* SPICE netlist
MQ1 IN N012 N014 N014 PHM21NQ15T
D2 DRVcc N010 RF04UA2D
C1 0 N003 2.2
MQ2 N004 N013 N015 N015 PHM21NQ15T
MQ3 N015 N017 N023 N023 PHM21NQ15T
V1 IN 0 36
C2 N004 0 30
R1 N022 0 12.1K
R2 OUT1 N022 475K
R3 N023 0 4m
C3 N010 N014 0.22
C4 N011 N015 0.22
C5 N018 0 .005
C6 N020 0 10n
R4 N021 N020 10K
MQ4 N014 N016 N023 N023 PHM21NQ15T
L1 N014 N015 15 Rpar=1K
R5 N004 OUT1 4m
R6 N019 0 56.2K
C7 OUT1 0 56
R7 OUT1 N005 100
R8 N004 N007 100
C8 N005 N007 4.7
Rload OUT1 0 10
R9 IN N008 10K
R11 N006 0 1.21K
R12 IN N006 133K
C9 DRVcc 0 10
C10 N021 0 100p
D1 DRVcc N011 RF04UA2D
XU1 N022 N018 N023 0 N021 0 NC_01 N019 N008 IN N004 0 N007 N005 N006 N015 N013 N011 N017 NC_02 N003 IN N016 0 N010 N012 N014 N009 DRVcc IN NC_03 MP_04 MP_05 IN N001 N002 MP_06 MP_07 MP_08 MP_09 MP_10 0 LTC3777 ;pnba FB)SS)Sense+)Sense-)Ith)SGND)PLLIN)Freq)Run)Vinsns)Voutsns)Mode)Iosense+)Iosense-)VinOV)SW2))Boost2))EXTVcc)V5)Vin))PGND/BGND)Boost1))SW1)Pgood)DRVcc)BVin)DRVset)))BRun)BSW)BVfb))))))BOV
L2 N001 BOUT 220 Rpar=1K
C11 BOUT 0 44
R10 BOUT N002 715K
R13 N002 0 51.1K
R14 BOUT 0 200
R15 N009 N003 100K
.tran 7m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2208 1424
WIRE 272 -712 208 -712
WIRE 640 -712 352 -712
WIRE 736 -712 640 -712
WIRE 832 -712 736 -712
WIRE 736 -696 736 -712
WIRE 832 -696 832 -712
WIRE -256 -664 -672 -664
WIRE 48 -664 -256 -664
WIRE 496 -648 352 -648
WIRE 528 -648 496 -648
WIRE 640 -648 640 -712
WIRE 640 -648 608 -648
WIRE -256 -616 -256 -664
WIRE -112 -616 -112 -632
WIRE 48 -616 48 -664
WIRE 208 -616 208 -712
WIRE 352 -616 352 -648
WIRE 736 -600 736 -632
WIRE 832 -600 832 -616
WIRE 496 -552 496 -648
WIRE 528 -552 496 -552
WIRE 640 -552 608 -552
WIRE -528 -520 -544 -520
WIRE -448 -520 -464 -520
WIRE -336 -520 -448 -520
WIRE -960 -440 -1104 -440
WIRE -912 -440 -960 -440
WIRE -672 -440 -672 -664
WIRE -672 -440 -912 -440
WIRE -384 -440 -672 -440
WIRE -336 -440 -384 -440
WIRE 832 -440 432 -440
WIRE -1104 -424 -1104 -440
WIRE -672 -408 -672 -440
WIRE -912 -392 -912 -440
WIRE -384 -360 -384 -440
WIRE -336 -360 -384 -360
WIRE 576 -360 432 -360
WIRE 656 -360 576 -360
WIRE 992 -360 736 -360
WIRE -1104 -328 -1104 -344
WIRE -912 -280 -912 -312
WIRE -336 -280 -912 -280
WIRE 576 -280 576 -296
WIRE 576 -280 432 -280
WIRE 720 -280 576 -280
WIRE 832 -280 832 -440
WIRE 832 -280 800 -280
WIRE -912 -264 -912 -280
WIRE -672 -200 -672 -328
WIRE -336 -200 -672 -200
WIRE 448 -200 432 -200
WIRE -912 -168 -912 -184
WIRE -448 -120 -448 -520
WIRE -432 -120 -448 -120
WIRE -336 -120 -352 -120
WIRE 528 -72 528 -104
WIRE -656 -40 -672 -40
WIRE -544 -40 -656 -40
WIRE -336 -40 -544 -40
WIRE -672 -24 -672 -40
WIRE -960 40 -960 -440
WIRE -544 40 -544 24
WIRE -336 40 -544 40
WIRE 528 40 528 -8
WIRE 528 40 432 40
WIRE 832 40 832 -280
WIRE 832 40 720 40
WIRE 864 40 832 40
WIRE 960 40 944 40
WIRE 992 40 992 -360
WIRE 992 40 960 40
WIRE 1104 40 992 40
WIRE -672 56 -672 40
WIRE 832 56 832 40
WIRE 992 56 992 40
WIRE 1104 56 1104 40
WIRE -336 120 -912 120
WIRE 672 120 432 120
WIRE 832 152 832 120
WIRE 992 152 992 120
WIRE 1104 152 1104 136
WIRE -960 200 -960 136
WIRE -960 200 -992 200
WIRE -544 200 -544 104
WIRE -544 200 -960 200
WIRE -336 200 -544 200
WIRE 528 200 528 104
WIRE 528 200 432 200
WIRE 720 200 720 136
WIRE 720 200 528 200
WIRE 752 200 720 200
WIRE -336 280 -912 280
WIRE 672 280 432 280
WIRE 960 344 960 40
WIRE -432 360 -480 360
WIRE -336 360 -368 360
WIRE 464 360 432 360
WIRE 560 360 544 360
WIRE -544 440 -608 440
WIRE -416 440 -464 440
WIRE -336 440 -416 440
WIRE 960 440 960 424
WIRE 960 440 432 440
WIRE -608 456 -608 440
WIRE -416 456 -416 440
WIRE 960 456 960 440
WIRE -608 536 -608 520
WIRE -416 536 -416 520
WIRE -208 536 -208 520
WIRE 304 536 304 520
WIRE 960 552 960 536
WIRE -32 584 -32 520
WIRE 16 584 -32 584
WIRE 144 584 144 520
WIRE 144 584 96 584
WIRE 176 584 144 584
WIRE -960 648 -960 296
WIRE -32 648 -32 584
WIRE -32 648 -960 648
WIRE 720 648 720 296
WIRE 720 648 -32 648
WIRE -992 696 -992 200
WIRE 240 696 -992 696
WIRE 752 696 752 200
WIRE 752 696 320 696
FLAG -544 -520 0
FLAG -1104 -328 0
FLAG 832 152 0
FLAG 960 552 0
FLAG 176 584 0
FLAG 304 536 0
FLAG -480 360 0
FLAG -608 536 0
FLAG -208 536 0
FLAG 1104 152 0
FLAG 560 360 0
FLAG -1104 -440 IN
FLAG 992 152 0
FLAG -912 -168 0
FLAG -672 56 0
FLAG 448 -200 0
FLAG -416 536 0
FLAG 1104 40 OUT1
FLAG -656 -40 DRVcc
FLAG 528 -104 DRVcc
FLAG -112 -632 0
FLAG 736 -600 0
FLAG 640 -552 0
FLAG 832 -712 BOUT
FLAG 832 -600 0
SYMBOL nmos -912 40 M0
SYMATTR Value PHM21NQ15T
SYMATTR InstName Q1
SYMBOL diode -560 -40 R0
SYMATTR InstName D2
SYMATTR Value RF04UA2D
SYMBOL cap -528 -536 M90
SYMATTR InstName C1
SYMATTR Value 2.2
SYMBOL nmos 672 40 R0
SYMATTR Value PHM21NQ15T
SYMATTR InstName Q2
SYMBOL nmos 672 200 R0
SYMATTR Value PHM21NQ15T
SYMATTR InstName Q3
SYMBOL voltage -1104 -440 R0
SYMATTR InstName V1
SYMATTR Value 36
SYMBOL cap 816 56 R0
SYMATTR InstName C2
SYMATTR Value 30
SYMBOL res 944 440 R0
SYMATTR InstName R1
SYMATTR Value 12.1K
SYMBOL res 944 328 R0
SYMATTR InstName R2
SYMATTR Value 475K
SYMBOL res 0 600 R270
SYMATTR InstName R3
SYMATTR Value 4m
SYMBOL cap -560 40 R0
SYMATTR InstName C3
SYMATTR Value 0.22
SYMBOL cap 512 40 R0
SYMATTR InstName C4
SYMATTR Value 0.22
SYMBOL cap -368 344 R90
SYMATTR InstName C5
SYMATTR Value .005
SYMBOL cap -624 456 R0
SYMATTR InstName C6
SYMATTR Value 10n
SYMBOL res -448 424 R90
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL nmos -912 200 M0
SYMATTR Value PHM21NQ15T
SYMATTR InstName Q4
SYMBOL ind 224 712 R270
SYMATTR InstName L1
SYMATTR Value 15
SYMATTR SpiceLine Rpar=1K
SYMBOL res 848 56 R270
SYMATTR InstName R5
SYMATTR Value 4m
SYMBOL res 448 376 R270
SYMATTR InstName R6
SYMATTR Value 56.2K
SYMBOL cap 976 56 R0
SYMATTR InstName C7
SYMATTR Value 56
SYMBOL res 752 -376 R90
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL res 816 -296 R90
SYMATTR InstName R8
SYMATTR Value 100
SYMBOL cap 560 -360 R0
SYMATTR InstName C8
SYMATTR Value 4.7
SYMBOL res 1088 40 R0
SYMATTR InstName Rload
SYMATTR Value 10
SYMBOL res -688 -424 R0
SYMATTR InstName R9
SYMATTR Value 10K
SYMBOL res -928 -280 R0
SYMATTR InstName R11
SYMATTR Value 1.21K
SYMBOL res -928 -408 R0
SYMATTR InstName R12
SYMATTR Value 133K
SYMBOL cap -688 -24 R0
SYMATTR InstName C9
SYMATTR Value 10
SYMBOL cap -432 456 R0
SYMATTR InstName C10
SYMATTR Value 100p
SYMBOL diode 512 -72 R0
SYMATTR InstName D1
SYMATTR Value RF04UA2D
SYMBOL LTC3777 48 -56 R0
SYMATTR InstName U1
SYMBOL ind 256 -696 R270
SYMATTR InstName L2
SYMATTR Value 220
SYMATTR SpiceLine Rpar=1K
SYMBOL cap 720 -696 R0
SYMATTR InstName C11
SYMATTR Value 44
SYMBOL res 624 -664 R90
SYMATTR InstName R10
SYMATTR Value 715K
SYMBOL res 512 -536 R270
SYMATTR InstName R13
SYMATTR Value 51.1K
SYMBOL res 816 -712 R0
SYMATTR InstName R14
SYMATTR Value 200
SYMBOL res -336 -136 R90
SYMATTR InstName R15
SYMATTR Value 100K