Version 4 SHEET 1 9052 3716 WIRE 5696 -1664 5088 -1664 WIRE 5760 -1664 5696 -1664 WIRE 6016 -1664 5840 -1664 WIRE 5088 -1648 5088 -1664 WIRE 6016 -1632 6016 -1664 WIRE 5088 -1552 5088 -1568 WIRE 5968 -1552 5904 -1552 WIRE 5184 -1520 5088 -1520 WIRE 6016 -1520 6016 -1536 WIRE 6016 -1520 5184 -1520 WIRE 6064 -1520 6016 -1520 WIRE 6192 -1520 6064 -1520 WIRE 5088 -1504 5088 -1520 WIRE 5696 -1504 5696 -1664 WIRE 5184 -1488 5184 -1520 WIRE 6064 -1440 6064 -1520 WIRE 6192 -1440 6192 -1520 WIRE 6256 -1424 6240 -1424 WIRE 5696 -1408 5696 -1424 WIRE 5696 -1408 5376 -1408 WIRE 5696 -1392 5696 -1408 WIRE 6416 -1376 6240 -1376 WIRE 6528 -1376 6496 -1376 WIRE 5184 -1344 5184 -1408 WIRE 5296 -1344 5184 -1344 WIRE 5520 -1344 5296 -1344 WIRE 5552 -1344 5520 -1344 WIRE 5904 -1344 5904 -1552 WIRE 5904 -1344 5840 -1344 WIRE 5376 -1264 5376 -1408 WIRE 5520 -1264 5520 -1344 WIRE 5552 -1264 5520 -1264 WIRE 5952 -1264 5840 -1264 WIRE 6064 -1264 6064 -1376 WIRE 6064 -1264 6032 -1264 WIRE 6192 -1264 6192 -1360 WIRE 6192 -1264 6064 -1264 WIRE 6320 -1264 6192 -1264 WIRE 5184 -1216 5184 -1344 WIRE 5552 -1184 5456 -1184 WIRE 5904 -1184 5840 -1184 WIRE 6144 -1184 5904 -1184 WIRE 5296 -1152 5296 -1344 WIRE 5552 -1104 5488 -1104 WIRE 6016 -1104 5840 -1104 WIRE 6192 -1104 6192 -1168 WIRE 6192 -1104 6096 -1104 WIRE 5488 -1088 5488 -1104 WIRE 5904 -1088 5904 -1120 WIRE 5184 -1008 5184 -1136 WIRE 5184 -1008 5088 -1008 WIRE 5296 -1008 5296 -1088 WIRE 5296 -1008 5184 -1008 WIRE 5376 -1008 5376 -1200 WIRE 5376 -1008 5296 -1008 WIRE 5456 -1008 5456 -1120 WIRE 5456 -1008 5376 -1008 WIRE 5488 -1008 5488 -1024 WIRE 5488 -1008 5456 -1008 WIRE 5696 -1008 5696 -1056 WIRE 5696 -1008 5488 -1008 WIRE 5904 -1008 5696 -1008 WIRE 6192 -1008 6192 -1024 WIRE 6192 -1008 5904 -1008 WIRE 5088 -992 5088 -1008 WIRE 5088 -896 5088 -912 FLAG 6320 -1264 OUT FLAG 5088 -1504 0 FLAG 5088 -896 0 FLAG 5088 -1552 0 FLAG 6016 -1664 EN FLAG 6528 -1376 0 FLAG 6256 -1424 0 SYMBOL cap 5440 -1120 M180 WINDOW 0 31 47 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C1 SYMATTR Value 5.6n SYMBOL cap 5472 -1088 R0 WINDOW 0 31 16 Left 2 WINDOW 3 30 51 Left 2 SYMATTR InstName C2 SYMATTR Value 3.3n SYMBOL res 5168 -1504 R0 SYMATTR InstName R2 SYMATTR Value 34K SYMBOL res 5168 -1232 R0 SYMATTR InstName R3 SYMATTR Value 32.4K SYMBOL cap 5888 -1184 R0 WINDOW 0 33 22 Left 2 SYMATTR InstName C3 SYMATTR Value 10n SYMBOL res 5680 -1520 R0 SYMATTR InstName R4 SYMATTR Value 470 SYMBOL cap 5360 -1264 R0 WINDOW 3 26 59 Left 2 SYMATTR Value .1µ SYMATTR InstName C4 SYMBOL cap 6048 -1440 R0 SYMATTR InstName C5 SYMATTR Value 100µ SYMBOL cap 5280 -1152 R0 SYMATTR Value 1n SYMATTR InstName C6 SYMBOL res 6048 -1280 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 75K SYMBOL res 6176 -1120 R0 SYMATTR InstName R7 SYMATTR Value 10m SYMBOL voltage 5088 -1008 R0 SYMATTR InstName V1 SYMATTR Value -5.2 SYMBOL res 5888 -1104 R0 WINDOW 3 36 71 Left 2 SYMATTR Value 10 SYMATTR InstName R8 SYMBOL nmos 6144 -1264 R0 SYMATTR InstName Q1 SYMATTR Value IRF7413 SYMBOL LTC4214-2 5696 -1216 R0 SYMATTR InstName U1 SYMBOL voltage 5088 -1664 R0 SYMATTR InstName V2 SYMATTR Value 3.3 SYMBOL res 5856 -1680 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R9 SYMATTR Value 2K SYMBOL nmos 5968 -1632 R0 SYMATTR InstName Q2 SYMATTR Value BSS123 SYMBOL res 6112 -1120 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R5 SYMATTR Value 22 SYMBOL sw 6192 -1456 M0 WINDOW 0 -12 9 Right 2 WINDOW 3 -12 102 Right 2 SYMATTR InstName S1 SYMATTR Value SLD SYMBOL voltage 6400 -1376 R270 WINDOW 123 -74 56 VBottom 2 WINDOW 39 -53 56 VBottom 2 WINDOW 0 32 56 VTop 2 WINDOW 3 -32 56 VBottom 2 SYMATTR InstName V3 SYMATTR Value PULSE(0 1 10m 100n 100n 5m 10) TEXT 6304 -952 Left 2 !.tran 25m startup TEXT 5576 -936 Left 2 !.model SLD SW(Ron=100m Roff=1K Vt=.5 Vh=-.3)