIRE -24 -464 -264 -464
WIRE -600 -448 -600 -464
WIRE 520 -448 -504 -448
WIRE -24 -432 -24 -464
WIRE -264 -400 -264 -464
WIRE -248 -400 -264 -400
WIRE 440 -400 216 -400
WIRE -600 -352 -600 -368
WIRE -504 -304 -504 -448
WIRE -392 -304 -504 -304
WIRE -248 -304 -312 -304
WIRE 248 -304 216 -304
WIRE 248 -288 248 -304
WIRE 248 -208 248 -224
WIRE 248 -208 216 -208
WIRE 328 -208 248 -208
WIRE 440 -208 440 -400
WIRE 440 -208 408 -208
WIRE 520 -208 520 -448
WIRE 520 -208 440 -208
WIRE 568 -208 520 -208
WIRE 648 -208 568 -208
WIRE 248 -192 248 -208
WIRE 440 -192 440 -208
WIRE 568 -192 568 -208
WIRE 648 -192 648 -208
WIRE -344 -112 -360 -112
WIRE -248 -112 -264 -112
WIRE 248 -112 248 -128
WIRE 248 -112 216 -112
WIRE 440 -96 440 -112
WIRE 440 -96 392 -96
WIRE 568 -96 568 -128
WIRE 648 -96 648 -112
WIRE 440 -80 440 -96
WIRE -424 -16 -440 -16
WIRE -344 -16 -360 -16
WIRE -248 -16 -264 -16
WIRE 392 -16 392 -96
WIRE 392 -16 216 -16
WIRE 440 16 440 0
WIRE -504 80 -504 -304
WIRE -472 80 -504 80
WIRE -376 80 -392 80
WIRE -248 80 -376 80
WIRE 312 80 216 80
WIRE 344 80 312 80
WIRE 520 80 520 -208
WIRE 520 80 424 80
WIRE -376 128 -376 80
WIRE 312 128 312 80
WIRE -248 176 -312 176
WIRE 248 176 216 176
WIRE -504 240 -632 240
WIRE -376 240 -376 224
WIRE -376 240 -504 240
WIRE 312 240 312 224
WIRE 424 240 312 240
WIRE 520 240 424 240
WIRE -632 256 -632 240
WIRE -504 256 -504 240
WIRE -376 256 -376 240
WIRE 312 256 312 240
WIRE 424 256 424 240
WIRE 520 256 520 240
WIRE -248 272 -280 272
WIRE 264 272 216 272
WIRE -632 352 -632 336
WIRE -504 352 -504 320
WIRE -376 352 -376 336
WIRE -280 352 -280 272
WIRE -280 352 -376 352
WIRE 264 352 264 272
WIRE 312 352 312 336
WIRE 312 352 264 352
WIRE 424 352 424 320
WIRE 520 352 520 336
WIRE -376 368 -376 352
WIRE -184 368 -184 352
WIRE -72 368 -72 352
WIRE -72 368 -184 368
WIRE 40 368 40 352
WIRE 40 368 -72 368
WIRE 152 368 152 352
WIRE 312 368 312 352
WIRE -72 384 -72 368
WIRE -376 464 -376 448
WIRE -72 464 -72 448
WIRE 312 464 312 448
FLAG 152 368 0
FLAG 440 16 0
FLAG -72 464 0
FLAG 568 -96 0
FLAG 312 464 0
FLAG 424 352 0
FLAG 520 352 0
FLAG 648 -96 0
FLAG -376 464 0
FLAG -504 352 0
FLAG -632 352 0
FLAG -360 -112 0
FLAG -440 -16 0
FLAG -600 -352 0
FLAG -600 -464 IN
FLAG -632 240 OUT2
FLAG 520 240 OUT3
FLAG 648 -208 OUT1
SYMBOL ind 312 -192 R270
SYMATTR InstName L1
SYMATTR Value 4.7
SYMBOL cap 232 -224 M180
SYMATTR InstName C1
SYMATTR Value 0.22
SYMBOL schottky 232 -128 M180
SYMATTR InstName D1
SYMATTR Value MBRS340
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 424 -208 R0
SYMATTR InstName R1
SYMATTR Value 34K
SYMBOL res 424 -96 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap -88 384 R0
SYMATTR Value 1n
SYMATTR InstName C2
SYMBOL res 440 64 R90
SYMATTR InstName R3
SYMATTR Value 0.1
SYMBOL cap 552 -192 R0
SYMATTR InstName C3
SYMATTR Value 47
SYMBOL npn 248 128 R0
SYMATTR InstName Q1
SYMATTR Value 2N2219A
SYMBOL res 296 240 R0
SYMATTR InstName R4
SYMATTR Value 15.4K
SYMBOL res 296 352 R0
SYMATTR InstName R5
SYMATTR Value 11K
SYMBOL cap 408 256 R0
SYMATTR InstName C4
SYMATTR Value 2.2
SYMBOL res -488 64 M90
SYMATTR InstName R6
SYMATTR Value 0.1
SYMBOL npn -312 128 M0
SYMATTR InstName Q2
SYMATTR Value 2N2219A
SYMBOL res -392 240 R0
SYMATTR Value 24.9K
SYMATTR InstName R7
SYMBOL res -392 352 R0
SYMATTR InstName R8
SYMATTR Value 10.7K
SYMBOL cap -520 256 R0
SYMATTR InstName C5
SYMATTR Value 2.2
SYMBOL res -248 -128 R90
SYMATTR InstName R9
SYMATTR Value 51.1K
SYMBOL res -248 -32 R90
SYMATTR InstName R10
SYMATTR Value 41.2K
SYMBOL cap -360 -32 R90
SYMATTR InstName C6
SYMATTR Value 330p
SYMBOL voltage -600 -464 R0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL res 504 240 R0
SYMATTR InstName Rload3
SYMATTR Value 8
SYMBOL res -648 240 R0
SYMATTR InstName Rload2
SYMATTR Value 12
SYMBOL res 632 -208 R0
SYMATTR InstName Rload1
SYMATTR Value 4
SYMBOL res -296 -320 R90
SYMATTR InstName R11
SYMATTR Value 100K
SYMBOL LT3694-1 -24 -16 R0
SYMATTR InstName U1