EESchema Schematic File Version 2 date Tue 29 Jun 2010 07:26:50 PM CEST LIBS:power LIBS:device LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:special LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:sd2snes-cache EELAYER 24 0 EELAYER END $Descr A4 11700 8267 Sheet 1 1 Title "noname.sch" Date "29 jun 2010" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text Notes 7200 3450 0 60 ~ 0 near AVIN $Comp L MIC23250_FIXOUT U1 U 1 1 4C2A2BD4 P 6000 4050 F 0 "U1" H 6000 4150 60 0000 C CNN F 1 "MIC23250-S4YMT" H 6000 3950 60 0000 C CNN F 2 "QFN10-2x2" H 6000 4050 60 0001 C CNN 1 6000 4050 1 0 0 -1 $EndComp $Comp L GND #PWR5 U 1 1 4C2A2BD3 P 5900 5150 F 0 "#PWR5" H 5900 5150 30 0001 C CNN F 1 "GND" H 5900 5080 30 0001 C CNN 1 5900 5150 1 0 0 -1 $EndComp $Comp L GND #PWR6 U 1 1 4C2A2BD2 P 6100 5150 F 0 "#PWR6" H 6100 5150 30 0001 C CNN F 1 "GND" H 6100 5080 30 0001 C CNN 1 6100 5150 1 0 0 -1 $EndComp $Comp L INDUCTOR L1 U 1 1 4C2A2BD1 P 4800 4050 F 0 "L1" V 4750 4050 40 0000 C CNN F 1 "1uH" V 4900 4050 40 0000 C CNN F 2 "SM1210L" H 4800 4050 60 0001 C CNN 1 4800 4050 0 -1 -1 0 $EndComp $Comp L INDUCTOR L2 U 1 1 4C2A2BD0 P 7200 4050 F 0 "L2" V 7150 4050 40 0000 C CNN F 1 "1uH" V 7300 4050 40 0000 C CNN F 2 "SM1210L" H 7200 4050 60 0001 C CNN 1 7200 4050 0 -1 -1 0 $EndComp $Comp L C C4 U 1 1 4C2A2BCF P 7650 4450 F 0 "C4" H 7700 4550 50 0000 L CNN F 1 "4.7u" H 7700 4350 50 0000 L CNN F 2 "SM0805_FIXEDMASK" H 7650 4450 60 0001 C CNN 1 7650 4450 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 4C2A2BCE P 7050 3400 F 0 "C3" H 7100 3500 50 0000 L CNN F 1 "10n" H 7100 3300 50 0000 L CNN F 2 "SM0805_FIXEDMASK" H 7050 3400 60 0001 C CNN 1 7050 3400 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 4C2A2BCD P 4350 4450 F 0 "C1" H 4400 4550 50 0000 L CNN F 1 "4.7u" H 4400 4350 50 0000 L CNN F 2 "SM0805_FIXEDMASK" H 4350 4450 60 0001 C CNN 1 4350 4450 1 0 0 -1 $EndComp $Comp L GND #PWR7 U 1 1 4C2A2BCC P 7050 3750 F 0 "#PWR7" H 7050 3750 30 0001 C CNN F 1 "GND" H 7050 3680 30 0001 C CNN 1 7050 3750 1 0 0 -1 $EndComp $Comp L +5V #PWR2 U 1 1 4C2A2BCB P 4350 2950 F 0 "#PWR2" H 4350 3040 20 0001 C CNN F 1 "+5V" H 4350 3040 30 0000 C CNN 1 4350 2950 1 0 0 -1 $EndComp $Comp L GND #PWR3 U 1 1 4C2A2BCA P 4350 5150 F 0 "#PWR3" H 4350 5150 30 0001 C CNN F 1 "GND" H 4350 5080 30 0001 C CNN 1 4350 5150 1 0 0 -1 $EndComp $Comp L GND #PWR8 U 1 1 4C2A2BC9 P 7650 5150 F 0 "#PWR8" H 7650 5150 30 0001 C CNN F 1 "GND" H 7650 5080 30 0001 C CNN 1 7650 5150 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 4C2A2BC8 P 4850 3400 F 0 "C2" H 4700 3500 50 0000 L CNN F 1 "4.7u" H 4650 3300 50 0000 L CNN F 2 "SM0805_FIXEDMASK" H 4850 3400 60 0001 C CNN 1 4850 3400 1 0 0 -1 $EndComp $Comp L GND #PWR4 U 1 1 4C2A2BC7 P 4850 3750 F 0 "#PWR4" H 4850 3750 30 0001 C CNN F 1 "GND" H 4850 3680 30 0001 C CNN 1 4850 3750 1 0 0 -1 $EndComp $Comp L +1.2V #PWR1 U 1 1 4C2A2BC6 P 4200 4050 F 0 "#PWR1" H 4200 4190 20 0001 C CNN F 1 "+1.2V" H 4200 4160 30 0000 C CNN 1 4200 4050 1 0 0 -1 $EndComp $Comp L +3.3V #PWR9 U 1 1 4C2A2BC5 P 7800 4050 F 0 "#PWR9" H 7800 4010 30 0001 C CNN F 1 "+3.3V" H 7800 4160 30 0000 C CNN 1 7800 4050 1 0 0 -1 $EndComp Text Label 6800 4050 0 50 ~ 0 REG_SW2 Text Label 5150 4050 0 50 ~ 0 REG_SW1 Text Notes 5550 2900 0 50 ~ 0 3.3V + 1.2V Step-Down Connection ~ 4350 4050 Wire Wire Line 4500 4050 4200 4050 Wire Wire Line 6850 3850 6850 3050 Connection ~ 6100 3050 Wire Wire Line 6100 3050 6100 3150 Connection ~ 5150 3050 Wire Wire Line 6750 3850 6850 3850 Wire Wire Line 7050 3050 7050 3200 Wire Wire Line 7650 5150 7650 4650 Wire Wire Line 4350 4250 5250 4250 Wire Wire Line 4350 4050 4350 4250 Wire Wire Line 5100 4050 5250 4050 Wire Wire Line 7050 3750 7050 3600 Connection ~ 5900 3150 Wire Wire Line 5900 4950 5900 5150 Wire Wire Line 6100 4950 6100 5150 Connection ~ 6100 3150 Wire Wire Line 4850 3750 4850 3600 Wire Wire Line 6750 4050 6900 4050 Wire Wire Line 7650 4250 6750 4250 Wire Wire Line 7650 4050 7650 4250 Wire Wire Line 4350 5150 4350 4650 Wire Wire Line 4850 3050 4850 3200 Wire Wire Line 5150 3850 5250 3850 Connection ~ 6850 3050 Wire Wire Line 5900 3050 5900 3150 Connection ~ 5900 3050 Wire Wire Line 4350 3050 4350 2950 Wire Wire Line 4350 3050 7050 3050 Connection ~ 4850 3050 Wire Wire Line 5150 3050 5150 3850 Wire Wire Line 7500 4050 7800 4050 Connection ~ 7650 4050 $EndSCHEMATC