EESchema Schematic File Version 2 LIBS:stmbl LIBS:transistors LIBS:stm32 LIBS:conn LIBS:power LIBS:74xgxx LIBS:74xx LIBS:ac-dc LIBS:actel LIBS:adc-dac LIBS:Altera LIBS:analog_devices LIBS:analog_switches LIBS:atmel LIBS:audio LIBS:brooktre LIBS:cmos_ieee LIBS:cmos4000 LIBS:contrib LIBS:cypress LIBS:dc-dc LIBS:device LIBS:digital-audio LIBS:diode LIBS:display LIBS:dsp LIBS:elec-unifil LIBS:ESD_Protection LIBS:ftdi LIBS:gennum LIBS:graphic LIBS:hc11 LIBS:intel LIBS:interface LIBS:ir LIBS:Lattice LIBS:linear LIBS:logo LIBS:maxim LIBS:memory LIBS:microchip_dspic33dsc LIBS:microchip_pic10mcu LIBS:microchip_pic12mcu LIBS:microchip_pic16mcu LIBS:microchip_pic18mcu LIBS:microchip_pic32mcu LIBS:microchip LIBS:microcontrollers LIBS:motor_drivers LIBS:motorola LIBS:msp430 LIBS:nordicsemi LIBS:nxp_armmcu LIBS:onsemi LIBS:opto LIBS:Oscillators LIBS:philips LIBS:Power_Management LIBS:powerint LIBS:pspice LIBS:references LIBS:regul LIBS:relays LIBS:rfcom LIBS:sensors LIBS:silabs LIBS:siliconi LIBS:stm8 LIBS:supertex LIBS:switches LIBS:texas LIBS:transf LIBS:ttl_ieee LIBS:valves LIBS:video LIBS:Xicor LIBS:stmsp-cache EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 3 10 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L MCP16331 U5 U 1 1 5918AC00 P 6050 3500 F 0 "U5" H 6050 3800 60 0000 C CNN F 1 "MCP16331" H 6050 3200 60 0000 C CNN F 2 "stmbl:SOT-23-6" H 6650 3750 60 0001 C CNN F 3 "" H 6650 3750 60 0001 C CNN 1 6050 3500 1 0 0 -1 $EndComp $Comp L INDUCTOR L3 U 1 1 5918C529 P 7050 3400 F 0 "L3" V 7000 3400 50 0000 C CNN F 1 "22ยต 650mA" V 7150 3400 50 0000 C CNN F 2 "stmbl:SMD_INDUCTOR_32x25" H 7050 3400 50 0001 C CNN F 3 "" H 7050 3400 50 0000 C CNN 1 7050 3400 0 -1 -1 0 $EndComp $Comp L C C23 U 1 1 5918DD3D P 5600 5550 F 0 "C23" H 5625 5650 50 0000 L CNN F 1 "2.2u" H 5625 5450 50 0000 L CNN F 2 "stmbl:C_0603" H 5638 5400 50 0001 C CNN F 3 "" H 5600 5550 50 0000 C CNN 1 5600 5550 1 0 0 -1 $EndComp $Comp L C C25 U 1 1 5918DD80 P 6600 5550 F 0 "C25" H 6625 5650 50 0000 L CNN F 1 "2.2u" H 6625 5450 50 0000 L CNN F 2 "stmbl:C_0603" H 6638 5400 50 0001 C CNN F 3 "" H 6600 5550 50 0000 C CNN 1 6600 5550 1 0 0 -1 $EndComp $Comp L C C24 U 1 1 5918DDD5 P 6650 3150 F 0 "C24" H 6675 3250 50 0000 L CNN F 1 "100n" H 6675 3050 50 0000 L CNN F 2 "stmbl:C_0603" H 6688 3000 50 0001 C CNN F 3 "" H 6650 3150 50 0000 C CNN 1 6650 3150 1 0 0 -1 $EndComp $Comp L C C22 U 1 1 5918DE05 P 5450 3650 F 0 "C22" H 5475 3750 50 0000 L CNN F 1 "100n" H 5475 3550 50 0000 L CNN F 2 "stmbl:C_0603" H 5488 3500 50 0001 C CNN F 3 "" H 5450 3650 50 0000 C CNN 1 5450 3650 1 0 0 -1 $EndComp $Comp L D D1 U 1 1 59234466 P 6650 3650 F 0 "D1" H 6650 3750 50 0000 C CNN F 1 "ss110" H 6650 3550 50 0000 C CNN F 2 "stmbl:SMA_Standard" H 6650 3650 50 0001 C CNN F 3 "" H 6650 3650 50 0000 C CNN 1 6650 3650 0 1 1 0 $EndComp $Comp L R R25 U 1 1 59234687 P 7450 3650 F 0 "R25" V 7530 3650 50 0000 C CNN F 1 "51k" V 7450 3650 50 0000 C CNN F 2 "stmbl:R_0603" V 7380 3650 50 0001 C CNN F 3 "" H 7450 3650 50 0000 C CNN 1 7450 3650 1 0 0 -1 $EndComp $Comp L R R26 U 1 1 592346BA P 7450 4150 F 0 "R26" V 7530 4150 50 0000 C CNN F 1 "10k" V 7450 4150 50 0000 C CNN F 2 "stmbl:R_0603" V 7380 4150 50 0001 C CNN F 3 "" H 7450 4150 50 0000 C CNN 1 7450 4150 1 0 0 -1 $EndComp $Comp L D D2 U 1 1 5923480D P 6900 2900 F 0 "D2" H 6900 3000 50 0000 C CNN F 1 "1N4148" H 6900 2800 50 0000 C CNN F 2 "stmbl:SOD-123" H 6900 2900 50 0001 C CNN F 3 "" H 6900 2900 50 0000 C CNN 1 6900 2900 1 0 0 -1 $EndComp Wire Wire Line 6050 3050 6050 2900 Wire Wire Line 6050 2900 6750 2900 Wire Wire Line 6650 3000 6650 2900 Connection ~ 6650 2900 Wire Wire Line 6450 3400 6750 3400 Wire Wire Line 6650 3300 6650 3500 Connection ~ 6650 3400 Wire Wire Line 7350 3400 8350 3400 Wire Wire Line 7450 2900 7450 3500 Wire Wire Line 7450 3800 7450 4000 Wire Wire Line 6650 4400 6650 3800 Wire Wire Line 5450 4400 8350 4400 Wire Wire Line 7450 4400 7450 4300 Wire Wire Line 6050 3950 6050 4400 Connection ~ 6650 4400 Connection ~ 7450 3400 Connection ~ 7450 4400 Wire Wire Line 7050 2900 7450 2900 Wire Wire Line 6450 3600 6550 3600 Wire Wire Line 6550 3600 6550 3900 Wire Wire Line 6550 3900 7450 3900 Connection ~ 7450 3900 Wire Wire Line 5650 3400 5450 3400 Wire Wire Line 5450 3300 5450 3500 Wire Wire Line 5450 3800 5450 4400 Connection ~ 6050 4400 $Comp L GND #PWR027 U 1 1 59234F24 P 8050 4500 F 0 "#PWR027" H 8050 4250 50 0001 C CNN F 1 "GND" H 8050 4350 50 0000 C CNN F 2 "" H 8050 4500 50 0000 C CNN F 3 "" H 8050 4500 50 0000 C CNN 1 8050 4500 1 0 0 -1 $EndComp $Comp L +5V #PWR028 U 1 1 59234FB8 P 8050 3300 F 0 "#PWR028" H 8050 3150 50 0001 C CNN F 1 "+5V" H 8050 3440 50 0000 C CNN F 2 "" H 8050 3300 50 0000 C CNN F 3 "" H 8050 3300 50 0000 C CNN 1 8050 3300 1 0 0 -1 $EndComp $Comp L VPP #PWR029 U 1 1 5923508D P 5450 3300 F 0 "#PWR029" H 5450 3150 50 0001 C CNN F 1 "VPP" H 5450 3450 50 0000 C CNN F 2 "" H 5450 3300 50 0000 C CNN F 3 "" H 5450 3300 50 0000 C CNN 1 5450 3300 1 0 0 -1 $EndComp Connection ~ 5450 3400 $Comp L C C21 U 1 1 592353E2 P 7750 3650 F 0 "C21" H 7775 3750 50 0000 L CNN F 1 "10u" H 7775 3550 50 0000 L CNN F 2 "stmbl:C_0805" H 7788 3500 50 0001 C CNN F 3 "" H 7750 3650 50 0000 C CNN 1 7750 3650 1 0 0 -1 $EndComp $Comp L C C28 U 1 1 5923540F P 8050 3650 F 0 "C28" H 8075 3750 50 0000 L CNN F 1 "10u" H 8075 3550 50 0000 L CNN F 2 "stmbl:C_0805" H 8088 3500 50 0001 C CNN F 3 "" H 8050 3650 50 0000 C CNN 1 8050 3650 1 0 0 -1 $EndComp Wire Wire Line 7750 4400 7750 3800 Wire Wire Line 8050 3800 8050 4500 Connection ~ 7750 4400 Wire Wire Line 8050 3300 8050 3500 Wire Wire Line 7750 3500 7750 3400 Connection ~ 7750 3400 Connection ~ 8050 4400 Connection ~ 8050 3400 Wire Wire Line 5700 5100 5600 5100 Wire Wire Line 5600 5000 5600 5400 Wire Wire Line 6500 5100 6600 5100 Wire Wire Line 6600 5000 6600 5400 Wire Wire Line 5600 5700 5600 5800 Wire Wire Line 5600 5800 6600 5800 Wire Wire Line 6600 5800 6600 5700 Wire Wire Line 6100 5500 6100 5900 Connection ~ 6100 5800 Connection ~ 6600 5100 $Comp L +5V #PWR030 U 1 1 59235D71 P 5600 5000 F 0 "#PWR030" H 5600 4850 50 0001 C CNN F 1 "+5V" H 5600 5140 50 0000 C CNN F 2 "" H 5600 5000 50 0000 C CNN F 3 "" H 5600 5000 50 0000 C CNN 1 5600 5000 1 0 0 -1 $EndComp Connection ~ 5600 5100 Text Notes 7550 2950 0 60 ~ 0 LQH32PN220MNCL $Comp L MIC55 U6 U 1 1 59444047 P 6100 5200 F 0 "U6" H 5850 5400 50 0000 L CNN F 1 "MIC5504-3.3YM5" H 6700 5400 50 0000 R CNN F 2 "stmbl:SOT-23-5" H 6750 4950 50 0001 C CIN F 3 "" H 6100 5200 50 0000 C CNN 1 6100 5200 1 0 0 -1 $EndComp Wire Wire Line 5700 5300 5600 5300 Connection ~ 5600 5300 $Comp L Led_Small D12 U 1 1 5944CEE5 P 8350 3650 F 0 "D12" H 8300 3775 50 0000 L CNN F 1 "Led_Small" H 8175 3550 50 0000 L CNN F 2 "stmbl:LED-0805-SIDE" V 8350 3650 50 0001 C CNN F 3 "" V 8350 3650 50 0000 C CNN 1 8350 3650 0 -1 -1 0 $EndComp $Comp L R R1 U 1 1 5944CF59 P 8350 4150 F 0 "R1" V 8430 4150 50 0000 C CNN F 1 "470" V 8350 4150 50 0000 C CNN F 2 "stmbl:R_0603" V 8280 4150 50 0001 C CNN F 3 "" H 8350 4150 50 0000 C CNN 1 8350 4150 1 0 0 -1 $EndComp Wire Wire Line 8350 3400 8350 3550 Wire Wire Line 8350 3750 8350 4000 Wire Wire Line 8350 4400 8350 4300 $Comp L GND #PWR031 U 1 1 593D3F2D P 6100 5900 F 0 "#PWR031" H 6100 5650 50 0001 C CNN F 1 "GND" H 6100 5750 50 0000 C CNN F 2 "" H 6100 5900 50 0000 C CNN F 3 "" H 6100 5900 50 0000 C CNN 1 6100 5900 1 0 0 -1 $EndComp $Comp L +3.3V #PWR032 U 1 1 594630A5 P 6600 5000 F 0 "#PWR032" H 6600 4850 50 0001 C CNN F 1 "+3.3V" H 6600 5140 50 0000 C CNN F 2 "" H 6600 5000 50 0000 C CNN F 3 "" H 6600 5000 50 0000 C CNN 1 6600 5000 1 0 0 -1 $EndComp Text Notes 8300 3200 0 60 ~ 0 0.816V * (51k + 10k) / 10k = 4.9776V NoConn ~ 5650 3600 $EndSCHEMATC