* SPICE netlist
XU1 0 N005 IN2 IN1 N003 N004 N001 N002 0 N011 N008 N013 N015 IN2 N007 IN1 N009 N010 MP_01 N012 N008 NC_02 N006 MP_03 0 0 N014 LTC3126 ;pnba PWM/SYNC)SW)PVin2)PVin1)BST1)COM1)BST2)COM2)DIODE)VREF)Vcc)VSET1)VSET2)Vin2)_PRIORITY)Vin1)_VALID1)_VALID2))PGOOD)ENA)ExtVcc)FB))GND)PGND)Rt
C1 N002 N001 .1 Rser=1m
C2 N004 N003 .1 Rser=1m
V1 IN1 0 15
V2 IN2 0 12
C3 N008 0 1
R1 N011 N013 499K
R2 N013 N015 249K
R3 N015 0 249K
L1 N005 OUT 2.2 Rser=5m
C4 OUT 0 47 V=6.3 Irms=0 Rser=.001
R4 OUT 0 1.3
R5 N014 0 16.5K
R7 N006 0 374K
C5 OUT N006 10p Rpar=1.13Meg
.tran .9m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1184 1056
WIRE -304 -512 -336 -512
WIRE -208 -512 -240 -512
WIRE -48 -512 -80 -512
WIRE 48 -512 16 -512
WIRE -336 -448 -336 -512
WIRE -208 -448 -208 -512
WIRE -80 -448 -80 -512
WIRE 48 -448 48 -512
WIRE -448 -384 -592 -384
WIRE -400 -384 -448 -384
WIRE 144 -384 112 -384
WIRE 256 -384 224 -384
WIRE 496 -384 256 -384
WIRE 592 -384 496 -384
WIRE -592 -368 -592 -384
WIRE 496 -368 496 -384
WIRE 592 -368 592 -384
WIRE 256 -336 256 -384
WIRE -448 -288 -448 -384
WIRE -400 -288 -448 -288
WIRE -592 -272 -592 -288
WIRE 496 -272 496 -304
WIRE 592 -272 592 -288
WIRE -448 -192 -592 -192
WIRE -400 -192 -448 -192
WIRE 256 -192 256 -272
WIRE 256 -192 112 -192
WIRE -592 -176 -592 -192
WIRE 256 -176 256 -192
WIRE -448 -96 -448 -192
WIRE -400 -96 -448 -96
WIRE 128 -96 112 -96
WIRE -592 -80 -592 -96
WIRE 256 -80 256 -96
WIRE -448 0 -528 0
WIRE -400 0 -448 0
WIRE 128 0 112 0
WIRE -528 16 -528 0
WIRE -528 96 -528 80
WIRE -448 96 -448 0
WIRE -400 96 -448 96
WIRE 128 96 112 96
WIRE -400 192 -544 192
WIRE 128 192 112 192
WIRE -544 208 -544 192
WIRE -400 288 -432 288
WIRE 128 288 112 288
WIRE 224 288 208 288
WIRE -544 304 -544 288
WIRE -432 304 -432 288
WIRE -432 304 -544 304
WIRE -544 320 -544 304
WIRE -400 384 -432 384
WIRE 144 384 112 384
WIRE -544 416 -544 400
WIRE -432 416 -432 384
WIRE -432 416 -544 416
WIRE -544 432 -544 416
WIRE -304 464 -304 448
WIRE -128 464 -128 448
WIRE 32 464 32 448
WIRE -544 528 -544 512
FLAG -592 -272 0
FLAG -592 -80 0
FLAG -528 96 0
FLAG -544 528 0
FLAG -304 464 0
FLAG -128 464 0
FLAG 32 464 0
FLAG 144 384 0
FLAG 224 288 0
FLAG 496 -272 0
FLAG 592 -272 0
FLAG 256 -80 0
FLAG 592 -384 OUT
FLAG -592 -384 IN1
FLAG -592 -192 IN2
SYMBOL PowerProducts\\LTC3126 -144 0 R0
SYMATTR InstName U1
SYMBOL cap -240 -528 R90
SYMATTR InstName C1
SYMATTR Value .1
SYMATTR SpiceLine Rser=1m
SYMBOL cap 16 -528 R90
SYMATTR InstName C2
SYMATTR Value .1
SYMATTR SpiceLine Rser=1m
SYMBOL voltage -592 -384 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -592 -192 R0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL cap -544 16 R0
SYMATTR InstName C3
SYMATTR Value 1
SYMBOL res -560 192 R0
SYMATTR InstName R1
SYMATTR Value 499K
SYMBOL res -560 304 R0
SYMATTR InstName R2
SYMATTR Value 249K
SYMBOL res -560 416 R0
SYMATTR InstName R3
SYMATTR Value 249K
SYMBOL ind 128 -368 R270
SYMATTR InstName L1
SYMATTR Value 2.2
SYMATTR SpiceLine Rser=5m
SYMBOL cap 480 -368 R0
SYMATTR InstName C4
SYMATTR Value 47
SYMATTR SpiceLine V=6.3 Irms=0 Rser=.001
SYMBOL res 576 -384 R0
SYMATTR InstName R4
SYMATTR Value 1.3
SYMBOL res 112 304 R270
SYMATTR InstName R5
SYMATTR Value 16.5K
SYMBOL res 240 -192 R0
SYMATTR InstName R7
SYMATTR Value 374K
SYMBOL cap 240 -336 R0
SYMATTR Value2 Rpar=1.13Meg
SYMATTR InstName C5
SYMATTR Value 10p