* SPICE netlist
C1 N001 0 4.7
V1 IN 0 12
R2 IN N002 10K
C4 OUT 0 220 x3 V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
R5 N005 0 13.3K
C5 N007 0 .001
Rload OUT 0 .066
D1 0 N002 1N750
C2 OUT 0 220 x3 V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
C3 N006 0 1n Rser=10K
XU1 N007 N006 N005 0 N005 N006 N007 OUT N003 OUT 0 N003 N002 OUT N004 NC_01 NC_02 0 NC_03 0 MP_04 MP_05 MP_06 NC_07 N001 IN MP_08 MP_09 MP_10 MP_11 NC_12 NC_13 0 0 N001 MP_14 MP_15 N002 LTM4652 ;pnba TK/SS1)Comp1)FB1)SGND)FB2)Comp2)TK/SS2)VOUT2)VoutS1)Diffp)Diffn)Diffout)Run2)VOUT1)VoutS2)Pgood1)Pgood2)GND)SW2)VinOVP))))ExtVcc)IntVcc)Vin)))))SW1)Clkout)PhMD)Mode/PLLIN)Fset)))Run1
.tran .4m startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1088 1152
WIRE 0 -560 0 -576
WIRE 0 -480 0 -496
WIRE 0 -480 -192 -480
WIRE -416 -464 -528 -464
WIRE -96 -464 -416 -464
WIRE -528 -448 -528 -464
WIRE -416 -448 -416 -464
WIRE 304 -448 -304 -448
WIRE -192 -432 -192 -480
WIRE -96 -432 -96 -464
WIRE 0 -432 0 -480
WIRE 208 -432 208 -464
WIRE -304 -368 -304 -448
WIRE -288 -368 -304 -368
WIRE 304 -368 304 -448
WIRE 304 -368 288 -368
WIRE -528 -352 -528 -368
WIRE -416 -352 -416 -368
WIRE -304 -352 -304 -368
WIRE -304 -352 -416 -352
WIRE -416 -336 -416 -352
WIRE -416 -256 -416 -272
WIRE -400 -80 -432 -80
WIRE -288 -80 -400 -80
WIRE 352 -80 288 -80
WIRE 480 -80 352 -80
WIRE 544 -80 480 -80
WIRE -400 -64 -400 -80
WIRE 352 -64 352 -80
WIRE 544 -64 544 -80
WIRE -288 16 -336 16
WIRE 304 16 288 16
WIRE -400 32 -400 0
WIRE 352 32 352 0
WIRE 544 32 544 16
WIRE -288 112 -384 112
WIRE 352 112 288 112
WIRE 384 112 352 112
WIRE 384 128 384 112
WIRE -512 208 -544 208
WIRE -368 208 -448 208
WIRE -288 208 -368 208
WIRE 320 208 288 208
WIRE 384 224 384 208
WIRE -288 304 -352 304
WIRE 304 304 288 304
WIRE 384 304 304 304
WIRE 384 320 384 304
WIRE -288 400 -304 400
WIRE 384 400 384 384
WIRE -240 480 -240 464
WIRE -144 480 -144 464
WIRE -48 480 -48 464
WIRE 48 480 48 464
WIRE 144 480 144 464
WIRE 480 480 480 -80
WIRE 480 480 144 480
WIRE -336 512 -336 16
WIRE 240 512 240 464
WIRE 240 512 -336 512
WIRE -352 528 -352 304
WIRE 304 528 304 304
WIRE 304 528 -352 528
WIRE -368 544 -368 208
WIRE 320 544 320 208
WIRE 320 544 -368 544
WIRE -384 560 -384 112
WIRE 352 560 352 112
WIRE 352 560 -384 560
WIRE -432 576 -432 -80
WIRE 480 576 480 480
WIRE 480 576 -432 576
FLAG -240 480 0
FLAG 0 -576 0
FLAG -528 -352 0
FLAG -416 -256 0
FLAG -304 400 0
FLAG -400 32 0
FLAG -528 -464 IN
FLAG 384 224 0
FLAG 384 400 0
FLAG 544 32 0
FLAG 352 32 0
FLAG 544 -80 OUT
FLAG -144 480 0
FLAG -48 480 0
FLAG -544 208 0
FLAG 48 480 0
FLAG 208 -464 0
SYMBOL cap -16 -496 M180
SYMATTR InstName C1
SYMATTR Value 4.7
SYMBOL voltage -528 -464 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res -432 -464 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL polcap -416 -64 R0
SYMATTR Value 220
SYMATTR Value2 x3
SYMATTR InstName C4
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
SYMBOL res 368 112 R0
SYMATTR InstName R5
SYMATTR Value 13.3K
SYMBOL cap 368 320 R0
SYMATTR InstName C5
SYMATTR Value .001
SYMBOL res 528 -80 R0
SYMATTR InstName Rload
SYMATTR Value .066
SYMBOL zener -432 -272 M180
SYMATTR InstName D1
SYMATTR Value 1N750
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL polcap 336 -64 R0
SYMATTR Value 220
SYMATTR Value2 x3
SYMATTR InstName C2
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=3.2 Rser=0.012 Lser=0 mfg="KEMET" pn="T520V227M006ASE012" type="Tantalum"
SYMBOL cap -448 192 R90
SYMATTR InstName C3
SYMATTR Value 1n
SYMATTR Value2 Rser=10K
SYMBOL LTM4652 0 16 R0
SYMATTR InstName U1