* SPICE netlist
L1 N001 sw2 1 Rser=13m
R1 N006 0 10K
R2 OUT N006 110K
C1 N010 0 2200p
V1 IN 0 PWL(0 0 100u 8 2m 8 2.1m 11 3m 11 3.1m 12 4m 12 4.1m 13 5m 13 5.1m 24 10m 24)
C2 IN 0 22 x1
C3 OUT 0 22 Rser=5m
R3 N008 0 59K
R4 N007 N010 10K
MQ1 OUT tg2 sw2 sw2 BSC032NE2LS
C4 N003 sw2 .1
MQ2 sw2 bg2 0 0 BSC032NE2LS
R5 IN N004 383K
R6 N004 0 165K
C5 IN 0 4.7 x2
C6 intvcc 0 4.7
C7 vref 0 .47
R9 N005 intvcc 100K
C8 sw1 N002 .1
MQ3 IN tg1 sw1 sw1 BSZ065N06LS5
MQ4 sw1 bg1 0 0 BSZ065N06LS5
C9 N009 0 10n
R10 N001 sw1 5m
Rload OUT 0 3
C11 OUT 0 1
C12 IN 0 .47
D1 intvcc N003 BAT46WJ
D2 intvcc N002 BAT46WJ
C13 OUT 0 22 x2 Rser=5m
XU1 bg1 N002 sw1 tg1 sw1 N001 IN intvcc N004 MP_01 vref vref MP_02 MP_03 MP_04 MP_05 N005 N009 N006 N007 N008 0 MP_06 OUT tg2 sw2 N003 bg2 0 LT8253A ;pnba BG1)BST1)SW1)TG1)LSP)LSN)Vin)INTVcc)EN/UVLO))VOUTEN)Vref)))))_PGood)SS)FB)Vc)RT)Sync/SPRD))Vout)TG2)SW2)BST2)BG2)GND
.tran 10m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2352 1424
WIRE -456 -712 -488 -712
WIRE 312 -712 -456 -712
WIRE -248 -648 -712 -648
WIRE -216 -648 -248 -648
WIRE -88 -648 -216 -648
WIRE -72 -648 -88 -648
WIRE 40 -648 8 -648
WIRE 56 -648 40 -648
WIRE 168 -648 136 -648
WIRE 200 -648 168 -648
WIRE 472 -648 200 -648
WIRE -456 -616 -456 -712
WIRE 312 -616 312 -712
WIRE -216 -568 -216 -648
WIRE -88 -568 -88 -648
WIRE 40 -568 40 -648
WIRE 168 -568 168 -648
WIRE -1080 -488 -1176 -488
WIRE -968 -488 -1080 -488
WIRE -872 -488 -968 -488
WIRE -856 -488 -872 -488
WIRE -712 -488 -712 -648
WIRE -712 -488 -760 -488
WIRE -632 -488 -712 -488
WIRE -456 -488 -456 -552
WIRE -456 -488 -568 -488
WIRE -328 -488 -456 -488
WIRE 312 -488 312 -552
WIRE 312 -488 280 -488
WIRE 344 -488 312 -488
WIRE 472 -488 472 -648
WIRE 472 -488 408 -488
WIRE 632 -488 472 -488
WIRE 744 -488 728 -488
WIRE 792 -488 744 -488
WIRE 1032 -488 792 -488
WIRE 1080 -488 1032 -488
WIRE 1176 -488 1080 -488
WIRE -1176 -472 -1176 -488
WIRE -1080 -472 -1080 -488
WIRE -968 -472 -968 -488
WIRE -712 -472 -712 -488
WIRE 472 -472 472 -488
WIRE 792 -472 792 -488
WIRE 1080 -472 1080 -488
WIRE 1176 -472 1176 -488
WIRE -392 -392 -664 -392
WIRE -328 -392 -392 -392
WIRE 344 -392 280 -392
WIRE 424 -392 344 -392
WIRE -1176 -376 -1176 -392
WIRE -1080 -376 -1080 -408
WIRE -968 -376 -968 -408
WIRE 792 -376 792 -408
WIRE 1080 -376 1080 -408
WIRE 1176 -376 1176 -392
WIRE -712 -360 -712 -376
WIRE 472 -360 472 -376
WIRE -776 -312 -776 -440
WIRE -392 -312 -776 -312
WIRE -328 -312 -392 -312
WIRE 344 -312 280 -312
WIRE 648 -312 648 -440
WIRE 648 -312 344 -312
WIRE -952 -232 -968 -232
WIRE -872 -232 -872 -488
WIRE -872 -232 -888 -232
WIRE -328 -232 -872 -232
WIRE 744 -232 744 -488
WIRE 744 -232 280 -232
WIRE 760 -232 744 -232
WIRE -872 -136 -872 -152
WIRE -328 -136 -872 -136
WIRE -872 -120 -872 -136
WIRE -600 -40 -616 -40
WIRE -488 -40 -488 -712
WIRE -488 -40 -536 -40
WIRE -392 -40 -488 -40
WIRE -328 -40 -392 -40
WIRE 1032 -40 1032 -488
WIRE -872 -24 -872 -40
WIRE -488 56 -488 -40
WIRE -440 56 -488 56
WIRE -328 56 -360 56
WIRE 1032 56 1032 40
WIRE 1032 56 280 56
WIRE 1032 72 1032 56
WIRE -536 152 -552 152
WIRE -440 152 -472 152
WIRE -392 152 -440 152
WIRE -328 152 -392 152
WIRE 1032 168 1032 152
WIRE -440 248 -440 152
WIRE -328 248 -440 248
WIRE -328 424 -344 424
WIRE 312 424 280 424
WIRE -24 536 -24 520
WIRE 168 536 168 520
WIRE -216 552 -216 520
WIRE -216 632 -216 616
WIRE -24 632 -24 616
WIRE 168 632 168 616
WIRE -24 712 -24 696
FLAG -1080 -376 0
FLAG -24 712 0
FLAG 1080 -376 0
FLAG 1176 -488 OUT
FLAG 1176 -376 0
FLAG 168 632 0
FLAG 472 -360 0
FLAG -1176 -376 0
FLAG -1176 -488 IN
FLAG -872 -24 0
FLAG 312 424 0
FLAG -968 -376 0
FLAG -616 -40 0
FLAG -552 152 0
FLAG -344 424 0
FLAG -712 -360 0
FLAG -216 632 0
FLAG 1032 168 0
FLAG 824 -232 0
FLAG -968 -232 0
FLAG 792 -376 0
FLAG -392 -40 intvcc
FLAG -392 152 vref
FLAG -248 -648 sw1
FLAG 200 -648 sw2
FLAG -392 -392 bg1
FLAG -392 -312 tg1
FLAG 344 -392 bg2
FLAG 344 -312 tg2
SYMBOL ind 40 -632 R270
SYMATTR InstName L1
SYMATTR Value 1
SYMATTR SpiceLine Rser=13m
SYMBOL res 1016 56 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL res 1016 -56 R0
SYMATTR InstName R2
SYMATTR Value 110K
SYMBOL cap -40 632 R0
SYMATTR InstName C1
SYMATTR Value 2200p
SYMBOL voltage -1176 -488 M0
SYMATTR InstName V1
SYMATTR Value PWL(0 0 100u 8 2m 8 2.1m 11 3m 11 3.1m 12 4m 12 4.1m 13 5m 13 5.1m 24 10m 24)
SYMBOL cap -1096 -472 R0
SYMATTR Value2 x1
SYMATTR Value 22
SYMATTR InstName C2
SYMBOL cap 1064 -472 R0
SYMATTR InstName C3
SYMATTR Value 22
SYMATTR SpiceLine Rser=5m
SYMBOL res 152 520 R0
SYMATTR InstName R3
SYMATTR Value 59K
SYMBOL res -40 520 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL nmos 728 -440 M270
SYMATTR InstName Q1
SYMATTR Value BSC032NE2LS
SYMBOL cap 344 -472 R270
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL nmos 424 -472 R0
SYMATTR InstName Q2
SYMATTR Value BSC032NE2LS
SYMBOL res -888 -248 R0
SYMATTR InstName R5
SYMATTR Value 383K
SYMBOL res -888 -136 R0
SYMATTR InstName R6
SYMATTR Value 165K
SYMBOL cap -984 -472 R0
SYMATTR Value2 x2
SYMATTR Value 4.7
SYMATTR InstName C5
SYMBOL cap -536 -56 R90
SYMATTR InstName C6
SYMATTR Value 4.7
SYMBOL cap -472 136 R90
SYMATTR InstName C7
SYMATTR Value .47
SYMBOL res -344 40 R90
SYMATTR InstName R9
SYMATTR Value 100K
SYMBOL cap -632 -472 R270
SYMATTR InstName C8
SYMATTR Value .1
SYMBOL nmos -856 -440 R270
SYMATTR InstName Q3
SYMATTR Value BSZ065N06LS5
SYMBOL nmos -664 -472 M0
SYMATTR InstName Q4
SYMATTR Value BSZ065N06LS5
SYMBOL cap -232 552 R0
SYMATTR InstName C9
SYMATTR Value 10n
SYMBOL res 24 -664 R90
SYMATTR InstName R10
SYMATTR Value 5m
SYMBOL res 1160 -488 R0
SYMATTR InstName Rload
SYMATTR Value 3
SYMBOL cap 760 -216 R270
SYMATTR InstName C11
SYMATTR Value 1
SYMBOL cap -888 -248 R90
SYMATTR InstName C12
SYMATTR Value .47
SYMBOL schottky 296 -616 R0
SYMATTR InstName D1
SYMATTR Value BAT46WJ
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky -472 -616 R0
SYMATTR InstName D2
SYMATTR Value BAT46WJ
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 776 -472 R0
SYMATTR Value 22
SYMATTR Value2 x2
SYMATTR InstName C13
SYMATTR SpiceLine Rser=5m
SYMBOL LT8253A -24 -24 R0
SYMATTR InstName U1