Version 4
SHEET 1 880 680
WIRE 128 0 48 0
WIRE 288 0 128 0
WIRE 48 16 48 0
WIRE 288 16 288 0
WIRE 128 64 128 0
WIRE 160 64 128 64
WIRE 496 64 416 64
WIRE 640 64 576 64
WIRE 48 112 48 96
WIRE 128 144 128 64
WIRE 160 144 128 144
WIRE 448 144 416 144
WIRE 560 144 528 144
WIRE 640 144 640 64
WIRE 640 144 560 144
WIRE 704 144 640 144
WIRE 560 160 560 144
WIRE 704 160 704 144
WIRE 128 224 128 144
WIRE 160 224 128 224
WIRE 560 224 416 224
WIRE 560 256 560 224
WIRE 704 256 704 240
WIRE 128 304 128 224
WIRE 160 304 128 304
WIRE 640 304 640 144
WIRE 640 304 416 304
WIRE 288 368 288 352
FLAG 560 256 0
FLAG 288 368 0
FLAG 48 112 0
FLAG 704 144 OUT
FLAG 704 256 0
FLAG 48 0 IN
SYMBOL ind 432 160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2.2µ
SYMBOL cap 544 160 R0
WINDOW 0 21 15 Left 2
WINDOW 3 22 48 Left 2
SYMATTR InstName C1
SYMATTR Value 20µ
SYMBOL res 592 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100K
SYMBOL voltage 48 0 R0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL res 688 144 R0
SYMATTR Value 2.5
SYMATTR InstName Rload
SYMBOL ADP2120-2.5 288 272 R0
SYMATTR InstName U1
TEXT 504 344 Left 2 !.tran 1m