* SPICE netlist
XU1 N018 N004 N024 N027 N033 N031 0 OUT N019 OUT N028 N012 N029 0 N015 N011 N010 N006 N003 IN NC_01 NC_02 N009 0 0 LTC3866 ;pnba FREQ)Run)TK/SS)Ith)FB)DIFFOut)DIFFN)DIFFP)SNSD+)SNS-)SNSA+)ILim)CLKOUT)PGND)BG)SW)TG)Boost)INTVcc)Vin)ExtVcc)ITemp)Pgood)Mode/PLLIn)SGND
V1 IN 0 12
C1 0 N003 4.7
R1 N018 0 100K
C2 N027 0 1500p Rser=10K Cpar=220p
C3 N024 0 .002
D1 N003 N006 CMDSH2-3
C4 N006 N011 .1
M1 IN N010 N011 N011 BSC050NE2LS
M2 N011 N015 0 0 BSC010NE2LS
L1 N011 OUT .33 Rser=.32m
C5 OUT 0 100 x6 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
R2 N011 N019 4.64K
R3 N011 N028 931
C6 N019 OUT 220n
C7 OUT N028 220n
R4 N031 N033 30.1K
R5 N033 0 20K
Rload1 OUT 0 16.7m
C8 OUT 0 330 x6 V=6.3 Irms=2.2 Rser=0.025 Lser=0 mfg="KEMET" pn="T520V337M006ASE025" type="Tantalum"
R6 N003 N009 120K
R7 N003 N012 30.1K
R8 N012 0 10K
R9 N003 N005 1K
Q1 N005 N029 0 0 2N3904
XU2 N009 N026 OUT N004 N004 OUT N025 N009 N027 N032 0 N005 N002 N021 MP_03 N001 MP_04 NC_05 N001 IN MP_06 N001 MP_07 N022 N030 N030 N001 N027 0 LTC3874-1 ;pnba Mode0)Isense0+)Isense0-)Run0)Run1)Isense1-)Isense1+)Mode1)Ith1)Freq)Ilim)SYNC)PhasMD)PWM1))Vcc1))ExtVcc)IntVcc)Vin))Vcc0))PWM0)_Fault1)_Fault0)LowDCR)Ith0)GND
XU3 MP_08 MP_09 N014 N017 N023 0 N022 N001 N001 N008 LTC4449 ;pnba ))TG)TS)BG)GND)IN)Vlogic)Vcc)Boost
XU4 MP_10 MP_11 N013 N016 N020 0 N021 N001 N001 N007 LTC4449 ;pnba ))TG)TS)BG)GND)IN)Vlogic)Vcc)Boost
M3 IN N014 N017 N017 BSC050NE2LS
M4 N017 N023 0 0 BSC010NE2LS
M5 IN N013 N016 N016 BSC050NE2LS
M6 N016 N020 0 0 BSC010NE2LS
R10 N032 0 75K
L2 N017 OUT .33 Rser=.32m
R11 N017 N026 931
C9 N026 OUT 220n
C10 N001 0 4.7
R12 N016 N025 931
C11 N025 OUT 220n
L3 N016 OUT .33 Rser=.32m
C12 N008 N017 .1
D2 N001 N008 CMDSH2-3
R13 N030 N001 120K
M7 N030 N024 N009 N009 2N7002
R14 N001 N002 20K
R15 N002 0 10K
C13 N007 N016 .1
D3 N001 N007 CMDSH2-3
.tran 1.5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 3424 1312
WIRE 784 -640 784 -656
WIRE -592 -592 -688 -592
WIRE -496 -592 -512 -592
WIRE -480 -592 -496 -592
WIRE -384 -592 -400 -592
WIRE 496 -560 368 -560
WIRE 528 -560 496 -560
WIRE 784 -560 784 -576
WIRE 784 -560 528 -560
WIRE 1024 -560 784 -560
WIRE -1552 -544 -1632 -544
WIRE -880 -544 -1552 -544
WIRE 128 -544 -880 -544
WIRE 688 -544 128 -544
WIRE 1168 -544 688 -544
WIRE -1632 -528 -1632 -544
WIRE 688 -528 688 -544
WIRE 784 -528 784 -560
WIRE 1024 -528 1024 -560
WIRE -416 -512 -960 -512
WIRE 592 -512 -416 -512
WIRE 368 -496 368 -560
WIRE 288 -464 -592 -464
WIRE 528 -464 528 -560
WIRE 592 -464 592 -512
WIRE 608 -464 592 -464
WIRE 1024 -464 960 -464
WIRE 1024 -448 1024 -464
WIRE 1168 -448 1168 -544
WIRE -1632 -432 -1632 -448
WIRE -1200 -416 -1376 -416
WIRE -1152 -416 -1200 -416
WIRE -1040 -416 -1088 -416
WIRE -784 -416 -1040 -416
WIRE -688 -416 -688 -592
WIRE -688 -416 -784 -416
WIRE -352 -416 -688 -416
WIRE -272 -416 -352 -416
WIRE -176 -416 -208 -416
WIRE -16 -416 -176 -416
WIRE 288 -400 288 -464
WIRE 368 -400 368 -416
WIRE 368 -400 288 -400
WIRE -880 -368 -880 -544
WIRE -784 -368 -784 -416
WIRE -592 -368 -592 -464
WIRE -496 -368 -496 -592
WIRE 336 -368 -400 -368
WIRE 528 -368 528 -384
WIRE 528 -368 336 -368
WIRE 608 -368 528 -368
WIRE 1120 -368 960 -368
WIRE 496 -352 496 -560
WIRE -1376 -320 -1376 -416
WIRE -16 -320 -16 -416
WIRE -960 -304 -960 -512
WIRE -944 -304 -960 -304
WIRE -416 -304 -416 -512
WIRE -416 -304 -432 -304
WIRE -1552 -272 -1552 -544
WIRE 128 -272 128 -544
WIRE 608 -272 592 -272
WIRE 1024 -272 1024 -384
WIRE 1024 -272 960 -272
WIRE 1168 -272 1168 -352
WIRE 1168 -272 1024 -272
WIRE 1328 -272 1168 -272
WIRE 1344 -272 1328 -272
WIRE 1440 -272 1424 -272
WIRE 1488 -272 1440 -272
WIRE 1600 -272 1488 -272
WIRE 1712 -272 1600 -272
WIRE -1200 -256 -1200 -416
WIRE -176 -256 -176 -416
WIRE 1168 -256 1168 -272
WIRE 496 -240 496 -272
WIRE 592 -240 496 -240
WIRE 1488 -240 1488 -272
WIRE 1600 -240 1600 -272
WIRE 1712 -240 1712 -272
WIRE 496 -224 496 -240
WIRE -944 -208 -960 -208
WIRE -400 -208 -400 -368
WIRE -400 -208 -432 -208
WIRE -1328 -192 -1504 -192
WIRE -1040 -192 -1040 -416
WIRE -1040 -192 -1072 -192
WIRE -960 -192 -960 -208
WIRE -400 -192 -400 -208
WIRE -400 -192 -960 -192
WIRE -352 -192 -352 -416
WIRE -304 -192 -352 -192
WIRE 80 -192 -48 -192
WIRE 592 -176 592 -240
WIRE 608 -176 592 -176
WIRE 1120 -176 960 -176
WIRE 1168 -144 1168 -160
WIRE 1488 -144 1488 -176
WIRE 1600 -144 1600 -176
WIRE 1712 -144 1712 -160
WIRE 496 -128 496 -144
WIRE -1696 -112 -1712 -112
WIRE -1584 -112 -1616 -112
WIRE -1552 -112 -1552 -176
WIRE -1552 -112 -1584 -112
WIRE -1376 -112 -1376 -256
WIRE -1376 -112 -1552 -112
WIRE -1328 -112 -1376 -112
WIRE -1040 -112 -1040 -192
WIRE -1040 -112 -1072 -112
WIRE -944 -112 -1040 -112
WIRE -352 -112 -352 -192
WIRE -352 -112 -432 -112
WIRE -304 -112 -352 -112
WIRE -16 -112 -16 -256
WIRE -16 -112 -48 -112
WIRE 128 -112 128 -176
WIRE 128 -112 -16 -112
WIRE 192 -112 128 -112
WIRE 208 -112 192 -112
WIRE 304 -112 288 -112
WIRE -1552 -96 -1552 -112
WIRE 128 -96 128 -112
WIRE 512 -80 496 -80
WIRE 608 -80 592 -80
WIRE 992 -80 960 -80
WIRE 1152 -80 992 -80
WIRE 1328 -80 1328 -272
WIRE 1328 -80 1232 -80
WIRE 992 -64 992 -80
WIRE -1328 -32 -1408 -32
WIRE -992 -32 -1072 -32
WIRE -304 -32 -352 -32
WIRE -32 -32 -48 -32
WIRE -1408 -16 -1408 -32
WIRE -1408 -16 -1504 -16
WIRE -992 -16 -992 -32
WIRE -944 -16 -992 -16
WIRE -352 -16 -352 -32
WIRE -352 -16 -432 -16
WIRE -32 -16 -32 -32
WIRE 80 -16 -32 -16
WIRE -1552 16 -1552 0
WIRE 496 16 480 16
WIRE 576 16 560 16
WIRE 608 16 576 16
WIRE 992 16 992 0
WIRE 992 16 960 16
WIRE 1440 16 1440 -272
WIRE 1440 16 992 16
WIRE 128 32 128 0
WIRE 992 32 992 16
WIRE -1200 48 -1200 32
WIRE -176 48 -176 32
WIRE -1584 80 -1584 -112
WIRE -1392 80 -1584 80
WIRE -1008 80 -1312 80
WIRE -944 80 -1008 80
WIRE -400 80 -432 80
WIRE -48 80 -400 80
WIRE 192 80 192 -112
WIRE 192 80 32 80
WIRE -1008 96 -1008 80
WIRE -400 96 -400 80
WIRE 464 112 448 112
WIRE 592 112 528 112
WIRE 608 112 592 112
WIRE 992 112 992 96
WIRE 992 112 960 112
WIRE 1152 112 992 112
WIRE 1328 112 1328 -80
WIRE 1328 112 1232 112
WIRE -1712 176 -1712 -112
WIRE -1008 176 -1008 160
WIRE -1008 176 -1712 176
WIRE -944 176 -1008 176
WIRE -400 176 -400 160
WIRE -400 176 -432 176
WIRE 304 176 304 -112
WIRE 304 176 -400 176
WIRE 1440 208 1440 16
WIRE 1440 208 960 208
WIRE 576 224 576 16
WIRE 576 224 -272 224
WIRE 592 240 592 112
WIRE 592 240 -416 240
WIRE 368 256 368 -400
WIRE -944 272 -960 272
WIRE -416 272 -416 240
WIRE -416 272 -432 272
WIRE -960 288 -960 272
WIRE -416 288 -416 272
WIRE -416 288 -960 288
WIRE 608 304 432 304
WIRE 976 304 960 304
WIRE -272 320 -272 224
WIRE -960 368 -1152 368
WIRE -944 368 -960 368
WIRE -416 368 -432 368
WIRE -352 368 -416 368
WIRE 336 368 336 -368
WIRE 336 368 -256 368
WIRE -1152 384 -1152 368
WIRE 368 384 368 352
WIRE 608 400 592 400
WIRE 1008 400 960 400
WIRE 1008 416 1008 400
WIRE -736 448 -736 432
WIRE -640 448 -640 432
WIRE -544 448 -544 432
WIRE -1152 480 -1152 464
WIRE -1040 480 -1040 -112
WIRE -1040 480 -1152 480
WIRE -832 480 -832 432
WIRE -832 480 -1040 480
WIRE 720 480 720 464
WIRE 848 512 848 464
WIRE 1008 512 1008 496
WIRE 1008 512 848 512
WIRE 1008 528 1008 512
WIRE -736 544 -736 528
WIRE -960 576 -960 368
WIRE -416 576 -416 368
WIRE -416 576 -960 576
WIRE 1008 624 1008 608
WIRE -1712 656 -1712 176
WIRE 304 656 304 176
WIRE 304 656 -1712 656
WIRE 1440 656 1440 208
WIRE 1440 656 304 656
FLAG 720 480 0
FLAG 784 -656 0
FLAG -1632 -432 0
FLAG 496 -80 0
FLAG 448 112 0
FLAG 480 16 0
FLAG 592 400 0
FLAG 1168 -144 0
FLAG 1488 -144 0
FLAG 1008 624 0
FLAG 1712 -144 0
FLAG -1632 -544 IN
FLAG 592 -272 0
FLAG 976 304 0
FLAG 1600 -144 0
FLAG 496 -128 0
FLAG 368 384 0
FLAG 128 32 0
FLAG -1552 16 0
FLAG -736 544 0
FLAG -640 448 0
FLAG -544 448 0
FLAG -176 48 0
FLAG -784 -480 0
FLAG -1200 48 0
FLAG -384 -592 0
FLAG 1712 -272 OUT
SYMBOL PowerProducts\\LTC3866 784 -32 R0
SYMATTR InstName U1
SYMBOL voltage -1632 -544 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 768 -640 R0
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL res 608 -96 R90
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL cap 528 96 R90
SYMATTR InstName C2
SYMATTR Value 1500p
SYMATTR SpiceLine Rser=10K
SYMATTR SpiceLine2 Cpar=220p
SYMBOL cap 560 0 R90
SYMATTR InstName C3
SYMATTR Value .002
SYMBOL schottky 1008 -528 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1008 -448 R0
SYMATTR InstName C4
SYMATTR Value .1
SYMBOL nmos 1120 -448 R0
SYMATTR InstName M1
SYMATTR Value BSC050NE2LS
SYMBOL nmos 1120 -256 R0
SYMATTR InstName M2
SYMATTR Value BSC010NE2LS
SYMBOL ind 1328 -256 R270
SYMATTR InstName L1
SYMATTR Value .33
SYMATTR SpiceLine Rser=.32m
SYMBOL cap 1472 -240 R0
SYMATTR Value2 x6
SYMATTR Value 100
SYMATTR InstName C5
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res 1248 -96 R90
SYMATTR InstName R2
SYMATTR Value 4.64K
SYMBOL res 1248 96 R90
SYMATTR InstName R3
SYMATTR Value 931
SYMBOL cap 976 -64 R0
SYMATTR InstName C6
SYMATTR Value 220n
SYMBOL cap 976 32 R0
SYMATTR InstName C7
SYMATTR Value 220n
SYMBOL res 992 400 R0
SYMATTR InstName R4
SYMATTR Value 30.1K
SYMBOL res 992 512 R0
SYMATTR InstName R5
SYMATTR Value 20K
SYMBOL res 1696 -256 R0
SYMATTR InstName Rload1
SYMATTR Value 16.7m
SYMBOL polcap 1584 -240 R0
SYMATTR Value 330
SYMATTR Value2 x6
SYMATTR InstName C8
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=2.2 Rser=0.025 Lser=0 mfg="KEMET" pn="T520V337M006ASE025" type="Tantalum"
SYMBOL res 512 -480 R0
SYMATTR InstName R6
SYMATTR Value 120K
SYMBOL res 480 -368 R0
SYMATTR InstName R7
SYMATTR Value 30.1K
SYMBOL res 480 -240 R0
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL res 352 -512 R0
SYMATTR InstName R9
SYMATTR Value 1K
SYMBOL npn 432 256 M0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL PowerProducts\\LTC3874-1 -688 32 R0
SYMATTR InstName U2
SYMBOL PowerProducts\\LTC4449 -176 -112 R0
SYMATTR InstName U3
SYMBOL PowerProducts\\LTC4449 -1200 -112 M0
SYMATTR InstName U4
SYMBOL nmos 80 -272 R0
SYMATTR InstName M3
SYMATTR Value BSC050NE2LS
SYMBOL nmos 80 -96 R0
SYMATTR InstName M4
SYMATTR Value BSC010NE2LS
SYMBOL nmos -1504 -272 M0
SYMATTR InstName M5
SYMATTR Value BSC050NE2LS
SYMBOL nmos -1504 -96 M0
SYMATTR InstName M6
SYMATTR Value BSC010NE2LS
SYMBOL res -752 432 R0
SYMATTR InstName R10
SYMATTR Value 75K
SYMBOL ind 192 -96 R270
SYMATTR InstName L2
SYMATTR Value .33
SYMATTR SpiceLine Rser=.32m
SYMBOL res 48 64 R90
SYMATTR InstName R11
SYMATTR Value 931
SYMBOL cap -416 96 R0
SYMATTR InstName C9
SYMATTR Value 220n
SYMBOL cap -800 -416 M180
SYMATTR InstName C10
SYMATTR Value 4.7
SYMBOL res -1408 64 M90
SYMATTR InstName R12
SYMATTR Value 931
SYMBOL cap -1024 96 R0
SYMATTR InstName C11
SYMATTR Value 220n
SYMBOL ind -1600 -96 M270
SYMATTR InstName L3
SYMATTR Value .33
SYMATTR SpiceLine Rser=.32m
SYMBOL cap -32 -320 R0
SYMATTR InstName C12
SYMATTR Value .1
SYMBOL schottky -272 -400 R270
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res -1168 368 R0
SYMATTR InstName R13
SYMATTR Value 120K
SYMBOL nmos -352 320 M90
SYMATTR InstName M7
SYMATTR Value 2N7002
SYMBOL res -608 -608 M90
SYMATTR InstName R14
SYMATTR Value 20K
SYMBOL res -496 -608 M90
SYMATTR InstName R15
SYMATTR Value 10K
SYMBOL cap -1392 -320 R0
SYMATTR InstName C13
SYMATTR Value .1
SYMBOL schottky -1088 -400 M270
SYMATTR InstName D3
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode