* SPICE netlist
MQ1 IN N004 N007 N007 FDS6680A
C1 N006 N007 .47
MQ2 N007 N012 0 0 FDS6680A
D1 N001 N006 1N5818
L1 N007 N008 1
R1 N008 OUT 2m
D2 0 N007 1N5818
MQ3 IN N017 N020 N020 FDS6680A
C2 N019 N020 .47
MQ4 N020 N022 0 0 FDS6680A
L2 N020 N021 1
D3 0 N020 1N5818
C3 OUT 0 1000 x2 Rser=10m
C4 N014 N013 1000p
R2 N013 0 10K
C5 N011 0 250p
D4 N001 N019 1N5818
V1 IN 0 6
R3 N021 OUT 2m
R4 N009 0 10K
C6 N010 N009 .01
C7 N001 0 1
V2 N005 0 SINE(.5 .5 200K)
XU1 N011 N008 OUT N015 N010 N005 N016 N014 0 N018 0 OUT OUT N021 N015 N018 0 0 0 0 0 N001 0 N017 N020 N019 N022 0 N001 N002 N012 IN N006 N007 N004 N003 LTC3716 ;pnba Run/SS)Sense1+)Sense1-)EAIN)PLLFLT)PLLIN)FCB)Ith)SGND)DiffOut)OS-)OS+)Sense2-)Sense2+)AttenOut)AttenIn)VID0)VID1)VID2)VID3)VID4)Vbias)AmpMode)TG2)SW2)Boost2)BG2)PGND)INTVcc)EXTVcc)BG1)Vin)Boost1)SW1)TG1)PGOOD
R5 IN N003 10K
Rload OUT 0 .5
.tran 1m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1904 1152
WIRE -600 -576 -696 -576
WIRE -424 -576 -600 -576
WIRE 408 -576 -424 -576
WIRE 488 -576 408 -576
WIRE -696 -560 -696 -576
WIRE -40 -560 -168 -560
WIRE 72 -560 -40 -560
WIRE 152 -560 72 -560
WIRE 264 -560 152 -560
WIRE -600 -544 -600 -576
WIRE 72 -528 72 -560
WIRE 152 -528 152 -560
WIRE 264 -528 264 -560
WIRE 488 -480 488 -576
WIRE -696 -464 -696 -480
WIRE -424 -464 -424 -576
WIRE -296 -464 -296 -496
WIRE -168 -464 -168 -560
WIRE -40 -464 -40 -560
WIRE 72 -448 72 -464
WIRE -600 -400 -600 -464
WIRE -504 -400 -600 -400
WIRE 440 -400 40 -400
WIRE -920 -336 -952 -336
WIRE -504 -336 -840 -336
WIRE 152 -336 152 -464
WIRE 152 -336 40 -336
WIRE 488 -336 488 -384
WIRE 488 -336 344 -336
WIRE 568 -336 488 -336
WIRE 632 -336 568 -336
WIRE 728 -336 712 -336
WIRE 744 -336 728 -336
WIRE 840 -336 824 -336
WIRE 904 -336 840 -336
WIRE 952 -336 904 -336
WIRE 568 -320 568 -336
WIRE 952 -320 952 -336
WIRE 488 -288 488 -336
WIRE -728 -272 -760 -272
WIRE -600 -272 -648 -272
WIRE -504 -272 -536 -272
WIRE 152 -272 40 -272
WIRE 344 -272 344 -336
WIRE 344 -272 152 -272
WIRE 568 -240 568 -256
WIRE 952 -224 952 -240
WIRE -664 -208 -760 -208
WIRE -504 -208 -600 -208
WIRE 440 -208 40 -208
WIRE 488 -176 488 -192
WIRE -744 -144 -760 -144
WIRE -600 -144 -664 -144
WIRE -504 -144 -536 -144
WIRE 728 -144 728 -336
WIRE 728 -144 40 -144
WIRE -504 -80 -536 -80
WIRE 840 -80 840 -336
WIRE 840 -80 40 -80
WIRE 408 -32 408 -576
WIRE -504 -16 -536 -16
WIRE 72 -16 40 -16
WIRE -536 48 -536 -16
WIRE -504 48 -536 48
WIRE 360 48 40 48
WIRE -504 112 -536 112
WIRE 264 112 264 -464
WIRE 264 112 40 112
WIRE 408 112 408 64
WIRE 408 112 344 112
WIRE 488 112 408 112
WIRE 568 112 488 112
WIRE 664 112 648 112
WIRE 680 112 664 112
WIRE 776 112 760 112
WIRE 904 112 904 -336
WIRE 904 112 776 112
WIRE 488 128 488 112
WIRE 904 144 904 112
WIRE 904 144 840 144
WIRE 408 160 408 112
WIRE 904 160 904 144
WIRE -536 176 -536 112
WIRE -504 176 -536 176
WIRE 264 176 40 176
WIRE 344 176 344 112
WIRE 344 176 264 176
WIRE 488 208 488 192
WIRE -504 240 -536 240
WIRE 360 240 40 240
WIRE 904 240 904 224
WIRE 904 240 872 240
WIRE 408 272 408 256
WIRE 904 272 904 240
WIRE -504 304 -536 304
WIRE 664 304 664 112
WIRE 664 304 40 304
WIRE -504 368 -536 368
WIRE 776 368 776 112
WIRE 776 368 40 368
WIRE -504 432 -536 432
WIRE 840 432 840 144
WIRE 840 432 40 432
WIRE -504 496 -536 496
WIRE 872 496 872 240
WIRE 872 496 40 496
WIRE -344 576 -344 560
WIRE -120 576 -120 560
FLAG 488 -176 0
FLAG 568 -240 0
FLAG 408 272 0
FLAG 488 208 0
FLAG -120 576 0
FLAG -344 576 0
FLAG 904 272 0
FLAG -760 -144 0
FLAG -760 -208 0
FLAG -696 -464 0
FLAG 952 -224 0
FLAG -952 -336 0
FLAG -760 -272 0
FLAG 72 -448 0
FLAG -536 -80 0
FLAG -536 496 0
FLAG 952 -336 OUT
FLAG -536 432 0
FLAG -536 368 0
FLAG -536 304 0
FLAG -536 240 0
FLAG -696 -576 IN
SYMBOL NMOS 440 -480 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL polcap 136 -336 R0
SYMATTR Value .47
SYMATTR InstName C1
SYMBOL nmos 440 -288 R0
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL schottky 136 -528 R0
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL ind 616 -320 R270
SYMATTR InstName L1
SYMATTR Value 1
SYMBOL RES 728 -352 M90
SYMATTR InstName R1
SYMATTR Value 2m
SYMBOL schottky 552 -256 M180
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL nmos 360 -32 R0
SYMATTR InstName Q3
SYMATTR Value FDS6680A
SYMBOL polcap 248 112 R0
SYMATTR Value .47
SYMATTR InstName C2
SYMBOL nmos 360 160 R0
SYMATTR InstName Q4
SYMATTR Value FDS6680A
SYMBOL ind 552 128 R270
SYMATTR InstName L2
SYMATTR Value 1
SYMBOL schottky 472 192 M180
SYMATTR InstName D3
SYMATTR Value 1N5818
SYMBOL polcap 888 160 R0
SYMATTR Value2 x2
SYMATTR SpiceLine Rser=10m
SYMATTR InstName C3
SYMATTR Value 1000
SYMBOL cap -536 -160 R90
SYMATTR InstName C4
SYMATTR Value 1000p
SYMBOL res -648 -160 R90
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap -600 -224 R90
SYMATTR InstName C5
SYMATTR Value 250p
SYMBOL schottky 248 -528 R0
SYMATTR InstName D4
SYMATTR Value 1N5818
SYMBOL VOLTAGE -696 -576 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL RES 664 96 M90
SYMATTR InstName R3
SYMATTR Value 2m
SYMBOL res -632 -288 R90
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL cap -536 -288 R90
SYMATTR InstName C6
SYMATTR Value .01
SYMBOL polcap 56 -528 R0
SYMATTR InstName C7
SYMATTR Value 1
SYMBOL voltage -824 -336 R90
SYMATTR Value SINE(.5 .5 200K)
SYMATTR InstName V2
SYMBOL POWERPRODUCTS\\LTC3716 -232 48 R0
SYMATTR InstName U1
SYMBOL RES -616 -560 R0
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL res 936 -336 R0
SYMATTR InstName Rload
SYMATTR Value .5