* SPICE netlist
V1 IN 0 3.6
XU1 N012 N014 N010 N011 N015 0 N013 0 MP_01 OUT N004 N006 N002 N002 N009 N003 N008 N001 N001 N005 N007 IN N003 IN 0 LTC3785 ;pnba RUN/SS)Vc)FB)Vsense)Ilset)CCM)Rt)Mode))Isvout)Vbst2)TG2)SW2)Issw2)BG2)Vdrv)BG1)Issw1)SW1)TG1)Vbst1)Isvin)Vcc)Vin)GND
MQ1 IN N005 N001 N001 FDS6890A
MQ2 N001 N008 0 0 FDS6890A
D1 IN N007 CMDSH2-3
C1 N007 N001 .22
L1 N001 N002 2.2 Rpar=1K
MQ3 OUT N006 N002 N002 FDS6890A
D2 N003 N004 CMDSH2-3
C2 N004 N002 .22
MQ4 N002 N009 0 0 FDS6890A
D3 0 N001 PMEG2020AEA
D4 0 N002 PMEG2020AEA
C3 OUT 0 220 Rser=2m
R1 OUT N010 215K
R2 N010 0 127K
C4 OUT N010 220p Rser=10K
C5 N010 N014 470p Rser=31.6K Cpar=10p
R3 OUT N011 215K
R4 N011 0 127K
R5 N015 0 42.2K
R6 N013 0 49.9K
C6 N012 0 500p
Rload OUT 0 5
.tran 900u startup

* LTspice schematic (.asc)
Version 4
SHEET 1 1520 1072
WIRE -216 -536 -376 -536
WIRE 344 -536 -136 -536
WIRE -664 -488 -760 -488
WIRE -520 -488 -664 -488
WIRE -264 -488 -520 -488
WIRE -104 -488 -184 -488
WIRE 40 -488 -104 -488
WIRE 136 -488 104 -488
WIRE -760 -472 -760 -488
WIRE -264 -472 -264 -488
WIRE -184 -472 -184 -488
WIRE -104 -472 -104 -488
WIRE -520 -408 -520 -488
WIRE -360 -408 -520 -408
WIRE 200 -408 -8 -408
WIRE 552 -408 200 -408
WIRE 664 -408 552 -408
WIRE 760 -408 664 -408
WIRE -520 -392 -520 -408
WIRE 200 -392 200 -408
WIRE 552 -392 552 -408
WIRE 760 -392 760 -408
WIRE -760 -376 -760 -392
WIRE -664 -312 -664 -488
WIRE -360 -312 -472 -312
WIRE 152 -312 -8 -312
WIRE 552 -296 552 -328
WIRE 760 -296 760 -312
WIRE -664 -216 -664 -248
WIRE -360 -216 -664 -216
WIRE 136 -216 136 -488
WIRE 136 -216 -8 -216
WIRE -664 -200 -664 -216
WIRE 136 -200 136 -216
WIRE -664 -120 -664 -136
WIRE -520 -120 -520 -296
WIRE -520 -120 -664 -120
WIRE -376 -120 -376 -536
WIRE -376 -120 -520 -120
WIRE -360 -120 -376 -120
WIRE 136 -120 136 -136
WIRE 136 -120 -8 -120
WIRE 200 -120 200 -296
WIRE 200 -120 136 -120
WIRE 344 -120 344 -536
WIRE 344 -120 200 -120
WIRE -520 -24 -520 -120
WIRE -520 -24 -728 -24
WIRE -360 -24 -520 -24
WIRE 200 -24 200 -120
WIRE 200 -24 -8 -24
WIRE 344 -24 200 -24
WIRE -520 -8 -520 -24
WIRE 200 -8 200 -24
WIRE 664 -8 664 -408
WIRE 664 -8 552 -8
WIRE 760 -8 664 -8
WIRE -728 8 -728 -24
WIRE 344 8 344 -24
WIRE 552 8 552 -8
WIRE 664 8 664 -8
WIRE 760 8 760 -8
WIRE -360 72 -472 72
WIRE 152 72 -8 72
WIRE -728 104 -728 72
WIRE -520 104 -520 88
WIRE 200 104 200 88
WIRE 344 104 344 72
WIRE 664 104 664 88
WIRE 760 104 760 72
WIRE 760 104 664 104
WIRE 552 120 552 88
WIRE 552 120 440 120
WIRE 552 136 552 120
WIRE -456 168 -472 168
WIRE -360 168 -392 168
WIRE 440 168 440 120
WIRE 440 168 -8 168
WIRE 552 232 552 216
WIRE -456 264 -472 264
WIRE -360 264 -376 264
WIRE 40 264 -8 264
WIRE 664 264 664 104
WIRE 664 264 40 264
WIRE 40 280 40 264
WIRE 664 280 664 264
WIRE -360 360 -392 360
WIRE 40 360 40 344
WIRE 40 360 -8 360
WIRE 664 376 664 360
WIRE -360 456 -392 456
WIRE 8 456 -8 456
WIRE 104 456 88 456
WIRE -184 536 -184 520
FLAG -760 -376 0
FLAG -520 104 0
FLAG 200 104 0
FLAG -728 104 0
FLAG 344 104 0
FLAG 552 -296 0
FLAG 760 -296 0
FLAG 664 376 0
FLAG 552 232 0
FLAG 104 456 0
FLAG -184 536 0
FLAG -472 264 0
FLAG -472 168 0
FLAG -392 360 0
FLAG -392 456 0
FLAG 760 -408 OUT
FLAG -760 -488 IN
SYMBOL VOLTAGE -760 -488 R0
SYMATTR InstName V1
SYMATTR Value 3.6
SYMBOL PowerProducts\\LTC3785 -184 24 R0
SYMATTR InstName U1
SYMBOL nmos -472 -392 M0
SYMATTR InstName Q1
SYMATTR Value FDS6890A
SYMBOL nmos -472 -8 M0
SYMATTR InstName Q2
SYMATTR Value FDS6890A
SYMBOL schottky -680 -312 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -680 -200 R0
SYMATTR InstName C1
SYMATTR Value .22
SYMBOL ind -232 -520 R270
SYMATTR InstName L1
SYMATTR Value 2.2
SYMATTR SpiceLine Rpar=1K
SYMBOL nmos 152 -392 R0
SYMATTR InstName Q3
SYMATTR Value FDS6890A
SYMBOL schottky 40 -472 R270
SYMATTR InstName D2
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 120 -200 R0
SYMATTR InstName C2
SYMATTR Value .22
SYMBOL nmos 152 -8 R0
SYMATTR InstName Q4
SYMATTR Value FDS6890A
SYMBOL schottky -744 72 M180
SYMATTR InstName D3
SYMATTR Value PMEG2020AEA
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 328 72 M180
SYMATTR InstName D4
SYMATTR Value PMEG2020AEA
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 536 -392 R0
SYMATTR InstName C3
SYMATTR Value 220
SYMATTR SpiceLine Rser=2m
SYMBOL res 648 -8 R0
SYMATTR InstName R1
SYMATTR Value 215K
SYMBOL res 648 264 R0
SYMATTR InstName R2
SYMATTR Value 127K
SYMBOL cap 744 8 R0
SYMATTR SpiceLine Rser=10K
SYMATTR Value 220p
SYMATTR InstName C4
SYMBOL cap 24 280 R0
SYMATTR Value 470p
SYMATTR SpiceLine Rser=31.6K Cpar=10p
SYMATTR InstName C5
SYMBOL res 536 -8 R0
SYMATTR InstName R3
SYMATTR Value 215K
SYMBOL res 536 120 R0
SYMATTR InstName R4
SYMATTR Value 127K
SYMBOL res -8 472 R270
SYMATTR InstName R5
SYMATTR Value 42.2K
SYMBOL res -360 248 R90
SYMATTR InstName R6
SYMATTR Value 49.9K
SYMBOL cap -392 152 R90
SYMATTR InstName C6
SYMATTR Value 500p
SYMBOL res 744 -408 R0
SYMATTR InstName Rload
SYMATTR Value 5