Version 4
SHEET 1 880 680
WIRE 176 96 128 96
WIRE 288 96 256 96
WIRE 128 144 128 96
WIRE 288 144 288 96
WIRE 48 224 -32 224
WIRE 64 224 48 224
WIRE 384 224 352 224
WIRE 496 224 384 224
WIRE 608 224 496 224
WIRE -32 240 -32 224
WIRE 384 240 384 224
WIRE 496 240 496 224
WIRE 608 240 608 224
WIRE -32 336 -32 320
WIRE 48 336 48 224
WIRE 64 336 48 336
WIRE 384 336 384 320
WIRE 384 336 352 336
WIRE 496 336 496 304
WIRE 608 336 608 320
WIRE 384 352 384 336
WIRE 128 432 128 416
WIRE 288 432 288 416
FLAG -32 336 0
FLAG 288 432 0
FLAG 384 432 0
FLAG 128 432 0
FLAG 496 336 0
FLAG 608 336 0
FLAG -32 224 IN
FLAG 608 224 OUT
SYMBOL LTC3531 208 272 R0
SYMATTR InstName U1
SYMBOL ind 160 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMBOL res 368 224 R0
SYMATTR InstName R1
SYMATTR Value 340K
SYMBOL res 368 336 R0
SYMATTR InstName R2
SYMATTR Value 200K
SYMBOL voltage -32 224 R0
SYMATTR InstName V1
SYMATTR Value 2
SYMBOL cap 480 240 R0
SYMATTR InstName C1
SYMATTR Value 10µ
SYMBOL res 592 224 R0
SYMATTR InstName Rload
SYMATTR Value 40
TEXT 512 400 Left 2 !.tran 500u startup