* SPICE netlist
MQ1 IN N003 N005 N005 FDS6680A
MQ2 N005 N011 0 0 FDS6680A
C1 N006 N005 .1
D1 N001 N006 1N5817
C2 N001 0 1
D2 0 N005 1N5817
L1 N005 N009 6.3 Rpar=10000
C3 N009 OUT1 1000p
R1 N013 0 20K
R2 N013 OUT1 105K
C4 OUT1 0 47 Rser=15m
C5 N016 N015 220p
C6 N019 0 .002
R3 N015 0 15K
V1 IN 0 7
MQ3 IN N004 N008 N008 FDS6680A
MQ4 N008 N012 0 0 FDS6680A
C7 N007 N008 .1
D3 N001 N007 1N5817
D4 0 N008 1N5817
R4 N010 OUT2 .01
C8 N010 OUT2 1000p
R5 N014 0 20K
R6 N014 OUT2 63.4K
C9 OUT2 0 47 Rser=15m
C10 N017 N018 220p
C11 N020 0 .002
R7 N018 0 15K
L2 N008 N010 6.3 Rpar=10000
R8 N009 OUT1 .01
R9 IN N022 10K
XU1 N019 N009 OUT1 N013 N023 N025 N001 N016 0 N021 N017 N014 OUT2 N010 N020 N004 N008 N007 N012 0 N001 N002 N011 IN N006 N005 N003 N022 LTC1628-SYNC ;pnba Run/SS1)Sense1+)Sense1-)Vosense1)PLLFLTR)PLLIN)FCB)Ith1)SGND)3.3Vout)Ith2)Vosense2)Sense2-)Sense2+)Run/SS2)TG2)SW2)Boost2)BG2)PGND)INTVcc)EXTVcc)BG1)Vin)Boost1)SW1)TG1)Pgood
V2 N025 0 SIN(1 1 160K)
R10 N023 N024 10K
C12 N024 0 500p
Rload1 OUT1 0 10
Rload2 OUT2 0 5
.tran 3.5m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1984 1360
WIRE -752 -680 -976 -680
WIRE -480 -680 -752 -680
WIRE -16 -680 -480 -680
WIRE 560 -680 -16 -680
WIRE -752 -664 -752 -680
WIRE -208 -648 -336 -648
WIRE -128 -648 -208 -648
WIRE 128 -648 -128 -648
WIRE 400 -648 128 -648
WIRE -208 -632 -208 -648
WIRE -336 -600 -336 -648
WIRE 400 -600 400 -648
WIRE -480 -584 -480 -680
WIRE -16 -584 -16 -680
WIRE 128 -584 128 -648
WIRE 272 -584 272 -600
WIRE 560 -584 560 -680
WIRE -752 -568 -752 -584
WIRE -208 -552 -208 -568
WIRE -96 -504 -432 -504
WIRE 512 -504 352 -504
WIRE -976 -424 -976 -680
WIRE -480 -408 -480 -488
WIRE -432 -408 -480 -408
WIRE -336 -408 -336 -536
WIRE -336 -408 -368 -408
WIRE -96 -408 -336 -408
WIRE 400 -408 400 -536
WIRE 400 -408 352 -408
WIRE 448 -408 400 -408
WIRE 560 -408 560 -488
WIRE 560 -408 512 -408
WIRE -768 -312 -800 -312
WIRE -640 -312 -688 -312
WIRE -480 -312 -480 -408
WIRE -480 -312 -640 -312
WIRE -96 -312 -480 -312
WIRE 560 -312 560 -408
WIRE 560 -312 352 -312
WIRE 720 -312 560 -312
WIRE 768 -312 720 -312
WIRE 896 -312 848 -312
WIRE -480 -296 -480 -312
WIRE 560 -296 560 -312
WIRE -640 -280 -640 -312
WIRE 720 -280 720 -312
WIRE -96 -216 -432 -216
WIRE 512 -216 352 -216
WIRE 560 -184 560 -200
WIRE 720 -184 720 -216
WIRE -640 -168 -640 -216
WIRE -480 -168 -480 -200
WIRE -800 -120 -800 -312
WIRE -352 -120 -800 -120
WIRE -96 -120 -352 -120
WIRE 464 -120 352 -120
WIRE 896 -120 896 -312
WIRE 896 -120 464 -120
WIRE -352 -104 -352 -120
WIRE 464 -104 464 -120
WIRE -800 -24 -800 -40
WIRE -352 -24 -352 -40
WIRE -352 -24 -800 -24
WIRE -96 -24 -352 -24
WIRE 464 -24 464 -40
WIRE 464 -24 352 -24
WIRE 896 -24 896 -40
WIRE 896 -24 464 -24
WIRE -800 72 -800 -24
WIRE -800 72 -928 72
WIRE -672 72 -800 72
WIRE -512 72 -592 72
WIRE -96 72 -512 72
WIRE 640 72 352 72
WIRE 752 72 640 72
WIRE 896 72 896 -24
WIRE 896 72 832 72
WIRE 992 72 896 72
WIRE -928 88 -928 72
WIRE -800 88 -800 72
WIRE -512 88 -512 72
WIRE 640 88 640 72
WIRE 896 88 896 72
WIRE 992 88 992 72
WIRE -304 168 -336 168
WIRE -208 168 -224 168
WIRE -96 168 -144 168
WIRE 368 168 352 168
WIRE 464 168 432 168
WIRE 576 168 544 168
WIRE -928 184 -928 168
WIRE -800 184 -800 152
WIRE -512 184 -512 168
WIRE 640 184 640 168
WIRE 896 184 896 152
WIRE 992 184 992 168
WIRE -240 264 -336 264
WIRE -96 264 -176 264
WIRE 416 264 352 264
WIRE 576 264 480 264
WIRE -128 360 -128 -648
WIRE -96 360 -128 360
WIRE 384 360 352 360
WIRE -976 472 -976 -344
WIRE -96 472 -976 472
WIRE 384 472 352 472
WIRE 480 472 464 472
WIRE 560 472 544 472
WIRE 128 584 128 552
WIRE -16 600 -16 552
WIRE 272 600 272 552
WIRE 128 680 128 664
FLAG 128 680 0
FLAG 272 600 0
FLAG -208 -552 0
FLAG -480 -168 0
FLAG -640 -168 0
FLAG -336 264 0
FLAG -336 168 0
FLAG -800 184 0
FLAG -512 184 0
FLAG -928 72 OUT1
FLAG -752 -568 0
FLAG 560 -184 0
FLAG 720 -184 0
FLAG 576 264 0
FLAG 576 168 0
FLAG 896 184 0
FLAG 640 184 0
FLAG 992 72 OUT2
FLAG -928 184 0
FLAG 992 184 0
FLAG -16 600 0
FLAG 560 472 0
FLAG -752 -680 IN
SYMBOL NMOS -432 -584 M0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL nmos -432 -296 M0
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL cap -368 -424 R90
SYMATTR InstName C1
SYMATTR Value .1
SYMBOL schottky -352 -600 R0
SYMATTR InstName D1
SYMATTR Value 1N5817
SYMBOL cap -224 -632 R0
SYMATTR InstName C2
SYMATTR Value 1
SYMBOL schottky -656 -216 M180
SYMATTR InstName D2
SYMATTR Value 1N5817
SYMBOL ind -672 -296 M270
SYMATTR InstName L1
SYMATTR Value 6.3
SYMATTR SpiceLine Rpar=10000
SYMBOL cap -368 -104 R0
SYMATTR InstName C3
SYMATTR Value 1000p
SYMBOL res -528 72 R0
SYMATTR InstName R1
SYMATTR Value 20K
SYMBOL res -576 56 R90
SYMATTR InstName R2
SYMATTR Value 105K
SYMBOL cap -816 88 R0
SYMATTR InstName C4
SYMATTR Value 47
SYMATTR SpiceLine Rser=15m
SYMBOL cap -144 152 R90
SYMATTR InstName C5
SYMATTR Value 220p
SYMBOL cap -176 248 R90
SYMATTR InstName C6
SYMATTR Value .002
SYMBOL res -208 152 R90
SYMATTR InstName R3
SYMATTR Value 15K
SYMBOL VOLTAGE -752 -680 R0
SYMATTR InstName V1
SYMATTR Value 7
SYMBOL nmos 512 -584 R0
SYMATTR InstName Q3
SYMATTR Value FDS6680A
SYMBOL nmos 512 -296 R0
SYMATTR InstName Q4
SYMATTR Value FDS6680A
SYMBOL cap 448 -424 M90
SYMATTR InstName C7
SYMATTR Value .1
SYMBOL schottky 384 -600 R0
SYMATTR InstName D3
SYMATTR Value 1N5817
SYMBOL schottky 704 -216 M180
SYMATTR InstName D4
SYMATTR Value 1N5817
SYMBOL res 880 -136 R0
SYMATTR InstName R4
SYMATTR Value .01
SYMBOL cap 448 -104 R0
SYMATTR InstName C8
SYMATTR Value 1000p
SYMBOL res 624 72 R0
SYMATTR InstName R5
SYMATTR Value 20K
SYMBOL res 736 56 M90
SYMATTR InstName R6
SYMATTR Value 63.4K
SYMBOL cap 880 88 R0
SYMATTR InstName C9
SYMATTR Value 47
SYMATTR SpiceLine Rser=15m
SYMBOL cap 368 184 R270
SYMATTR InstName C10
SYMATTR Value 220p
SYMBOL cap 416 280 R270
SYMATTR InstName C11
SYMATTR Value .002
SYMBOL res 448 184 R270
SYMATTR InstName R7
SYMATTR Value 15K
SYMBOL ind 752 -296 R270
SYMATTR InstName L2
SYMATTR Value 6.3
SYMATTR SpiceLine Rpar=10000
SYMBOL res -816 -136 R0
SYMATTR InstName R8
SYMATTR Value .01
SYMBOL RES -992 -440 R0
SYMATTR InstName R9
SYMATTR Value 10K
SYMBOL PowerProducts\\LTC1628-SYNC 128 -120 R0
SYMATTR InstName U1
SYMBOL voltage 128 568 R0
SYMATTR InstName V2
SYMATTR Value SIN(1 1 160K)
SYMBOL res 368 488 R270
SYMATTR InstName R10
SYMATTR Value 10K
SYMBOL cap 480 488 R270
SYMATTR InstName C12
SYMATTR Value 500p
SYMBOL RES -944 72 R0
SYMATTR InstName Rload1
SYMATTR Value 10
SYMBOL RES 976 72 R0
SYMATTR InstName Rload2
SYMATTR Value 5