Version 4
SHEET 1 1044 680
WIRE 96 -64 -32 -64
WIRE 128 -64 96 -64
WIRE -32 -48 -32 -64
WIRE 96 32 96 -64
WIRE 128 32 96 32
WIRE 448 32 416 32
WIRE 608 32 528 32
WIRE 768 32 608 32
WIRE 896 32 768 32
WIRE -32 48 -32 32
WIRE 608 48 608 32
WIRE 768 48 768 32
WIRE 896 48 896 32
WIRE 608 128 608 112
WIRE 608 128 416 128
WIRE 608 144 608 128
WIRE 768 144 768 112
WIRE 896 144 896 128
WIRE 448 224 416 224
WIRE 528 224 512 224
WIRE 608 240 608 224
WIRE 32 320 0 320
WIRE 128 320 112 320
WIRE 32 416 0 416
WIRE 128 416 96 416
WIRE 272 496 272 480
FLAG -32 48 0
FLAG 0 320 0
FLAG 0 416 0
FLAG 272 496 0
FLAG 608 240 0
FLAG 768 144 0
FLAG 896 144 0
FLAG 528 224 0
FLAG 896 32 OUT
FLAG -32 -64 IN
SYMBOL PowerProducts\\LT8642S 272 176 R0
SYMATTR InstName U1
SYMBOL voltage -32 -64 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 128 304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 17.8K
SYMBOL cap 96 400 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL ind 432 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value .28µ
SYMBOL res 592 128 R0
SYMATTR InstName R2
SYMATTR Value 100K
SYMBOL cap 752 48 R0
WINDOW 123 24 54 Left 2
WINDOW 3 39 31 Left 2
SYMATTR Value2 x2
SYMATTR InstName C2
SYMATTR Value 220µ
SYMBOL cap 448 208 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 123 60 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1n
SYMATTR Value2 Rser=11K
SYMBOL cap 592 48 R0
WINDOW 3 40 34 Left 2
WINDOW 123 23 64 Left 2
SYMATTR Value 47p
SYMATTR Value2 Rpar=100K
SYMATTR InstName C4
SYMBOL res 880 32 R0
SYMATTR InstName Rload
SYMATTR Value .1
TEXT 648 368 Left 2 !.tran 1m startup