Version 4
SHEET 1 1628 936
WIRE 384 448 272 448
WIRE 512 448 384 448
WIRE 560 448 512 448
WIRE 672 448 640 448
WIRE 704 448 672 448
WIRE 800 448 768 448
WIRE 848 448 800 448
WIRE 960 448 928 448
WIRE 1072 448 960 448
WIRE 1168 448 1072 448
WIRE 1264 448 1168 448
WIRE 272 464 272 448
WIRE 1168 464 1168 448
WIRE 1264 464 1264 448
WIRE 800 480 800 448
WIRE 960 496 960 448
WIRE 1072 512 1072 448
WIRE 272 560 272 544
WIRE 512 560 512 448
WIRE 672 560 672 448
WIRE 1168 560 1168 528
WIRE 1264 560 1264 544
WIRE 800 576 800 544
WIRE 384 656 384 448
WIRE 432 656 384 656
WIRE 960 656 960 576
WIRE 960 656 752 656
WIRE 1072 656 1072 576
WIRE 1072 656 960 656
WIRE 960 672 960 656
WIRE 592 768 592 752
WIRE 960 768 960 752
FLAG 272 560 0
FLAG 592 768 0
FLAG 1264 560 0
FLAG 1168 560 0
FLAG 960 768 0
FLAG 800 576 0
FLAG 1264 448 OUT
FLAG 272 448 IN
SYMBOL schottky 784 480 R0
SYMATTR InstName D1
SYMATTR Value MBRS140
SYMBOL RES 944 656 R0
SYMATTR InstName R1
SYMATTR Value 10.0K
SYMBOL RES 944 480 R0
SYMATTR InstName R2
SYMATTR Value 29.4K
SYMBOL VOLTAGE 272 448 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL polcap 704 432 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL POWERPRODUCTS\\LT1931 592 656 R0
WINDOW 0 0 -120 Center 2
WINDOW 3 40 114 Left 2
SYMATTR InstName U1
SYMBOL ind2 544 464 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 4 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMBOL ind2 944 464 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 4 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 10µ
SYMBOL cap 1056 512 R0
SYMATTR InstName C2
SYMATTR Value 220p
SYMBOL polcap 1152 528 M180
WINDOW 0 24 57 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 22µ
SYMATTR SpiceLine Rser=50m
SYMBOL res 1248 448 R0
SYMATTR InstName Rload
SYMATTR Value 20
TEXT 1096 696 Left 2 !.tran 500u startup
TEXT 704 368 Left 2 !K1 L1 L2 1