Version 4
SHEET 1 1000 680
WIRE -320 -64 -336 -64
WIRE 544 -64 -320 -64
WIRE 656 -64 592 -64
WIRE 800 -64 720 -64
WIRE 880 -64 800 -64
WIRE 912 -64 880 -64
WIRE 544 -48 544 -64
WIRE 592 -48 592 -64
WIRE 912 -48 912 -64
WIRE 800 -32 800 -64
WIRE -336 48 -336 -64
WIRE -64 48 -336 48
WIRE 112 48 -64 48
WIRE 384 48 336 48
WIRE 544 48 544 32
WIRE 544 48 464 48
WIRE 592 48 592 32
WIRE 800 48 800 32
WIRE 800 48 592 48
WIRE 912 48 912 32
WIRE 912 48 800 48
WIRE 544 64 544 48
WIRE 912 64 912 48
WIRE -64 80 -64 48
WIRE 112 144 48 144
WIRE 496 144 336 144
WIRE -336 160 -336 48
WIRE -64 192 -64 160
WIRE 48 192 48 144
WIRE 48 192 -64 192
WIRE -64 224 -64 192
WIRE 112 240 48 240
WIRE 544 240 544 160
WIRE 544 240 336 240
WIRE 544 256 544 240
WIRE -336 352 -336 240
WIRE -64 352 -64 304
WIRE 544 352 544 336
FLAG 48 240 0
FLAG -336 352 0
FLAG 544 352 0
FLAG 912 64 0
FLAG -320 -64 VIN
FLAG 880 -64 VOUT
FLAG -64 352 0
SYMBOL voltage -336 144 R0
WINDOW 3 16 105 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value PWL(0 0 100u 36)
SYMATTR InstName V1
SYMBOL ind2 528 -64 R0
WINDOW 0 1 27 Right 2
WINDOW 3 1 80 Right 2
SYMATTR InstName L1
SYMATTR Value 5µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=10m
SYMBOL ind2 608 48 R180
WINDOW 0 1 84 Right 2
WINDOW 3 4 34 Right 2
SYMATTR InstName L2
SYMATTR Value 1.25µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=10m
SYMBOL schottky 656 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 -3 60 VBottom 2
SYMATTR InstName D1
SYMATTR Value RB085BM-60
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 784 -32 R0
SYMATTR InstName C2
SYMATTR Value 132µ
SYMBOL res 480 64 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 249K
SYMBOL res 528 240 R0
SYMATTR InstName R2
SYMATTR Value 5m
SYMBOL res 896 -64 R0
SYMATTR InstName Rload
SYMATTR Value 3
SYMBOL LT8306 224 192 R0
SYMATTR InstName U1
SYMBOL NMOS 496 64 R0
SYMATTR InstName M1
SYMATTR Value IPA180N10N3
SYMBOL res -80 64 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res -80 208 R0
SYMATTR InstName R4
SYMATTR Value 16.9k
TEXT 504 -88 Left 2 !K1 L1 L2 1
TEXT 144 344 Left 2 !.tran 5m startup
TEXT -16 -200 Left 3 ;60V Low-Iq No-Opto Isolated Flyback Controller\n9V to 36V Input, 12V/4A Output Isolated Flyback Converter