Version 4
SHEET 1 1068 680
WIRE 608 -112 608 -128
WIRE 480 -32 480 -128
WIRE 480 -32 432 -32
WIRE 560 -32 480 -32
WIRE 480 0 480 -32
WIRE 512 0 480 0
WIRE 608 0 608 -16
WIRE 608 0 576 0
WIRE 608 16 608 0
WIRE 224 48 224 16
WIRE 336 48 336 16
WIRE 432 48 432 32
WIRE 608 112 608 96
WIRE 720 112 608 112
WIRE 480 128 480 0
WIRE 224 160 224 128
WIRE 336 160 336 128
WIRE 608 160 608 112
WIRE 720 160 720 112
WIRE 480 256 480 208
WIRE 608 256 608 240
WIRE 720 256 720 224
FLAG 224 160 0
FLAG 336 160 0
FLAG 224 16 batt
IOPIN 224 16 Out
FLAG 336 16 3V
IOPIN 336 16 Out
FLAG 608 256 0
FLAG 608 -192 batt
IOPIN 608 -192 Out
FLAG 480 -128 3V
IOPIN 480 -128 Out
FLAG 480 256 0
FLAG 720 256 0
FLAG 432 48 0
SYMBOL voltage 224 32 R0
SYMATTR InstName V1
SYMBOL voltage 336 32 R0
SYMATTR InstName V2
SYMBOL res 592 144 R0
SYMATTR InstName R2
SYMBOL sw 608 0 R0
SYMATTR InstName S1
SYMBOL pmos 560 -112 R0
SYMATTR InstName M2
SYMBOL res 464 112 R0
SYMATTR InstName R3
SYMBOL diode 704 160 R0
SYMATTR InstName D1
SYMBOL diode 512 16 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D2
SYMBOL cap 416 -32 R0
SYMATTR InstName C1
SYMBOL diode 592 -192 R0
SYMATTR InstName D3