* SPICE netlist
R1 N008 N017 1
R2 N006 N015 1
R3 N009 N018 1
R4 N007 0 2m
R5 N007 N010 10
R6 0 N011 10
C1 0 N010 1n
C2 N011 0 1n
C3 N002 N012 0.22
C4 N016 N003 0.22
C5 N023 0 4.7
R7 N021 0 100K
R8 N029 0 365K
C6 N030 0 10n Cpar=680p Rser=10K
C7 N031 0 10n
C8 N001 N020 47n
L1 N002 N003 3.3 Rser=.47m Rpar=1K
D1 N013 N012 MURS120
D2 N013 N016 MURS120
R9 N004 N019 100
R10 N004 OUT 2m
R11 N022 0 12.1K
V1 IN 0 12
R12 IN N027 93.1K
R13 N027 0 12.1K
R14 N036 N023 100K
V2 OUT 0 12
MQ1 N001 N008 N002 N002 BSC016N04LS
MQ2 N002 N005 N007 N007 BSC016N04LS
MQ3 N004 N009 N003 N003 BSC016N04LS
MQ4 N003 N006 N007 N007 BSC016N04LS
R15 N001 IN 2m
R16 N005 N014 1
C9 N001 0 100n
R17 IN N020 100
R18 IN N021 665K
R19 N023 N025 127K
R20 N025 0 54.9K
R21 OUT N022 133K
C10 OUT N019 47n
C11 0 OUT 100n
R22 N027 N034 27.4K
A1 N039 0 0 N043 0 0 N042 0 XOR Trise=10n
S1 0 N034 N035 0 SW1
S2 0 N035 N039 0 SW1
R23 N023 N035 100K
V3 N039 0 PWL 0 0 +10u 3.3 2.5m 3.3 +10u 0
R24 N039 N043 68.1K
C12 N043 0 220p
S3 0 N024 N042 0 SW1
C13 0 N013 4.7
C14 N001 0 10
C15 N004 0 10
C16 N026 0 4.7n Rpar=17.4K
C17 N028 0 4.7n Rpar=17.4K
C18 N033 0 22n Rpar=23.7K
C19 N032 0 4.7n Rpar=17.4K
C20 N038 0 4.7n Rpar=17.4K
C21 N037 0 22n Rpar=23.7K
R25 N041 0 20K
R26 OUT N041 154K
R27 N040 N041 100K
R28 OUT N024 681K
R29 N024 0 100K
XU1 N021 N011 N010 N023 N027 N022 N033 N030 N031 NC_01 0 N029 0 N014 N013 N015 N016 N018 N003 N024 N002 N017 N012 N025 N043 N036 N038 N037 NC_02 OUT N019 N001 N020 IN N013 N032 MP_03 N026 N028 N040 0 LT8708 ;pnba _SHDN)CSN)CSP)LDO33)FBIN)FBOUT)IMON_OP)VC)SS)CLKOUT)SYNC)RT)GND)BG1)GATEVCC)BG2)BOOST2)TG2)SW2)SWEN)SW1)TG1)BOOST1)MODE)DIR)_RVSOFF)IMON_ON)IMON_INN)ExtVcc)CSNOUT)CSPOUT)CSNIN)CSPIN)Vinchip)INTVCC)IMON_INP))ICP)ICN)VOUTLOMON)VINHIMON
.tran 5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2944 1760
WIRE -960 -864 -1088 -864
WIRE -848 -864 -960 -864
WIRE -704 -864 -848 -864
WIRE -624 -864 -704 -864
WIRE -576 -864 -624 -864
WIRE -464 -864 -496 -864
WIRE -400 -864 -464 -864
WIRE -352 -864 -400 -864
WIRE -16 -864 -256 -864
WIRE 128 -864 -16 -864
WIRE 256 -864 128 -864
WIRE 480 -864 336 -864
WIRE 624 -864 480 -864
WIRE 864 -864 624 -864
WIRE 1008 -864 960 -864
WIRE 1072 -864 1008 -864
WIRE 1104 -864 1072 -864
WIRE 1216 -864 1184 -864
WIRE 1344 -864 1216 -864
WIRE 1424 -864 1344 -864
WIRE -1088 -848 -1088 -864
WIRE 1424 -848 1424 -864
WIRE 128 -832 128 -864
WIRE 480 -832 480 -864
WIRE 1008 -832 1008 -864
WIRE -400 -816 -400 -864
WIRE -1088 -752 -1088 -768
WIRE 80 -752 64 -752
WIRE 544 -752 528 -752
WIRE 1424 -752 1424 -768
WIRE 1008 -736 1008 -768
WIRE -400 -720 -400 -752
WIRE 128 -720 128 -736
WIRE 304 -720 128 -720
WIRE 480 -720 480 -736
WIRE 480 -720 304 -720
WIRE 304 -704 304 -720
WIRE 304 -704 192 -704
WIRE 304 -688 304 -704
WIRE 544 -672 544 -752
WIRE 64 -656 64 -752
WIRE 192 -592 192 -704
WIRE 304 -592 304 -608
WIRE 400 -592 304 -592
WIRE -624 -576 -624 -864
WIRE -272 -576 -272 -816
WIRE 304 -576 304 -592
WIRE 400 -576 400 -592
WIRE 880 -576 880 -816
WIRE 1072 -576 1072 -864
WIRE 192 -480 192 -512
WIRE 224 -480 192 -480
WIRE 304 -480 288 -480
WIRE 320 -480 304 -480
WIRE 400 -480 400 -496
WIRE 400 -480 384 -480
WIRE 304 -464 304 -480
WIRE 96 -416 -144 -416
WIRE 960 -416 160 -416
WIRE -144 -352 -144 -416
WIRE -112 -352 -144 -352
WIRE -16 -352 -16 -864
WIRE -16 -352 -48 -352
WIRE 64 -352 64 -576
WIRE 112 -352 64 -352
WIRE 544 -352 544 -592
WIRE 544 -352 496 -352
WIRE 624 -352 624 -864
WIRE 656 -352 624 -352
WIRE 752 -352 720 -352
WIRE 784 -352 752 -352
WIRE 960 -352 960 -416
WIRE 960 -352 848 -352
WIRE -416 -336 -416 -352
WIRE 192 -336 192 -480
WIRE 240 -336 192 -336
WIRE 400 -336 400 -480
WIRE 400 -336 368 -336
WIRE -272 -304 -272 -496
WIRE -144 -304 -144 -352
WIRE -16 -304 -16 -352
WIRE 112 -304 112 -352
WIRE 240 -304 240 -336
WIRE 368 -304 368 -336
WIRE 496 -304 496 -352
WIRE 624 -304 624 -352
WIRE 752 -304 752 -352
WIRE 880 -304 880 -496
WIRE -464 -240 -464 -864
WIRE -416 -240 -416 -272
WIRE -416 -240 -464 -240
WIRE -320 -240 -416 -240
WIRE 1072 -240 1072 -496
WIRE 1072 -240 928 -240
WIRE 1344 -192 1344 -864
WIRE -624 -176 -624 -496
WIRE -416 -176 -624 -176
WIRE -320 -176 -416 -176
WIRE 1072 -176 928 -176
WIRE 1216 -176 1216 -864
WIRE 1216 -176 1072 -176
WIRE -848 -160 -848 -864
WIRE 1072 -160 1072 -176
WIRE -704 -112 -704 -864
WIRE -320 -112 -704 -112
WIRE 1072 -80 1072 -96
WIRE -848 -48 -848 -80
WIRE -320 -48 -848 -48
WIRE 1344 -48 1344 -112
WIRE 1344 -48 928 -48
WIRE -1264 -16 -1472 -16
WIRE -752 -16 -1264 -16
WIRE -464 -16 -752 -16
WIRE 1344 -16 1344 -48
WIRE -848 0 -848 -48
WIRE -320 16 -608 16
WIRE 960 16 960 -352
WIRE 960 16 928 16
WIRE 976 16 960 16
WIRE 1056 16 1040 16
WIRE -752 80 -752 64
WIRE -672 80 -752 80
WIRE -544 80 -560 80
WIRE -464 80 -464 -16
WIRE -464 80 -480 80
WIRE -320 80 -464 80
WIRE 960 80 960 16
WIRE 960 80 928 80
WIRE -848 96 -848 80
WIRE -752 96 -752 80
WIRE 1344 96 1344 64
WIRE -960 128 -960 -864
WIRE -672 144 -672 80
WIRE -320 144 -672 144
WIRE 1472 144 928 144
WIRE -752 208 -752 176
WIRE -320 208 -672 208
WIRE 1312 208 928 208
WIRE -960 256 -960 208
WIRE -960 256 -1104 256
WIRE -672 256 -672 208
WIRE -672 256 -960 256
WIRE -432 272 -464 272
WIRE -320 272 -352 272
WIRE 1040 272 928 272
WIRE 1120 272 1104 272
WIRE -1264 288 -1264 -16
WIRE -960 288 -960 256
WIRE -1104 304 -1104 256
WIRE -320 336 -432 336
WIRE 1136 336 928 336
WIRE -432 352 -432 336
WIRE -960 400 -960 368
WIRE -320 400 -352 400
WIRE 976 400 928 400
WIRE -1104 448 -1104 384
WIRE -432 448 -432 416
WIRE -1264 464 -1264 368
WIRE -1152 464 -1264 464
WIRE 80 480 80 464
WIRE 512 480 512 464
WIRE -1264 496 -1264 464
WIRE 224 496 224 464
WIRE 656 496 656 464
WIRE 800 496 800 464
WIRE 976 496 976 400
WIRE 1136 496 1136 336
WIRE 1312 496 1312 208
WIRE 1472 496 1472 144
WIRE -1312 512 -1408 512
WIRE -1152 512 -1168 512
WIRE -208 512 -208 464
WIRE -1312 560 -1328 560
WIRE -1104 560 -1104 528
WIRE 656 592 656 560
WIRE 800 592 800 560
WIRE 976 592 976 560
WIRE 1136 592 1136 560
WIRE 1312 592 1312 560
WIRE 1472 592 1472 560
WIRE -1264 608 -1264 576
WIRE -608 640 -608 16
WIRE -496 640 -608 640
WIRE -448 640 -496 640
WIRE -336 640 -368 640
WIRE -320 640 -336 640
WIRE -208 640 -208 592
WIRE -208 640 -240 640
WIRE -1408 672 -1408 512
WIRE -1072 672 -1408 672
WIRE -848 672 -1072 672
WIRE -608 672 -608 640
WIRE -496 672 -496 640
WIRE -208 672 -208 640
WIRE -656 688 -784 688
WIRE -1408 704 -1408 672
WIRE -1072 720 -1072 672
WIRE -1008 720 -1072 720
WIRE -896 720 -928 720
WIRE -848 720 -896 720
WIRE -656 736 -672 736
WIRE -896 752 -896 720
WIRE -864 752 -896 752
WIRE -816 752 -816 736
WIRE -896 768 -896 752
WIRE -608 784 -608 752
WIRE -496 784 -496 752
WIRE -208 784 -208 752
WIRE -1408 816 -1408 784
WIRE -864 832 -864 752
WIRE -64 832 -64 464
WIRE -64 832 -864 832
WIRE -896 848 -896 832
WIRE -1472 880 -1472 -16
WIRE 224 880 224 576
WIRE 224 880 -1472 880
FLAG -848 96 0
FLAG -560 80 0
FLAG -464 272 0
FLAG -432 448 0
FLAG 1120 272 0
FLAG 80 480 0
FLAG 304 -576 0
FLAG 1424 -864 OUT
FLAG 1424 -752 0
FLAG 1344 96 0
FLAG 304 -464 0
FLAG 512 480 0
FLAG -352 400 0
FLAG -416 -352 0
FLAG -1088 -752 0
FLAG -752 208 0
FLAG 1072 -80 0
FLAG 1056 16 0
FLAG -400 -720 0
FLAG 1008 -736 0
FLAG 1472 592 0
FLAG 1312 592 0
FLAG 976 592 0
FLAG 1136 592 0
FLAG 800 592 0
FLAG 656 592 0
FLAG -1088 -864 IN
FLAG -1264 608 0
FLAG -1104 560 0
FLAG -896 848 0
FLAG -816 752 0
FLAG -672 736 0
FLAG -608 784 0
FLAG -960 400 0
FLAG -1168 512 0
FLAG -1328 560 0
FLAG -1408 816 0
FLAG -208 784 0
FLAG -336 640 OUT
FLAG -496 784 0
SYMBOL res -288 -592 R0
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL res 528 -688 R0
SYMATTR InstName R2
SYMATTR Value 1
SYMBOL res 864 -592 R0
SYMATTR InstName R3
SYMATTR Value 1
SYMBOL res 288 -704 R0
SYMATTR InstName R4
SYMATTR Value 2m
SYMBOL res 176 -608 R0
SYMATTR InstName R5
SYMATTR Value 10
SYMBOL res 384 -592 R0
SYMATTR InstName R6
SYMATTR Value 10
SYMBOL cap 288 -496 R90
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL cap 384 -496 R90
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL cap -48 -368 R90
SYMATTR InstName C3
SYMATTR Value 0.22
SYMBOL cap 720 -368 R90
SYMATTR InstName C4
SYMATTR Value 0.22
SYMBOL cap -480 64 R90
SYMATTR InstName C5
SYMATTR Value 4.7
SYMBOL res -864 -16 R0
SYMATTR InstName R7
SYMATTR Value 100K
SYMBOL res -336 256 R90
SYMATTR InstName R8
SYMATTR Value 365K
SYMBOL cap 1040 288 R270
SYMATTR Value 10n
SYMATTR SpiceLine Cpar=680p Rser=10K
SYMATTR InstName C6
SYMBOL cap -448 352 R0
SYMATTR InstName C7
SYMATTR Value 10n
SYMBOL cap -432 -240 R0
SYMATTR InstName C8
SYMATTR Value 47n
SYMBOL ind 240 -848 R270
SYMATTR InstName L1
SYMATTR Value 3.3
SYMATTR SpiceLine Rser=.47m Rpar=1K
SYMBOL diode 160 -432 R90
SYMATTR InstName D1
SYMATTR Value MURS120
SYMBOL diode 848 -368 R90
SYMATTR InstName D2
SYMATTR Value MURS120
SYMBOL res 1056 -592 R0
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL res 1088 -848 R270
SYMATTR InstName R10
SYMATTR Value 2m
SYMBOL res 1328 -32 R0
SYMATTR InstName R11
SYMATTR Value 12.1K
SYMBOL voltage -1088 -864 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -976 112 R0
SYMATTR InstName R12
SYMATTR Value 93.1K
SYMBOL res -976 272 R0
SYMATTR InstName R13
SYMATTR Value 12.1K
SYMBOL res 208 480 R0
SYMATTR InstName R14
SYMATTR Value 100K
SYMBOL voltage 1424 -864 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL nmos -352 -816 R270
SYMATTR InstName Q1
SYMATTR Value BSC016N04LS
SYMBOL nmos 80 -832 R0
SYMATTR Value BSC016N04LS
SYMATTR InstName Q2
SYMBOL nmos 960 -816 M270
SYMATTR InstName Q3
SYMATTR Value BSC016N04LS
SYMBOL nmos 528 -832 M0
SYMATTR InstName Q4
SYMATTR Value BSC016N04LS
SYMBOL res -480 -880 R90
SYMATTR InstName R15
SYMATTR Value 2m
SYMBOL res 48 -672 R0
SYMATTR InstName R16
SYMATTR Value 1
SYMBOL cap -432 -272 M180
SYMATTR InstName C9
SYMATTR Value 100n
SYMBOL res -640 -592 R0
SYMATTR InstName R17
SYMATTR Value 100
SYMBOL res -864 -176 R0
SYMATTR InstName R18
SYMATTR Value 665K
SYMBOL res -768 -32 R0
SYMATTR InstName R19
SYMATTR Value 127K
SYMBOL res -768 80 R0
SYMATTR InstName R20
SYMATTR Value 54.9K
SYMBOL res 1328 -208 R0
SYMATTR InstName R21
SYMATTR Value 133K
SYMBOL cap 1056 -176 M180
SYMATTR InstName C10
SYMATTR Value 47n
SYMBOL cap 1056 -96 M180
SYMATTR InstName C11
SYMATTR Value 100n
SYMBOL res -1120 288 R0
SYMATTR InstName R22
SYMATTR Value 27.4K
SYMBOL Digital\\xor -800 640 R0
SYMATTR Value Trise=10n
SYMATTR InstName A1
SYMBOL sw -1104 544 M180
SYMATTR Value SW1
SYMATTR InstName S1
SYMBOL sw -1264 592 M180
SYMATTR Value SW1
SYMATTR InstName S2
SYMBOL res -1280 272 R0
SYMATTR InstName R23
SYMATTR Value 100K
SYMBOL voltage -1408 688 R0
SYMATTR InstName V3
SYMATTR Value PWL 0 0 +10u 3.3 2.5m 3.3 +10u 0
SYMBOL res -1024 736 R270
SYMATTR InstName R24
SYMATTR Value 68.1K
SYMBOL cap -880 768 M0
SYMATTR InstName C12
SYMATTR Value 220p
SYMBOL sw -608 768 M180
SYMATTR Value SW1
SYMATTR InstName S3
SYMBOL cap 1040 0 R90
SYMATTR InstName C13
SYMATTR Value 4.7
SYMBOL cap -416 -816 R0
SYMATTR InstName C14
SYMATTR Value 10
SYMBOL cap 992 -832 R0
SYMATTR InstName C15
SYMATTR Value 10
SYMBOL cap 1456 496 R0
SYMATTR Value 4.7n
SYMATTR Value2 Rpar=17.4K
SYMATTR InstName C16
SYMBOL cap 1296 496 R0
SYMATTR Value 4.7n
SYMATTR Value2 Rpar=17.4K
SYMATTR InstName C17
SYMBOL cap 960 496 R0
SYMATTR Value 22n
SYMATTR Value2 Rpar=23.7K
SYMATTR InstName C18
SYMBOL cap 1120 496 R0
SYMATTR Value 4.7n
SYMATTR Value2 Rpar=17.4K
SYMATTR InstName C19
SYMBOL cap 784 496 R0
SYMATTR Value 4.7n
SYMATTR Value2 Rpar=17.4K
SYMATTR InstName C20
SYMBOL cap 640 496 R0
SYMATTR Value 22n
SYMATTR Value2 Rpar=23.7K
SYMATTR InstName C21
SYMBOL res -224 656 R0
SYMATTR InstName R25
SYMATTR Value 20K
SYMBOL res -336 656 R270
SYMATTR InstName R26
SYMATTR Value 154K
SYMBOL res -224 496 R0
SYMATTR InstName R27
SYMATTR Value 100K
SYMBOL res -352 624 R90
SYMATTR InstName R28
SYMATTR Value 681K
SYMBOL res -512 656 R0
SYMATTR InstName R29
SYMATTR Value 100K
SYMBOL LT8708 304 80 R0
SYMATTR InstName U1