Version 4
SHEET 1 988 824
WIRE 192 -224 192 -240
WIRE 192 -128 192 -160
WIRE -48 -96 -160 -96
WIRE -16 -96 -48 -96
WIRE -160 -80 -160 -96
WIRE -48 -16 -48 -96
WIRE -16 -16 -48 -16
WIRE 512 -16 400 -16
WIRE 624 -16 592 -16
WIRE 672 -16 624 -16
WIRE 752 -16 672 -16
WIRE 672 0 672 -16
WIRE -160 16 -160 0
WIRE -16 64 -48 64
WIRE 448 64 400 64
WIRE 624 64 624 -16
WIRE 624 64 448 64
WIRE 672 80 672 64
WIRE -48 144 -48 64
WIRE -16 144 -48 144
WIRE 448 144 400 144
WIRE 528 144 448 144
WIRE 624 144 608 144
WIRE 752 192 752 -16
WIRE 752 192 688 192
WIRE 752 208 752 192
WIRE -112 224 -128 224
WIRE -16 224 -32 224
WIRE 688 224 688 192
WIRE 688 224 400 224
WIRE 752 304 752 288
WIRE 752 304 400 304
WIRE 752 368 752 304
WIRE -16 384 -32 384
WIRE 704 384 400 384
WIRE -112 464 -144 464
WIRE -16 464 -48 464
WIRE 752 480 752 464
WIRE -128 544 -144 544
WIRE -16 544 -48 544
WIRE 416 544 400 544
WIRE 752 560 752 544
WIRE 128 592 128 576
WIRE 272 592 272 576
WIRE 128 688 128 672
WIRE 272 688 272 672
FLAG -160 16 0
FLAG -32 384 0
FLAG 416 544 0
FLAG 192 -240 0
FLAG -144 464 0
FLAG -144 544 0
FLAG 128 688 0
FLAG 272 752 0
FLAG 672 80 0
FLAG 752 560 0
FLAG -160 -96 IN
FLAG 752 -16 OUT
FLAG 624 144 0
FLAG -128 224 0
SYMBOL voltage -160 -96 R0
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL cap -48 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res -32 528 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 28.7K
SYMBOL res 112 576 R0
SYMATTR InstName R2
SYMATTR Value 45.3K
SYMBOL cap 256 688 R0
WINDOW 3 43 36 Left 2
SYMATTR Value 100p
SYMATTR InstName C2
SYMBOL cap 176 -224 R0
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL ind 496 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 2.2µ
SYMATTR Value2 Rser=10m
SYMBOL cap 656 0 R0
SYMATTR InstName C5
SYMATTR Value 2.2µ
SYMBOL res 736 192 R0
SYMATTR InstName R3
SYMATTR Value 25m
SYMBOL LED 736 480 R0
WINDOW 123 43 68 Left 2
WINDOW 3 79 37 Left 2
SYMATTR Value2 n=2
SYMATTR Value LXK2-PW14
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL pmos 704 464 M180
WINDOW 0 60 76 Left 2
WINDOW 3 59 40 Left 2
SYMATTR InstName M1
SYMATTR Value IRF7343P
SYMBOL res 432 48 R0
SYMATTR InstName R4
SYMATTR Value 140K
SYMBOL res 512 160 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 10K
SYMBOL voltage -16 224 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName V2
SYMATTR Value 1.5
SYMBOL LT3934S 192 224 R0
SYMATTR InstName U1
SYMBOL res 256 576 R0
SYMATTR InstName R6
SYMATTR Value 10k
TEXT 528 640 Left 2 !.tran 500u startup