* SPICE netlist
L2 N002 OUT 25 Rser=80m
L1 IN N001 100 Rser=.28
MQ1 N001 N003 N004 N004 Si4488DY
R1 N004 0 8m
C1 0 N010 1
MQ3 N002 N005 0 0 Si4480DY
C5 OUT 0 330 Rser=15m
C8 OUT 0 1 Rser=1m
V1 IN 0 36
C9 N014 0 22n
R10 N004 N006 1.2K
R11 N011 0 120K
Rload OUT 0 12
XU1 N003 0 N010 IN IN N006 N011 0 N014 N012 N009 N008 OUT N007 0 N005 ADP1071-2 ;pnba Gate)Agnd1)Vreg1)Vin)EN)CS)Rt)Sync)SS2)Comp)FB)OVP)Vdd2)Vreg2)Agnd2)SR
C2 0 N007 2.2
R2 N013 N012 50K
C3 N012 0 200p
C6 N013 0 10n
R3 OUT N008 8.87K
R5 N008 0 .976K
R6 OUT N009 8.87K
R7 N009 0 .976K
R4 N003 0 100K
K1 L1 L2 1
.tran 4.5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1168 992
WIRE -504 -496 -584 -496
WIRE -104 -496 -504 -496
WIRE 360 -496 -56 -496
WIRE 408 -496 360 -496
WIRE 504 -496 408 -496
WIRE 584 -496 504 -496
WIRE -584 -480 -584 -496
WIRE -104 -480 -104 -496
WIRE -56 -480 -56 -496
WIRE 408 -480 408 -496
WIRE 504 -480 504 -496
WIRE 584 -480 584 -496
WIRE -584 -384 -584 -400
WIRE -104 -384 -104 -400
WIRE -104 -384 -200 -384
WIRE -56 -384 -56 -400
WIRE 72 -384 -56 -384
WIRE 408 -384 408 -416
WIRE 504 -384 504 -416
WIRE 584 -384 584 -400
WIRE -200 -368 -200 -384
WIRE 72 -320 72 -384
WIRE -360 -288 -456 -288
WIRE -248 -288 -360 -288
WIRE -456 -272 -456 -288
WIRE -200 -256 -200 -272
WIRE -200 -256 -312 -256
WIRE -312 -240 -312 -256
WIRE -200 -240 -200 -256
WIRE 232 -240 120 -240
WIRE 72 -208 72 -224
WIRE -456 -176 -456 -192
WIRE -200 -144 -200 -160
WIRE -312 -48 -312 -160
WIRE -232 -48 -312 -48
WIRE 232 -48 232 -240
WIRE 232 -48 120 -48
WIRE 360 -48 360 -496
WIRE 360 -48 280 -48
WIRE 504 -48 360 -48
WIRE 360 -16 360 -48
WIRE 504 -16 504 -48
WIRE -360 32 -360 -288
WIRE -232 32 -360 32
WIRE 136 32 120 32
WIRE 232 32 200 32
WIRE 360 96 360 64
WIRE 360 96 328 96
WIRE 504 96 504 64
WIRE 504 96 456 96
WIRE -312 112 -328 112
WIRE -232 112 -248 112
WIRE 280 112 280 -48
WIRE 280 112 120 112
WIRE 360 112 360 96
WIRE 504 112 504 96
WIRE -504 192 -504 -496
WIRE -248 192 -504 192
WIRE -232 192 -248 192
WIRE 328 192 328 96
WIRE 328 192 120 192
WIRE 360 208 360 192
WIRE 504 208 504 192
WIRE -248 272 -248 192
WIRE -232 272 -248 272
WIRE 456 272 456 96
WIRE 456 272 120 272
WIRE -344 352 -360 352
WIRE -232 352 -264 352
WIRE 280 352 120 352
WIRE 328 352 280 352
WIRE 456 352 408 352
WIRE 280 368 280 352
WIRE 456 368 456 352
WIRE -232 432 -248 432
WIRE 136 432 120 432
WIRE 216 432 200 432
WIRE 280 448 280 432
WIRE 456 448 456 432
WIRE -120 496 -120 480
WIRE 8 496 8 480
FLAG -200 -144 0
FLAG -328 112 0
FLAG 72 -208 0
FLAG 504 -384 0
FLAG 408 -384 0
FLAG 584 -384 0
FLAG 584 -496 OUT
FLAG 8 496 0
FLAG -584 -384 0
FLAG -248 432 0
FLAG 216 432 0
FLAG -360 352 0
FLAG 232 32 0
FLAG 280 448 0
FLAG 456 448 0
FLAG 360 208 0
FLAG 504 208 0
FLAG -120 496 0
FLAG -456 -176 0
FLAG -584 -496 IN
SYMBOL ind2 -40 -384 R180
SYMATTR InstName L2
SYMATTR Value 25
SYMATTR Type ind
SYMATTR SpiceLine Rser=80m
SYMBOL ind2 -120 -496 R0
SYMATTR InstName L1
SYMATTR Value 100
SYMATTR Type ind
SYMATTR SpiceLine Rser=.28
SYMBOL nmos -248 -368 R0
SYMATTR InstName Q1
SYMATTR Value Si4488DY
SYMBOL res -216 -256 R0
SYMATTR InstName R1
SYMATTR Value 8m
SYMBOL cap -312 96 M90
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL nmos 120 -320 M0
SYMATTR Value Si4480DY
SYMATTR InstName Q3
SYMBOL cap 392 -480 R0
SYMATTR Value 330
SYMATTR InstName C5
SYMATTR SpiceLine Rser=15m
SYMBOL cap 488 -480 R0
SYMATTR InstName C8
SYMATTR Value 1
SYMATTR SpiceLine Rser=1m
SYMBOL voltage -584 -496 R0
SYMATTR InstName V1
SYMATTR Value 36
SYMBOL cap 136 448 R270
SYMATTR InstName C9
SYMATTR Value 22n
SYMBOL res -328 -256 R0
SYMATTR InstName R10
SYMATTR Value 1.2K
SYMBOL res -248 336 R90
SYMATTR InstName R11
SYMATTR Value 120K
SYMBOL res 568 -496 R0
SYMATTR InstName Rload
SYMATTR Value 12
SYMBOL ADP1071-2 -56 192 R0
SYMATTR InstName U1
SYMBOL cap 200 16 R90
SYMATTR InstName C2
SYMATTR Value 2.2
SYMBOL res 424 336 R90
SYMATTR InstName R2
SYMATTR Value 50K
SYMBOL cap 264 368 R0
SYMATTR InstName C3
SYMATTR Value 200p
SYMBOL cap 440 368 R0
SYMATTR InstName C6
SYMATTR Value 10n
SYMBOL res 344 -32 R0
SYMATTR InstName R3
SYMATTR Value 8.87K
SYMBOL res 344 96 R0
SYMATTR InstName R5
SYMATTR Value .976K
SYMBOL res 488 -32 R0
SYMATTR InstName R6
SYMATTR Value 8.87K
SYMBOL res 488 96 R0
SYMATTR InstName R7
SYMATTR Value .976K
SYMBOL res -472 -288 R0
SYMATTR InstName R4
SYMATTR Value 100K