Version 4
SHEET 1 884 680
WIRE -16 16 -112 16
WIRE 416 16 -16 16
WIRE 560 16 464 16
WIRE 688 16 624 16
WIRE 784 16 688 16
WIRE -112 32 -112 16
WIRE 416 32 416 16
WIRE 464 32 464 16
WIRE 688 32 688 16
WIRE 784 32 784 16
WIRE -112 128 -112 112
WIRE 464 128 464 112
WIRE 688 128 688 96
WIRE 784 128 784 112
WIRE -16 144 -16 16
WIRE 96 144 -16 144
WIRE 416 144 416 112
WIRE 416 144 320 144
WIRE -16 176 -16 144
WIRE 416 176 416 144
WIRE -16 272 -16 256
WIRE 96 272 -16 272
WIRE 416 272 416 256
WIRE 416 272 320 272
WIRE -16 288 -16 272
WIRE 208 336 208 320
WIRE -16 384 -16 368
FLAG 208 336 0
FLAG -112 128 0
FLAG -16 384 0
FLAG -112 16 IN
FLAG 464 128 0
FLAG 688 128 0
FLAG 784 128 0
FLAG 784 16 OUT
SYMBOL PowerProducts\\LT8300 208 208 R0
SYMATTR InstName U1
SYMBOL voltage -112 16 R0
SYMATTR InstName V1
SYMATTR Value 60
SYMBOL res -32 160 R0
SYMATTR InstName R1
SYMATTR Value 1Meg
SYMBOL res -32 272 R0
SYMATTR InstName R2
SYMATTR Value 40.2K
SYMBOL ind2 400 16 R0
WINDOW 0 0 39 Right 2
WINDOW 3 0 77 Right 2
SYMATTR InstName L1
SYMATTR Value 300µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=500m Cpar=1p
SYMBOL ind2 480 128 R180
WINDOW 0 -4 72 Right 2
WINDOW 3 -1 33 Right 2
SYMATTR InstName L2
SYMATTR Value 19µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=20m Cpar=.2p
SYMBOL res 400 160 R0
SYMATTR InstName R3
SYMATTR Value 210K
SYMBOL schottky 560 32 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS1100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 672 32 R0
SYMATTR InstName C1
SYMATTR Value 4.7µ
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.003 Lser=0 mfg="TDK" pn="C2012X5ROJ475M" type="X5R"
SYMBOL res 768 16 R0
SYMATTR InstName Rload
SYMATTR Value 16.6
TEXT 440 16 Bottom 2 !K1 L1 L2 1
TEXT 552 376 Left 2 !.tran 3m startup