* SPICE netlist
L1 N005 0 1200 Rser=0.02 Rpar=5000
L2 IN N004 300 Rser=0.02 Rpar=5000
L3 0 N002 1200 Rser=0.02 Rpar=5000
L4 N001 IN 300 Rser=0.02 Rpar=5000
D1 N005 N003 1N5817
D2 N002 N003 1N5817
R1 OUT N015 7.50K
R2 N015 0 2.49K
R3 N013 0 16.9K
R4 N016 N017 6.8K
R5 0 N010 17K
R6 0 N012 17K
C1 N011 0 1000p
C2 0 N016 1500p
C3 N017 0 .015
V1 IN 0 3.3
L5 N003 OUT 100 Rpar=5000
C4 OUT 0 100
XU1 MP_01 N001 MP_02 MP_03 N011 N013 N015 N018 0 N016 N014 N012 N010 IN N004 N007 LT1533 ;pnba )COLB)))Ct)Rt)FB)NFB)GND)Vc)_SHDN)RCSL)RVSL)Vin)COLA)PGND
Rload 0 OUT 50
L6 N007 0 25n Rser=0.02 Rpar=5000
.tran 5m startup
K1 L1 L2 L3 L4 1.

* LTspice schematic (.asc)
Version 4
SHEET 1 1248 816
WIRE 32 -408 -480 -408
WIRE 224 -408 96 -408
WIRE 320 -408 288 -408
WIRE 352 -408 320 -408
WIRE 464 -408 432 -408
WIRE 528 -408 464 -408
WIRE 624 -408 528 -408
WIRE 32 -392 32 -408
WIRE 96 -392 96 -408
WIRE 528 -392 528 -408
WIRE 624 -392 624 -408
WIRE -112 -296 -608 -296
WIRE 32 -296 32 -312
WIRE 32 -296 -112 -296
WIRE 96 -296 96 -312
WIRE 160 -296 96 -296
WIRE 528 -296 528 -328
WIRE 624 -296 624 -312
WIRE -608 -280 -608 -296
WIRE 32 -280 32 -296
WIRE 96 -280 96 -296
WIRE -608 -184 -608 -200
WIRE 32 -184 32 -200
WIRE 32 -184 -64 -184
WIRE 96 -184 96 -200
WIRE 224 -184 96 -184
WIRE 320 -184 320 -408
WIRE 320 -184 288 -184
WIRE -432 -120 -448 -120
WIRE -32 -120 -144 -120
WIRE 80 -120 48 -120
WIRE 464 -72 464 -408
WIRE -480 -56 -480 -408
WIRE -432 -56 -480 -56
WIRE -64 -56 -64 -184
WIRE -64 -56 -144 -56
WIRE -432 8 -448 8
WIRE -112 8 -112 -296
WIRE -112 8 -144 8
WIRE -432 72 -448 72
WIRE -128 72 -144 72
WIRE 32 72 -48 72
WIRE -592 136 -624 136
WIRE -432 136 -528 136
WIRE -64 136 -144 136
WIRE 32 136 16 136
WIRE -528 200 -624 200
WIRE -432 200 -448 200
WIRE -96 200 -144 200
WIRE -608 264 -624 264
WIRE -464 264 -528 264
WIRE -432 264 -464 264
WIRE -48 264 -144 264
WIRE 0 264 -48 264
WIRE 128 264 80 264
WIRE -48 280 -48 264
WIRE 128 280 128 264
WIRE -432 328 -448 328
WIRE -112 328 -144 328
WIRE -48 360 -48 344
WIRE 128 360 128 344
WIRE -464 408 -464 264
WIRE 464 408 464 8
WIRE 464 408 -464 408
FLAG 624 -408 OUT
FLAG 160 -296 0
FLAG 528 -296 0
FLAG 624 -296 0
FLAG 80 -120 0
FLAG -608 -184 0
FLAG -608 -296 IN
FLAG -624 136 0
FLAG -624 200 0
FLAG -624 264 0
FLAG 32 72 0
FLAG 32 136 0
FLAG -48 360 0
FLAG -112 328 0
FLAG 128 360 0
SYMBOL IND2 112 -184 R180
SYMATTR InstName L1
SYMATTR Value 1200
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL IND2 16 -296 R0
SYMATTR InstName L2
SYMATTR Value 300
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL IND2 112 -296 R180
SYMATTR InstName L3
SYMATTR Value 1200
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL IND2 16 -408 R0
SYMATTR InstName L4
SYMATTR Value 300
SYMATTR SpiceLine Rser=0.02 Rpar=5000
SYMBOL schottky 224 -168 R270
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL schottky 224 -392 R270
SYMATTR InstName D2
SYMATTR Value 1N5817
SYMBOL RES 448 -88 R0
SYMATTR InstName R1
SYMATTR Value 7.50K
SYMBOL RES -512 248 R90
SYMATTR InstName R2
SYMATTR Value 2.49K
SYMBOL RES -432 184 R90
SYMATTR InstName R3
SYMATTR Value 16.9K
SYMBOL RES -16 280 R270
SYMATTR InstName R4
SYMATTR Value 6.8K
SYMBOL RES -32 56 R90
SYMATTR InstName R5
SYMATTR Value 17K
SYMBOL RES 32 120 R90
SYMATTR InstName R6
SYMATTR Value 17K
SYMBOL CAP -528 120 R90
SYMATTR InstName C1
SYMATTR Value 1000p
SYMBOL CAP -64 344 M180
SYMATTR InstName C2
SYMATTR Value 1500p
SYMBOL CAP 112 280 R0
SYMATTR InstName C3
SYMATTR Value .015
SYMBOL VOLTAGE -608 -296 R0
SYMATTR InstName V1
SYMATTR Value 3.3
SYMBOL ind 336 -392 R270
SYMATTR InstName L5
SYMATTR Value 100
SYMATTR SpiceLine Rpar=5000
SYMBOL POLCAP 512 -392 R0
SYMATTR InstName C4
SYMATTR Value 100
SYMBOL POWERPRODUCTS\\LT1533 -288 104 R0
SYMATTR InstName U1
SYMBOL RES 608 -296 M180
SYMATTR InstName Rload
SYMATTR Value 50
SYMBOL MISC\\FIXEDIND -48 -104 R270
SYMATTR InstName L6
SYMATTR Value 25n
SYMATTR SpiceLine Rser=0.02 Rpar=5000