* SPICE netlist
XU1 IN N001 0 N007 N010 0 N004 IN IN N002 0 N008 N009 0 N003 IN LTC1874 ;pnba Vin1)Sense-1)GND1)FB1)Ith/Run2)PGND2)Pgate2)PVin2)Vin2)Sense-2)GND2)FB2)Ith/Run1)PGND1)Pgate1)PVin1
V1 IN 0 9.5
R1 IN N001 40m
D2 0 N006 MBRS140
L1 N005 OUT1 4.7
C1 OUT1 0 47 Rser=10m
R3 OUT1 N007 249K
R4 N007 0 80.6K
Rload1 OUT1 0 3.3
R2 N009 N011 10K
C2 N011 0 220p
R5 IN N002 40m
D1 0 N005 MBRS140
L2 N006 OUT2 4.7
C3 OUT2 0 47 Rser=10m
R6 OUT2 N008 100K
R7 N008 0 80.6K
Rload2 OUT2 0 1.8
R8 N010 N012 10K
C4 N012 0 220p
M1 N005 N003 N001 N001 SI3443DV
M2 N006 N004 N002 N002 SI3443DV
.tran 1m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 2064 688
WIRE -712 -344 -744 -344
WIRE -344 -344 -712 -344
WIRE -152 -344 -344 -344
WIRE -24 -344 -152 -344
WIRE 104 -344 -24 -344
WIRE 232 -344 104 -344
WIRE 440 -344 232 -344
WIRE -744 -328 -744 -344
WIRE -344 -312 -344 -344
WIRE 440 -312 440 -344
WIRE -152 -280 -152 -344
WIRE -24 -280 -24 -344
WIRE 104 -280 104 -344
WIRE 232 -280 232 -344
WIRE -744 -216 -744 -248
WIRE -344 -200 -344 -232
WIRE -232 -200 -344 -200
WIRE 440 -200 440 -232
WIRE 440 -200 312 -200
WIRE -344 -184 -344 -200
WIRE 440 -184 440 -200
WIRE -264 -168 -296 -168
WIRE 392 -168 360 -168
WIRE -264 -104 -264 -168
WIRE -232 -104 -264 -104
WIRE 360 -104 360 -168
WIRE 360 -104 312 -104
WIRE -936 -72 -1016 -72
WIRE -872 -72 -936 -72
WIRE -744 -72 -872 -72
WIRE -680 -72 -744 -72
WIRE -536 -72 -600 -72
WIRE -344 -72 -344 -88
WIRE -344 -72 -536 -72
WIRE 440 -72 440 -88
WIRE 552 -72 440 -72
WIRE 616 -72 552 -72
WIRE 760 -72 696 -72
WIRE 888 -72 760 -72
WIRE 952 -72 888 -72
WIRE 1032 -72 952 -72
WIRE -1016 -40 -1016 -72
WIRE -872 -40 -872 -72
WIRE -744 -40 -744 -72
WIRE -536 -40 -536 -72
WIRE 552 -40 552 -72
WIRE 760 -40 760 -72
WIRE 888 -40 888 -72
WIRE 1032 -40 1032 -72
WIRE -232 -8 -408 -8
WIRE 472 -8 312 -8
WIRE -872 56 -872 40
WIRE -792 56 -872 56
WIRE -744 56 -744 24
WIRE -536 56 -536 24
WIRE 552 56 552 24
WIRE 760 56 760 24
WIRE 888 56 888 40
WIRE 888 56 808 56
WIRE -1016 88 -1016 40
WIRE -872 88 -872 56
WIRE -232 88 -344 88
WIRE 392 88 312 88
WIRE 888 88 888 56
WIRE 1032 88 1032 40
WIRE -792 120 -792 56
WIRE -408 120 -408 -8
WIRE -408 120 -792 120
WIRE -344 120 -344 88
WIRE 392 120 392 88
WIRE 472 120 472 -8
WIRE 808 120 808 56
WIRE 808 120 472 120
WIRE -872 200 -872 168
WIRE -152 200 -152 168
WIRE -24 200 -24 168
WIRE 104 200 104 168
WIRE 232 200 232 168
WIRE 888 200 888 168
WIRE -344 248 -344 200
WIRE 392 248 392 200
WIRE -344 344 -344 312
WIRE 392 344 392 312
FLAG -744 -216 0
FLAG -712 -344 IN
FLAG -152 200 0
FLAG -24 200 0
FLAG 104 200 0
FLAG 232 200 0
FLAG -536 56 0
FLAG -744 56 0
FLAG -872 200 0
FLAG -1016 88 0
FLAG -344 344 0
FLAG 552 56 0
FLAG 760 56 0
FLAG 888 200 0
FLAG 1032 88 0
FLAG 392 344 0
FLAG -936 -72 OUT1
FLAG 952 -72 OUT2
SYMBOL PowerProducts\\LTC1874 40 -56 R0
SYMATTR InstName U1
SYMBOL voltage -744 -344 R0
SYMATTR InstName V1
SYMATTR Value 9.5
SYMBOL res -360 -328 R0
SYMATTR InstName R1
SYMATTR Value 40m
SYMBOL schottky 536 24 M180
SYMATTR InstName D2
SYMATTR Value MBRS140
SYMBOL ind -584 -56 M270
SYMATTR InstName L1
SYMATTR Value 4.7
SYMBOL polcap -760 -40 R0
SYMATTR InstName C1
SYMATTR Value 47
SYMATTR SpiceLine Rser=10m
SYMBOL res -888 -56 R0
SYMATTR InstName R3
SYMATTR Value 249K
SYMBOL res -888 72 R0
SYMATTR InstName R4
SYMATTR Value 80.6K
SYMBOL res -1032 -56 R0
SYMATTR InstName Rload1
SYMATTR Value 3.3
SYMBOL res -360 104 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL cap -360 248 R0
SYMATTR InstName C2
SYMATTR Value 220p
SYMBOL res 424 -328 R0
SYMATTR InstName R5
SYMATTR Value 40m
SYMBOL schottky -552 24 M180
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMBOL ind 600 -56 R270
SYMATTR InstName L2
SYMATTR Value 4.7
SYMBOL polcap 744 -40 R0
SYMATTR InstName C3
SYMATTR Value 47
SYMATTR SpiceLine Rser=10m
SYMBOL res 872 -56 R0
SYMATTR InstName R6
SYMATTR Value 100K
SYMBOL res 872 72 R0
SYMATTR InstName R7
SYMATTR Value 80.6K
SYMBOL res 1016 -56 R0
SYMATTR InstName Rload2
SYMATTR Value 1.8
SYMBOL res 376 104 R0
SYMATTR InstName R8
SYMATTR Value 10K
SYMBOL cap 376 248 R0
SYMATTR InstName C4
SYMATTR Value 220p
SYMBOL pmos -296 -88 R180
SYMATTR InstName M1
SYMATTR Value SI3443DV
SYMBOL pmos 392 -88 M180
SYMATTR InstName M2
SYMATTR Value SI3443DV