Version 4
SHEET 1 880 680
WIRE 64 -96 -32 -96
WIRE 224 -96 64 -96
WIRE -32 -80 -32 -96
WIRE 224 -80 224 -96
WIRE 64 -16 64 -96
WIRE 80 -16 64 -16
WIRE 400 -16 368 -16
WIRE 448 -16 400 -16
WIRE 560 -16 528 -16
WIRE 608 -16 560 -16
WIRE 704 -16 608 -16
WIRE 400 0 400 -16
WIRE 608 0 608 -16
WIRE 704 0 704 -16
WIRE -32 16 -32 0
WIRE 80 80 64 80
WIRE 400 80 400 64
WIRE 400 80 368 80
WIRE 608 96 608 64
WIRE 704 96 704 80
WIRE 80 176 64 176
WIRE 560 176 560 -16
WIRE 560 176 368 176
WIRE 64 272 64 176
WIRE 80 272 64 272
WIRE 384 272 368 272
WIRE 480 272 464 272
WIRE 80 368 64 368
WIRE 224 448 224 432
FLAG 224 448 0
FLAG 64 80 0
FLAG 64 368 0
FLAG 608 96 0
FLAG 704 96 0
FLAG -32 16 0
FLAG 480 272 0
FLAG 704 -16 OUT
FLAG -32 -96 IN
SYMBOL PowerProducts\\LTC7138 224 176 R0
SYMATTR InstName U1
SYMBOL voltage -32 -96 R0
SYMATTR InstName V1
SYMATTR Value 72
SYMBOL ind 432 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=.5
SYMBOL diode 384 64 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value MURS120
SYMBOL cap 592 0 R0
SYMATTR InstName C1
SYMATTR Value 22µ
SYMATTR SpiceLine Rser=10m
SYMBOL res 688 -16 R0
SYMATTR InstName Rload
SYMATTR Value 12.5
SYMBOL res 368 288 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 150K
TEXT 496 408 Left 2 !.tran 2m startup