* SPICE netlist
R1 N017 N021 1K
C1 N021 0 3300p
C2 N020 0 270p
C3 N019 0 270p
R2 N018 N022 1K
C4 N022 0 3300p
MQ1 N011 N016 0 0 FDS6680A
L1 N011 N012 33
R3 N012 OUT2 50m
C5 OUT2 0 220 Rser=0.1 x2
D1 0 N011 1N5818
MQ2 N010 N015 0 0 FDS6680A
MQ3 N010 N005 IN IN FDC638P
L2 N010 N009 20
R4 N009 OUT1 50m
C6 OUT1 0 220 Rser=0.1 x2
D2 0 N010 1N5818
C7 N009 OUT1 1000p
Rload2 OUT2 0 5
Rload1 OUT1 0 5
V1 IN 0 25
MQ4 N011 N006 IN IN FDC638P
C8 N006 N008 .1
C9 N001 N004 .15
C10 N001 0 3.3
C11 N001 0 3.3
C12 N005 N007 .1
C13 N012 OUT2 1000p
C14 N001 N003 .15
XU1 MP_01 IN N003 N005 N007 N015 N023 N001 N019 N017 0 N013 OUT1 N009 N018 N020 OUT2 N012 N024 0 N001 0 N016 N008 N006 N004 N002 OUT2 LTC1267-ADJ ;pnba )Vin)CAP1)P-gate1)P-drive1)N-gate1)FB)Vcc1)Ct1)Ith1)SGND1)SHDN1)Sense-1)Sense+1)Ith2)Ct2)Sense-2)Sense+2)FB2)SGND2)Vcc2)PGND)N-gate2)P-drive2)P-gate2)CAP2)MSHDN)EXTVcc
R7 0 N023 1K
R8 N023 OUT1 3K
R9 N024 0 1K
R10 N024 OUT2 3K
.tran 1.5m

* LTspice schematic (.asc)
Version 4
SHEET 1 2176 992
WIRE -640 -496 -768 -496
WIRE 80 -496 -640 -496
WIRE 736 -496 80 -496
WIRE -768 -480 -768 -496
WIRE 976 -480 240 -480
WIRE -384 -464 -464 -464
WIRE -240 -464 -384 -464
WIRE 400 -464 -240 -464
WIRE 512 -464 400 -464
WIRE 624 -464 512 -464
WIRE -464 -448 -464 -464
WIRE 624 -448 624 -464
WIRE -384 -416 -384 -464
WIRE 512 -416 512 -464
WIRE -240 -400 -240 -464
WIRE -80 -400 -80 -432
WIRE 80 -400 80 -496
WIRE 240 -400 240 -480
WIRE 400 -400 400 -464
WIRE -768 -384 -768 -400
WIRE -464 -368 -464 -384
WIRE 624 -368 624 -384
WIRE -384 -320 -384 -352
WIRE -320 -320 -384 -320
WIRE 512 -320 512 -352
WIRE 512 -320 480 -320
WIRE -640 -256 -640 -496
WIRE 736 -256 736 -496
WIRE -400 -240 -592 -240
WIRE -320 -240 -400 -240
WIRE 512 -240 480 -240
WIRE 688 -240 512 -240
WIRE -400 -160 -400 -176
WIRE -320 -160 -400 -160
WIRE 512 -160 512 -176
WIRE 512 -160 480 -160
WIRE -896 -128 -912 -128
WIRE -800 -128 -816 -128
WIRE -768 -128 -800 -128
WIRE -640 -128 -640 -160
WIRE -640 -128 -688 -128
WIRE 736 -128 736 -160
WIRE 768 -128 736 -128
WIRE 864 -128 848 -128
WIRE 880 -128 864 -128
WIRE 976 -128 976 -480
WIRE 976 -128 960 -128
WIRE -800 -80 -800 -128
WIRE -416 -80 -800 -80
WIRE -320 -80 -416 -80
WIRE 512 -80 480 -80
WIRE 864 -80 864 -128
WIRE 864 -80 512 -80
WIRE -912 0 -912 -128
WIRE -912 0 -1072 0
WIRE -496 0 -912 0
WIRE -416 0 -416 -16
WIRE -416 0 -496 0
WIRE -320 0 -416 0
WIRE 512 0 512 -16
WIRE 512 0 480 0
WIRE 656 0 512 0
WIRE 976 0 976 -128
WIRE 976 0 656 0
WIRE 1088 0 976 0
WIRE -1072 16 -1072 0
WIRE -912 16 -912 0
WIRE 976 16 976 0
WIRE 1088 16 1088 0
WIRE -640 64 -640 -128
WIRE -640 64 -752 64
WIRE 736 64 736 -128
WIRE 880 64 736 64
WIRE -640 80 -640 64
WIRE -320 80 -352 80
WIRE 512 80 480 80
WIRE 736 80 736 64
WIRE -752 96 -752 64
WIRE 880 96 880 64
WIRE -1072 112 -1072 96
WIRE -912 112 -912 80
WIRE 976 112 976 80
WIRE 1088 112 1088 96
WIRE -320 160 -592 160
WIRE 688 160 480 160
WIRE -752 192 -752 160
WIRE -640 192 -640 176
WIRE 736 192 736 176
WIRE 880 192 880 160
WIRE 656 208 656 0
WIRE -496 240 -496 0
WIRE -320 240 -400 240
WIRE 560 240 480 240
WIRE -400 256 -400 240
WIRE 560 256 560 240
WIRE -176 336 -176 320
WIRE -48 336 -48 320
WIRE 80 336 80 320
WIRE 208 336 208 320
WIRE 336 336 336 320
WIRE -400 352 -400 336
WIRE 560 352 560 336
WIRE -176 416 -176 400
WIRE 336 416 336 400
WIRE -400 432 -400 416
WIRE 560 432 560 416
WIRE -496 496 -496 320
WIRE -256 496 -256 320
WIRE -256 496 -496 496
WIRE -224 496 -256 496
WIRE -128 496 -144 496
WIRE 320 496 288 496
WIRE 416 496 416 320
WIRE 416 496 400 496
WIRE 656 496 656 288
WIRE 656 496 416 496
FLAG 560 432 0
FLAG 208 336 0
FLAG 336 416 0
FLAG -176 416 0
FLAG -48 336 0
FLAG 80 336 0
FLAG -400 432 0
FLAG 976 112 0
FLAG 736 192 0
FLAG 880 192 0
FLAG -912 112 0
FLAG -640 192 0
FLAG -752 192 0
FLAG 1088 112 0
FLAG -1072 112 0
FLAG -768 -384 0
FLAG 624 -368 0
FLAG -464 -368 0
FLAG -128 496 0
FLAG 288 496 0
FLAG -768 -496 IN
FLAG -1072 0 OUT1
FLAG 1088 0 OUT2
SYMBOL RES -416 240 R0
SYMATTR InstName R1
SYMATTR Value 1K
SYMBOL cap -416 352 R0
SYMATTR InstName C1
SYMATTR Value 3300p
SYMBOL cap 320 336 R0
SYMATTR InstName C2
SYMATTR Value 270p
SYMBOL cap -192 336 R0
SYMATTR InstName C3
SYMATTR Value 270p
SYMBOL res 544 240 R0
SYMATTR InstName R2
SYMATTR Value 1K
SYMBOL cap 544 352 R0
SYMATTR InstName C4
SYMATTR Value 3300p
SYMBOL NMOS 688 80 R0
SYMATTR InstName Q1
SYMATTR Value FDS6680A
SYMBOL ind 752 -112 R270
SYMATTR InstName L1
SYMATTR Value 33
SYMBOL res 864 -144 M90
SYMATTR InstName R3
SYMATTR Value 50m
SYMBOL polcap 960 16 R0
SYMATTR SpiceLine2 x2
SYMATTR Value 220
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C5
SYMBOL schottky 864 160 M180
SYMATTR InstName D1
SYMATTR Value 1N5818
SYMBOL NMOS -592 80 M0
SYMATTR InstName Q2
SYMATTR Value FDS6680A
SYMBOL PMOS -592 -160 R180
SYMATTR InstName Q3
SYMATTR Value FDC638P
SYMBOL ind -672 -112 M270
SYMATTR InstName L2
SYMATTR Value 20
SYMBOL res -800 -144 R90
SYMATTR InstName R4
SYMATTR Value 50m
SYMBOL polcap -928 16 R0
SYMATTR SpiceLine2 x2
SYMATTR Value 220
SYMATTR SpiceLine Rser=0.1
SYMATTR InstName C6
SYMBOL schottky -768 160 M180
SYMATTR InstName D2
SYMATTR Value 1N5818
SYMBOL cap -432 -80 R0
SYMATTR InstName C7
SYMATTR Value 1000p
SYMBOL res 1072 0 R0
SYMATTR InstName Rload2
SYMATTR Value 5
SYMBOL res -1088 0 R0
SYMATTR InstName Rload1
SYMATTR Value 5
SYMBOL VOLTAGE -768 -496 R0
SYMATTR InstName V1
SYMATTR Value 25
SYMBOL PMOS 688 -160 M180
SYMATTR InstName Q4
SYMATTR Value FDC638P
SYMBOL cap 496 -240 R0
SYMATTR InstName C8
SYMATTR Value .1
SYMBOL cap 496 -416 R0
SYMATTR InstName C9
SYMATTR Value .15
SYMBOL polcap 608 -448 R0
SYMATTR InstName C10
SYMATTR Value 3.3
SYMBOL polcap -480 -448 R0
SYMATTR InstName C11
SYMATTR Value 3.3
SYMBOL cap -416 -240 R0
SYMATTR InstName C12
SYMATTR Value .1
SYMBOL cap 496 -80 R0
SYMATTR InstName C13
SYMATTR Value 1000p
SYMBOL cap -400 -416 R0
SYMATTR InstName C14
SYMATTR Value .15
SYMBOL PowerProducts\\LTC1267-ADJ 80 -80 R0
SYMATTR InstName U1
SYMBOL res -128 480 R90
SYMATTR InstName R7
SYMATTR Value 1K
SYMBOL res -512 336 M180
SYMATTR InstName R8
SYMATTR Value 3K
SYMBOL res 416 480 R90
SYMATTR InstName R9
SYMATTR Value 1K
SYMBOL res 640 304 M180
SYMATTR InstName R10
SYMATTR Value 3K