EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 7 7
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:+12V #PWR073
U 1 1 60E341D3
P 5050 1800
F 0 "#PWR073" H 5050 1650 50  0001 C CNN
F 1 "+12V" H 5065 1973 50  0000 C CNN
F 2 "" H 5050 1800 50  0001 C CNN
F 3 "" H 5050 1800 50  0001 C CNN
	1    5050 1800
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR074
U 1 1 60E344EB
P 5050 3700
F 0 "#PWR074" H 5050 3450 50  0001 C CNN
F 1 "GND" H 5055 3527 50  0000 C CNN
F 2 "" H 5050 3700 50  0001 C CNN
F 3 "" H 5050 3700 50  0001 C CNN
	1    5050 3700
	1    0    0    -1  
$EndComp
Text HLabel 6350 3650 3    50   Input ~ 0
12V_OUT
$Comp
L SI4425DDY:SI4425DDY-T1-GE3 Q?
U 1 1 60F5F01A
P 5850 2500
AR Path="/60C2FE2A/60F5F01A" Ref="Q?"  Part="1" 
AR Path="/60E3407A/60F5F01A" Ref="Q6"  Part="1" 
F 0 "Q6" V 6639 2400 50  0000 C CNN
F 1 "SI4425DDY-T1-GE3" V 6730 2400 50  0000 C CNN
F 2 "SI4425DDY:Vishay-C-06527-09_2006-I-0" H 5850 3000 50  0001 L CNN
F 3 "http://www.vishay.com/docs/64732/si4425dd.pdf" H 5850 3100 50  0001 L CNN
F 4 "Trans" H 5850 3200 50  0001 L CNN "category"
F 5 "-13A" H 5850 3300 50  0001 L CNN "continuous drain current"
F 6 "Discrete Semiconductors" H 5850 3400 50  0001 L CNN "device class L1"
F 7 "Transistors" H 5850 3500 50  0001 L CNN "device class L2"
F 8 "MOSFETs" H 5850 3600 50  0001 L CNN "device class L3"
F 9 "MOSFET P-CH 30V 19.7A 8-SOIC" H 5850 3700 50  0001 L CNN "digikey description"
F 10 "SI4425DDY-T1-GE3CT-ND" H 5850 3800 50  0001 L CNN "digikey part number"
F 11 "-30V" H 5850 3900 50  0001 L CNN "drain to source breakdown voltage"
F 12 "0.0081Ω" H 5850 4000 50  0001 L CNN "drain to source resistance"
F 13 "-30V" H 5850 4100 50  0001 L CNN "drain to source voltage"
F 14 "20V" H 5850 4200 50  0001 L CNN "gate to source voltage"
F 15 "1.75mm" H 5850 4300 50  0001 L CNN "height"
F 16 "2610pF @ -15V" H 5850 4400 50  0001 L CNN "input capacitace at vds"
F 17 "yes" H 5850 4500 50  0001 L CNN "lead free"
F 18 "e8ffa996ad20234c" H 5850 4600 50  0001 L CNN "library id"
F 19 "Vishay" H 5850 4700 50  0001 L CNN "manufacturer"
F 20 "+150°C" H 5850 4800 50  0001 L CNN "max junction temp"
F 21 "MOSFET 30V 19.7A 5.7W 9.8mohm @ 10V" H 5850 4900 50  0001 L CNN "mouser description"
F 22 "781-SI4425DDY-GE3" H 5850 5000 50  0001 L CNN "mouser part number"
F 23 "1" H 5850 5100 50  0001 L CNN "number of P channels"
F 24 "1" H 5850 5200 50  0001 L CNN "number of channels"
F 25 "SO-8" H 5850 5300 50  0001 L CNN "package"
F 26 "2.5W" H 5850 5400 50  0001 L CNN "power dissipation"
F 27 "yes" H 5850 5500 50  0001 L CNN "rohs"
F 28 "0.1mm" H 5850 5600 50  0001 L CNN "standoff height"
F 29 "MOSFET" H 5850 5700 50  0001 L CNN "technology"
F 30 "+150°C" H 5850 5800 50  0001 L CNN "temperature range high"
F 31 "-55°C" H 5850 5900 50  0001 L CNN "temperature range low"
F 32 "-1.2V" H 5850 6000 50  0001 L CNN "threshold vgs"
F 33 "42ns" H 5850 6100 50  0001 L CNN "turn off delay time"
F 34 "12ns" H 5850 6200 50  0001 L CNN "turn on delay time"
	1    5850 2500
	0    -1   -1   0   
$EndComp
$Comp
L Device:Q_NPN_BEC Q5
U 1 1 60F73A02
P 4950 3200
F 0 "Q5" H 5140 3246 50  0000 L CNN
F 1 "PMBT3904" H 5140 3155 50  0000 L CNN
F 2 "" H 5150 3300 50  0001 C CNN
F 3 "~" H 4950 3200 50  0001 C CNN
	1    4950 3200
	1    0    0    -1  
$EndComp
$Comp
L Device:R R116
U 1 1 60F7CC07
P 5050 2250
F 0 "R116" H 5120 2296 50  0000 L CNN
F 1 "10k" H 5120 2205 50  0000 L CNN
F 2 "" V 4980 2250 50  0001 C CNN
F 3 "~" H 5050 2250 50  0001 C CNN
	1    5050 2250
	1    0    0    -1  
$EndComp
$Comp
L Diode:BZX84Cxx D15
U 1 1 60F888E6
P 5350 2250
F 0 "D15" V 5304 2330 50  0000 L CNN
F 1 "BZX584C9V1" V 5395 2330 50  0000 L CNN
F 2 "Diode_SMD:D_SOT-23_ANK" H 5350 2075 50  0001 C CNN
F 3 "https://diotec.com/tl_files/diotec/files/pdf/datasheets/bzx84c2v4.pdf" H 5350 2250 50  0001 C CNN
	1    5350 2250
	0    1    1    0   
$EndComp
$Comp
L Device:R R115
U 1 1 60F8DC46
P 4600 3400
F 0 "R115" V 4807 3400 50  0000 C CNN
F 1 "10k" V 4716 3400 50  0000 C CNN
F 2 "" V 4530 3400 50  0001 C CNN
F 3 "~" H 4600 3400 50  0001 C CNN
	1    4600 3400
	-1   0    0    1   
$EndComp
$Comp
L Device:R R114
U 1 1 60F8FB89
P 4300 3200
F 0 "R114" H 4370 3246 50  0000 L CNN
F 1 "1k" H 4370 3155 50  0000 L CNN
F 2 "" V 4230 3200 50  0001 C CNN
F 3 "~" H 4300 3200 50  0001 C CNN
	1    4300 3200
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C46
U 1 1 60F975CA
P 3950 3400
F 0 "C46" H 4065 3446 50  0000 L CNN
F 1 "47pF" H 4065 3355 50  0000 L CNN
F 2 "" H 3988 3250 50  0001 C CNN
F 3 "~" H 3950 3400 50  0001 C CNN
	1    3950 3400
	1    0    0    -1  
$EndComp
$Comp
L Device:L L2
U 1 1 60F9B28D
P 3600 3200
F 0 "L2" V 3790 3200 50  0000 C CNN
F 1 "150mH" V 3699 3200 50  0000 C CNN
F 2 "" H 3600 3200 50  0001 C CNN
F 3 "~" H 3600 3200 50  0001 C CNN
	1    3600 3200
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6250 2100 6350 2100
Wire Wire Line
	6350 2100 6350 2000
Wire Wire Line
	6350 1800 6250 1800
Wire Wire Line
	6250 1900 6350 1900
Connection ~ 6350 1900
Wire Wire Line
	6350 1900 6350 1800
Wire Wire Line
	6250 2000 6350 2000
Connection ~ 6350 2000
Wire Wire Line
	6350 2000 6350 1900
Wire Wire Line
	5650 1900 5550 1900
Wire Wire Line
	5550 1900 5550 2000
Wire Wire Line
	5550 2100 5650 2100
Wire Wire Line
	5650 2000 5550 2000
Connection ~ 5550 2000
Wire Wire Line
	5550 2000 5550 2100
Wire Wire Line
	5050 2100 5050 2000
Wire Wire Line
	5050 2000 5350 2000
Wire Wire Line
	5350 2100 5350 2000
Connection ~ 5350 2000
Wire Wire Line
	5350 2000 5550 2000
Wire Wire Line
	5050 1800 5050 2000
Connection ~ 5050 2000
Wire Wire Line
	5050 2400 5050 2500
Wire Wire Line
	5050 2500 5350 2500
Wire Wire Line
	5850 2500 5850 2400
Wire Wire Line
	5350 2400 5350 2500
Connection ~ 5350 2500
Wire Wire Line
	5350 2500 5850 2500
$Comp
L Device:R R117
U 1 1 60FAE04E
P 5050 2750
F 0 "R117" H 5120 2796 50  0000 L CNN
F 1 "1k" H 5120 2705 50  0000 L CNN
F 2 "" V 4980 2750 50  0001 C CNN
F 3 "~" H 5050 2750 50  0001 C CNN
	1    5050 2750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5050 2600 5050 2500
Connection ~ 5050 2500
Wire Wire Line
	5050 2900 5050 3000
Wire Wire Line
	5050 3350 5050 3400
Connection ~ 5050 3400
Wire Wire Line
	5050 3400 5050 3600
Wire Wire Line
	4450 3200 4600 3200
Wire Wire Line
	4600 3550 4600 3600
Wire Wire Line
	4600 3600 5050 3600
Connection ~ 5050 3600
Wire Wire Line
	5050 3600 5050 3700
Wire Wire Line
	4600 3250 4600 3200
Connection ~ 4600 3200
Wire Wire Line
	4600 3200 4750 3200
Wire Wire Line
	4150 3200 3950 3200
Wire Wire Line
	3950 3250 3950 3200
Connection ~ 3950 3200
Wire Wire Line
	3950 3200 3750 3200
Wire Wire Line
	3950 3550 3950 3600
Wire Wire Line
	3950 3600 4600 3600
Connection ~ 4600 3600
$Comp
L Device:R R118
U 1 1 60FB945B
P 6350 3050
F 0 "R118" V 6143 3050 50  0000 C CNN
F 1 "1/1%/4W" V 6234 3050 50  0000 C CNN
F 2 "" V 6280 3050 50  0001 C CNN
F 3 "~" H 6350 3050 50  0001 C CNN
	1    6350 3050
	-1   0    0    1   
$EndComp
Text HLabel 3300 3200 0    50   Input ~ 0
12V_SW
Wire Wire Line
	3450 3200 3300 3200
$Comp
L Amplifier_Operational:LMV321 U15
U 1 1 60FC6080
P 8000 2800
F 0 "U15" H 8344 2846 50  0000 L CNN
F 1 "LMV321" H 8344 2755 50  0000 L CNN
F 2 "" H 8000 2800 50  0001 L CNN
F 3 "http://www.ti.com/lit/ds/symlink/lmv324.pdf" H 8000 2800 50  0001 C CNN
	1    8000 2800
	1    0    0    -1  
$EndComp
$Comp
L Device:R R119
U 1 1 60FC6B88
P 7250 2700
F 0 "R119" V 7043 2700 50  0000 C CNN
F 1 "2k" V 7134 2700 50  0000 C CNN
F 2 "" V 7180 2700 50  0001 C CNN
F 3 "~" H 7250 2700 50  0001 C CNN
	1    7250 2700
	0    1    1    0   
$EndComp
$Comp
L Device:R R120
U 1 1 60FCBC80
P 7250 3450
F 0 "R120" V 7043 3450 50  0000 C CNN
F 1 "2k" V 7134 3450 50  0000 C CNN
F 2 "" V 7180 3450 50  0001 C CNN
F 3 "~" H 7250 3450 50  0001 C CNN
	1    7250 3450
	0    1    1    0   
$EndComp
$Comp
L Device:R R121
U 1 1 60FCCF2E
P 8350 3450
F 0 "R121" V 8143 3450 50  0000 C CNN
F 1 "20k" V 8234 3450 50  0000 C CNN
F 2 "" V 8280 3450 50  0001 C CNN
F 3 "~" H 8350 3450 50  0001 C CNN
	1    8350 3450
	0    1    1    0   
$EndComp
$Comp
L Device:C C47
U 1 1 60FDCA77
P 6750 3050
F 0 "C47" H 6865 3096 50  0000 L CNN
F 1 "1000pF" H 6865 3005 50  0000 L CNN
F 2 "" H 6788 2900 50  0001 C CNN
F 3 "~" H 6750 3050 50  0001 C CNN
	1    6750 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7400 2700 7700 2700
Wire Wire Line
	6750 2900 6750 2700
Wire Wire Line
	6750 2700 7100 2700
Wire Wire Line
	6750 3200 6750 3450
Wire Wire Line
	6750 3450 7100 3450
Wire Wire Line
	7400 3450 7600 3450
Wire Wire Line
	7600 3450 7600 2900
Wire Wire Line
	7600 2900 7700 2900
Wire Wire Line
	7600 3450 8200 3450
Connection ~ 7600 3450
Wire Wire Line
	8500 3450 8700 3450
Wire Wire Line
	8700 3450 8700 2800
Wire Wire Line
	8700 2800 8300 2800
$Comp
L power:GND #PWR076
U 1 1 60FE27EF
P 7900 3200
F 0 "#PWR076" H 7900 2950 50  0001 C CNN
F 1 "GND" H 7905 3027 50  0000 C CNN
F 2 "" H 7900 3200 50  0001 C CNN
F 3 "" H 7900 3200 50  0001 C CNN
	1    7900 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	7900 2400 7900 2500
Wire Wire Line
	7900 3100 7900 3200
Wire Wire Line
	8700 2800 9100 2800
Connection ~ 8700 2800
$Comp
L power:+3V3 #PWR075
U 1 1 60FEADD5
P 7900 2000
F 0 "#PWR075" H 7900 1850 50  0001 C CNN
F 1 "+3V3" H 7915 2173 50  0000 C CNN
F 2 "" H 7900 2000 50  0001 C CNN
F 3 "" H 7900 2000 50  0001 C CNN
	1    7900 2000
	1    0    0    -1  
$EndComp
$Comp
L Device:L L5
U 1 1 60FEB56F
P 7900 2250
F 0 "L5" H 7953 2296 50  0000 L CNN
F 1 "220" H 7953 2205 50  0000 L CNN
F 2 "" H 7900 2250 50  0001 C CNN
F 3 "~" H 7900 2250 50  0001 C CNN
	1    7900 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7900 2000 7900 2050
$Comp
L Device:C C48
U 1 1 60FF4D01
P 8250 2250
F 0 "C48" H 8365 2296 50  0000 L CNN
F 1 "10uF" H 8365 2205 50  0000 L CNN
F 2 "" H 8288 2100 50  0001 C CNN
F 3 "~" H 8250 2250 50  0001 C CNN
	1    8250 2250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR077
U 1 1 60FF59CD
P 8250 2450
F 0 "#PWR077" H 8250 2200 50  0001 C CNN
F 1 "GND" H 8255 2277 50  0000 C CNN
F 2 "" H 8250 2450 50  0001 C CNN
F 3 "" H 8250 2450 50  0001 C CNN
	1    8250 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 2100 8250 2050
Wire Wire Line
	8250 2050 7900 2050
Connection ~ 7900 2050
Wire Wire Line
	7900 2050 7900 2100
Wire Wire Line
	8250 2450 8250 2400
Wire Wire Line
	6350 2100 6350 2700
Connection ~ 6350 2100
Wire Wire Line
	6750 2700 6350 2700
Connection ~ 6750 2700
Connection ~ 6350 2700
Wire Wire Line
	6350 2700 6350 2900
Wire Wire Line
	6350 3200 6350 3450
Wire Wire Line
	6750 3450 6350 3450
Connection ~ 6750 3450
Connection ~ 6350 3450
Wire Wire Line
	6350 3450 6350 3650
Text HLabel 9100 2800 2    50   Input ~ 0
12V_CURRENT
$EndSCHEMATC