* SPICE netlist
V1 IN 0 12
R1 IN N001 5m
R2 IN N002 100
R3 N001 N003 100
C1 N002 N003 1
C2 N002 0 10n
C3 N003 0 10n
C5 N013 0 1
C6 N006 0 1
C7 N018 0 2200p Rser=4.99K Cpar=100p
R4 N006 N007 10K
R5 N006 N009 10K
R6 N006 N011 5K
R7 N013 N016 20K
R8 N016 0 12.7K
R9 N013 N015 24.9K
R10 N015 0 9.09K
R11 N013 N017 10K
R12 N017 0 23.2K
M1 N001 N005 N010 N010 BSC050N03LS
M2 N010 N012 0 0 BSC011N03LS
C8 N008 N010 .1
D1 N004 N008 CMDSH2-3
L1 N010 OUT .56 Rser=1.8m
R13 N010 N014 1.4K
C9 N014 OUT .22
C10 OUT 0 330 V=6.3 Irms=6.6 Rser=0.006 Lser=0 mfg="KEMET" pn="T530Y337M006ATE006" type="Tantalum"
C11 OUT 0 100 x2 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
Rload OUT 0 90m
V2 N004 0 5
XU1 OUT 0 N003 N002 N018 N014 OUT N011 N009 MP_01 MP_02 MP_03 MP_04 N007 MP_05 MP_06 N016 N015 MP_07 N017 MP_08 N013 MP_09 MP_10 N006 MP_11 MP_12 MP_13 MP_14 MP_15 MP_16 MP_17 N004 0 IN N012 N008 N005 N010 MP_18 0 LTC3883-1 VIN_ON=5.5 VIN_OFF=5 Vout=1.6 Ilim_range=0 OC_limit=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m Freq=500K PHs=0 Ton_delay=.3m Ton_rise=.5m Toff_delay=.2m Toff_fall=.3m Vout_range=0 ;pnba Vsense+)Vsense-)Iin_sns)Vin_sns)Ith)Isense+)Isense-)SYNC)Pgood)))))Run)))Freq_cfg)Vout_cfg))Vtrim_cfg))VDD25)))VDD33))))))))ExtVcc)PGND)Vin)BG)Boost)TG)SW))SGND
.tran 1.5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1680 1184
WIRE -312 -592 -488 -592
WIRE -296 -592 -312 -592
WIRE -200 -592 -216 -592
WIRE 200 -592 -200 -592
WIRE -312 -560 -312 -592
WIRE -200 -560 -200 -592
WIRE -392 -528 -392 -544
WIRE -120 -528 -120 -544
WIRE -392 -448 -392 -464
WIRE -312 -448 -312 -480
WIRE -312 -448 -392 -448
WIRE -280 -448 -312 -448
WIRE -200 -448 -200 -480
WIRE -200 -448 -216 -448
WIRE -120 -448 -120 -464
WIRE -120 -448 -200 -448
WIRE 40 -448 -88 -448
WIRE 440 -448 40 -448
WIRE 440 -432 440 -448
WIRE 200 -416 200 -592
WIRE -312 -400 -312 -448
WIRE -200 -400 -200 -448
WIRE -88 -400 -88 -448
WIRE -488 -336 -488 -592
WIRE -488 -336 -600 -336
WIRE -408 -336 -488 -336
WIRE 152 -336 8 -336
WIRE 440 -336 440 -352
WIRE -600 -320 -600 -336
WIRE 40 -320 40 -448
WIRE -504 -240 -520 -240
WIRE -408 -240 -424 -240
WIRE 40 -240 40 -256
WIRE 40 -240 8 -240
WIRE -600 -224 -600 -240
WIRE 40 -224 40 -240
WIRE -520 -144 -520 -240
WIRE -504 -144 -520 -144
WIRE -408 -144 -424 -144
WIRE 40 -144 40 -160
WIRE 40 -144 8 -144
WIRE 200 -144 200 -320
WIRE 200 -144 40 -144
WIRE 424 -144 200 -144
WIRE 456 -144 424 -144
WIRE 568 -144 536 -144
WIRE 632 -144 568 -144
WIRE 728 -144 632 -144
WIRE 840 -144 728 -144
WIRE 200 -128 200 -144
WIRE 632 -128 632 -144
WIRE 728 -128 728 -144
WIRE 840 -128 840 -144
WIRE -520 -48 -520 -144
WIRE -504 -48 -520 -48
WIRE -408 -48 -424 -48
WIRE 152 -48 8 -48
WIRE 632 -32 632 -64
WIRE 728 -32 728 -64
WIRE 840 -32 840 -48
WIRE 200 -16 200 -32
WIRE -520 0 -520 -48
WIRE -440 0 -520 0
WIRE 424 32 424 -144
WIRE -520 48 -536 48
WIRE -440 48 -440 0
WIRE -440 48 -456 48
WIRE -408 48 -440 48
WIRE 24 48 8 48
WIRE -584 144 -600 144
WIRE -504 144 -520 144
WIRE -408 144 -504 144
WIRE 40 144 8 144
WIRE 424 144 424 112
WIRE 424 144 40 144
WIRE 40 160 40 144
WIRE -696 192 -824 192
WIRE -568 192 -696 192
WIRE -504 192 -504 144
WIRE -504 192 -568 192
WIRE -824 208 -824 192
WIRE -696 208 -696 192
WIRE -568 208 -568 192
WIRE -408 240 -456 240
WIRE 40 240 40 224
WIRE 40 240 8 240
WIRE 568 240 568 -144
WIRE 568 240 40 240
WIRE -728 288 -824 288
WIRE -600 288 -696 288
WIRE -456 288 -456 240
WIRE -456 288 -568 288
WIRE -824 304 -824 288
WIRE -696 304 -696 288
WIRE -568 304 -568 288
WIRE -408 336 -456 336
WIRE 40 336 40 240
WIRE 40 336 8 336
WIRE -824 400 -824 384
WIRE -696 400 -696 384
WIRE -568 400 -568 384
WIRE -600 432 -600 288
WIRE -456 432 -456 336
WIRE -456 432 -600 432
WIRE -408 432 -424 432
WIRE 40 432 8 432
WIRE -728 448 -728 288
WIRE -424 448 -424 432
WIRE -424 448 -728 448
WIRE -264 512 -264 496
WIRE -136 512 -136 496
WIRE -136 592 -136 576
FLAG -264 512 0
FLAG -600 -224 0
FLAG -120 -544 0
FLAG -392 -544 0
FLAG -600 144 0
FLAG -536 48 0
FLAG -136 592 0
FLAG -824 400 0
FLAG -568 400 0
FLAG -696 400 0
FLAG 24 48 0
FLAG 200 -16 0
FLAG 632 -32 0
FLAG 728 -32 0
FLAG 840 -32 0
FLAG -600 -336 IN
FLAG 840 -144 OUT
FLAG 40 432 0
FLAG 440 -336 0
SYMBOL voltage -600 -336 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -312 -576 R270
SYMATTR InstName R1
SYMATTR Value 5m
SYMBOL res -328 -576 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL res -216 -576 R0
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL cap -280 -432 R270
SYMATTR InstName C1
SYMATTR Value 1
SYMBOL cap -408 -464 M180
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL cap -136 -464 M180
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL cap -520 128 R90
SYMATTR InstName C5
SYMATTR Value 1
SYMBOL cap -456 32 R90
SYMATTR InstName C6
SYMATTR Value 1
SYMBOL cap -152 512 R0
SYMATTR InstName C7
SYMATTR Value 2200p
SYMATTR SpiceLine Rser=4.99K Cpar=100p
SYMBOL res -520 -224 R270
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res -520 -128 R270
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res -520 -32 R270
SYMATTR InstName R6
SYMATTR Value 5K
SYMBOL res -840 192 R0
SYMATTR InstName R7
SYMATTR Value 20K
SYMBOL res -840 288 R0
SYMATTR InstName R8
SYMATTR Value 12.7K
SYMBOL res -584 192 R0
SYMATTR InstName R9
SYMATTR Value 24.9K
SYMBOL res -584 288 R0
SYMATTR InstName R10
SYMATTR Value 9.09K
SYMBOL res -712 192 R0
SYMATTR InstName R11
SYMATTR Value 10K
SYMBOL res -712 288 R0
SYMATTR InstName R12
SYMATTR Value 23.2K
SYMBOL nmos 152 -416 R0
SYMATTR InstName M1
SYMATTR Value BSC050N03LS
SYMBOL nmos 152 -128 R0
SYMATTR InstName M2
SYMATTR Value BSC011N03LS
SYMBOL cap 24 -224 R0
SYMATTR InstName C8
SYMATTR Value .1
SYMBOL schottky 24 -320 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 440 -128 R270
SYMATTR InstName L1
SYMATTR Value .56
SYMATTR SpiceLine Rser=1.8m
SYMBOL res 408 16 R0
SYMATTR InstName R13
SYMATTR Value 1.4K
SYMBOL cap 24 160 R0
SYMATTR InstName C9
SYMATTR Value .22
SYMBOL polcap 616 -128 R0
SYMATTR Value 330
SYMATTR InstName C10
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=6.6 Rser=0.006 Lser=0 mfg="KEMET" pn="T530Y337M006ATE006" type="Tantalum"
SYMBOL cap 712 -128 R0
SYMATTR Value2 x2
SYMATTR InstName C11
SYMATTR Value 100
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res 824 -144 R0
SYMATTR InstName Rload
SYMATTR Value 90m
SYMBOL voltage 440 -448 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL PowerProducts\\LTC3883-1 -200 48 R0
SYMATTR InstName U1