Version 4
SHEET 1 1416 792
WIRE 176 -592 -256 -592
WIRE 736 -592 176 -592
WIRE -144 -576 -192 -576
WIRE 304 -576 -144 -576
WIRE 592 -576 304 -576
WIRE -144 -560 -144 -576
WIRE 176 -544 176 -592
WIRE 304 -544 304 -576
WIRE -144 -480 -144 -496
WIRE -48 -480 -64 -480
WIRE 32 -480 16 -480
WIRE -512 -304 -512 -320
WIRE 736 -272 736 -592
WIRE -512 -208 -512 -224
WIRE -336 -208 -512 -208
WIRE -512 -192 -512 -208
WIRE -336 -192 -336 -208
WIRE 32 -192 -336 -192
WIRE 688 -192 560 -192
WIRE -192 -176 -192 -576
WIRE 592 -176 592 -576
WIRE -512 -96 -512 -112
WIRE -256 -96 -256 -592
WIRE -256 -96 -512 -96
WIRE -192 -96 -192 -112
WIRE 32 -96 -192 -96
WIRE 592 -96 592 -112
WIRE 592 -96 560 -96
WIRE -512 -80 -512 -96
WIRE -256 -80 -256 -96
WIRE 592 -80 592 -96
WIRE 32 0 -208 0
WIRE 592 0 592 -16
WIRE 592 0 560 0
WIRE 736 0 736 -176
WIRE 736 0 592 0
WIRE 768 0 736 0
WIRE 912 0 848 0
WIRE 928 0 912 0
WIRE 1024 0 1008 0
WIRE 1056 0 1024 0
WIRE 1088 0 1056 0
WIRE 1184 0 1088 0
WIRE -512 16 -512 -16
WIRE -192 16 -192 -96
WIRE 736 16 736 0
WIRE 1088 16 1088 0
WIRE 1184 16 1184 0
WIRE -496 96 -576 96
WIRE -480 96 -496 96
WIRE -384 96 -400 96
WIRE -368 96 -384 96
WIRE -256 96 -256 16
WIRE -256 96 -288 96
WIRE -192 96 -192 80
WIRE -192 96 -256 96
WIRE 32 96 -192 96
WIRE 688 96 560 96
WIRE -576 112 -576 96
WIRE -256 112 -256 96
WIRE 1088 112 1088 80
WIRE 1184 112 1184 96
WIRE 736 128 736 112
WIRE 32 192 -208 192
WIRE 608 192 560 192
WIRE 912 192 912 0
WIRE 912 192 608 192
WIRE -576 208 -576 192
WIRE 608 208 608 192
WIRE -256 224 -256 208
WIRE -384 288 -384 96
WIRE -240 288 -384 288
WIRE 32 288 -240 288
WIRE 608 288 608 272
WIRE 608 288 560 288
WIRE 1024 288 1024 0
WIRE 1024 288 608 288
WIRE 1056 288 1056 0
WIRE -240 304 -240 288
WIRE -496 384 -496 96
WIRE -240 384 -240 368
WIRE -240 384 -496 384
WIRE 32 384 -240 384
WIRE 1056 384 1056 368
WIRE 1056 384 560 384
WIRE 1056 400 1056 384
WIRE -96 480 -112 480
WIRE 32 480 -32 480
WIRE 592 480 560 480
WIRE 672 480 656 480
WIRE 1056 496 1056 480
WIRE 144 560 144 544
WIRE 304 560 304 544
WIRE 464 560 464 544
FLAG 144 560 0
FLAG 304 560 0
FLAG 464 560 0
FLAG 736 128 0
FLAG 1088 112 0
FLAG 1184 112 0
FLAG 1056 496 0
FLAG 672 480 0
FLAG 1184 0 OUT
FLAG -576 208 0
FLAG -256 224 0
FLAG -512 16 0
FLAG -512 -320 0
FLAG -112 480 0
FLAG -576 96 IN
FLAG -144 -480 0
FLAG -64 -480 0
FLAG 176 -592 MID
SYMBOL PowerProducts\\LTC7812 304 0 R0
SYMATTR InstName U1
SYMBOL nmos 688 -272 R0
SYMATTR InstName Q1
SYMATTR Value BSZ097N04LS
SYMBOL nmos 688 16 R0
SYMATTR InstName Q2
SYMATTR Value BSZ097N04LS
SYMBOL cap 576 -80 R0
SYMATTR InstName C1
SYMATTR Value .1µ
SYMBOL schottky 576 -176 R0
SYMATTR InstName D1
SYMATTR Value BAT54
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL ind 752 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 4.9µ
SYMATTR SpiceLine Rser=4m
SYMBOL res 912 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 6m
SYMBOL cap 1072 16 R0
SYMATTR InstName C2
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=5m
SYMBOL cap 592 208 R0
SYMATTR InstName C3
SYMATTR Value .001µ
SYMBOL res 1040 384 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 357K
SYMBOL res 1040 496 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R3
SYMATTR Value 68.1K
SYMBOL cap 592 464 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 53 32 VTop 2
WINDOW 123 74 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 1500p
SYMATTR SpiceLine Rser=15K
SYMATTR Value2 Cpar=100p
SYMBOL res 1168 0 R0
SYMATTR InstName Rload
SYMATTR Value 1
SYMBOL voltage -576 96 R0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL ind -384 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 1.2µ
SYMBOL res -384 112 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 2m
SYMBOL nmos -208 -80 M0
SYMATTR InstName Q3
SYMATTR Value BSC027N04LS
SYMBOL nmos -208 112 M0
WINDOW 0 -6 33 Right 2
WINDOW 3 18 102 Right 2
SYMATTR InstName Q4
SYMATTR Value BSC018N04LS
SYMBOL cap -528 -80 R0
SYMATTR InstName C5
SYMATTR Value 220µ
SYMATTR SpiceLine Rser=1m
SYMBOL cap -208 16 R0
SYMATTR InstName C6
SYMATTR Value .1µ
SYMBOL res -528 -208 R0
SYMATTR InstName R5
SYMATTR Value 499K
SYMBOL res -528 -320 R0
SYMATTR InstName R6
SYMATTR Value 68.1K
SYMBOL cap -256 304 R0
SYMATTR InstName C7
SYMATTR Value .001µ
SYMBOL schottky -208 -176 R0
WINDOW 3 24 65 Left 2
SYMATTR Value BAT54
SYMATTR InstName D2
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap -32 464 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 57 70 VTop 2
SYMATTR InstName C8
SYMATTR Value .01µ
SYMATTR SpiceLine Rser=3.6K Cpar=820p
SYMBOL cap -160 -496 M180
WINDOW 0 24 64 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C9
SYMATTR Value 4.7µ
SYMBOL cap 16 -496 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C11
SYMATTR Value .001µ
TEXT 1192 528 Left 2 !.tran 1m startup