Version 4
SHEET 1 1856 1016
WIRE 704 -384 -368 -384
WIRE -368 -352 -368 -384
WIRE -368 -256 -368 -272
WIRE -96 -240 -192 -240
WIRE 592 -240 560 -240
WIRE -192 -144 -192 -160
WIRE -96 -144 -192 -144
WIRE -192 -128 -192 -144
WIRE 704 -48 704 -384
WIRE 704 -48 560 -48
WIRE -192 -32 -192 -48
WIRE -144 48 -272 48
WIRE -96 48 -144 48
WIRE 704 48 704 -48
WIRE 704 48 560 48
WIRE -224 144 -272 144
WIRE -96 144 -144 144
WIRE 592 144 560 144
WIRE 704 160 704 48
WIRE -96 240 -144 240
WIRE 704 240 704 224
WIRE 704 240 560 240
WIRE 704 256 704 240
WIRE 608 336 560 336
WIRE 704 336 704 320
WIRE 704 336 608 336
WIRE 800 336 704 336
WIRE 944 336 880 336
WIRE 1024 336 944 336
WIRE 1120 336 1024 336
WIRE 1232 336 1120 336
WIRE 1024 368 1024 336
WIRE 1120 368 1120 336
WIRE 1232 368 1232 336
WIRE -96 432 -128 432
WIRE 688 432 560 432
WIRE 1024 464 1024 432
WIRE 1120 464 1120 432
WIRE 1232 464 1232 448
WIRE 944 528 944 336
WIRE 944 528 560 528
WIRE -192 624 -224 624
WIRE -96 624 -128 624
WIRE 688 624 560 624
WIRE 96 704 96 688
WIRE 192 784 192 688
WIRE 208 784 192 784
WIRE 288 784 288 688
WIRE 288 784 272 784
WIRE 304 784 288 784
WIRE 384 784 384 688
WIRE 192 896 192 784
WIRE 208 896 192 896
WIRE 288 896 288 784
WIRE 288 896 272 896
FLAG -192 -32 0
FLAG -272 144 0
FLAG 96 704 0
FLAG -368 -256 0
FLAG -368 -384 vIN
FLAG 1024 464 0
FLAG 1120 464 0
FLAG 688 624 0
FLAG 688 432 0
FLAG -224 624 0
FLAG 1232 464 0
FLAG 592 -240 0
FLAG 592 144 INTVcc
FLAG -128 432 INTVcc
FLAG 1232 336 vOUT
FLAG -144 240 CLKout
FLAG 608 336 SW
FLAG -272 48 0
FLAG -144 48 SYNC
SYMBOL res -176 -256 M0
SYMATTR InstName R1
SYMATTR Value 6.04k
SYMBOL res -176 -144 M0
SYMATTR InstName R2
SYMATTR Value 5.97k
SYMBOL res -128 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 11.6k
SYMBOL voltage -368 -368 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 400 768 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL cap 272 768 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 60 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 4.7n
SYMATTR SpiceLine Rser=6.04k
SYMBOL schottky 688 160 R0
SYMATTR InstName D1
SYMATTR Value CMDSH2-3
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 688 256 R0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL ind 784 352 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 0.18µ
SYMBOL cap 1008 368 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C3
SYMATTR Value 330µ
SYMBOL cap 1104 368 R0
WINDOW 123 24 84 Left 2
SYMATTR Value2 x2
SYMATTR InstName C4
SYMATTR Value 100µ
SYMBOL cap -192 608 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 1n
SYMBOL res 1216 352 R0
SYMATTR InstName R5
SYMATTR Value 50m
SYMBOL cap 272 880 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 60 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 47p
SYMBOL LTC7131-1 240 176 R0
SYMATTR InstName U2
TEXT -384 -672 Left 2 !.param MFR_VOUT_COMMAND = 0
TEXT -384 -544 Left 2 !.param MARGIN_LOW = 0
TEXT -384 -520 Left 2 !.param MARGIN_HIGH = 0
TEXT -384 -648 Left 2 !.param MFR_VOUT_MARGIN_LOW = 0
TEXT -384 -624 Left 2 !.param MFR_VOUT_MARGIN_HIGH = 0
TEXT -384 -496 Left 2 !.param SOFT_OFF = 0
TEXT -88 888 Left 2 !.tran 10m startup
TEXT -384 -472 Left 2 !.param ONbit = 1
TEXT -384 -584 Left 2 !.param MFR_FAULT_RESPONSE = 0