Version 4 SHEET 1 1096 728 WIRE 64 -48 -16 -48 WIRE 624 -48 64 -48 WIRE -16 -32 -16 -48 WIRE 240 0 208 0 WIRE 368 0 304 0 WIRE 512 0 368 0 WIRE 512 16 512 0 WIRE 624 32 624 -48 WIRE 208 48 208 0 WIRE 368 48 368 0 WIRE -16 64 -16 48 WIRE 64 112 64 -48 WIRE 112 112 64 112 WIRE 480 112 464 112 WIRE 576 112 480 112 WIRE 512 160 512 80 WIRE 624 160 624 128 WIRE 624 160 512 160 WIRE -208 176 -304 176 WIRE 112 176 -128 176 WIRE 480 176 480 112 WIRE 480 176 464 176 WIRE 624 224 624 160 WIRE 624 224 544 224 WIRE 512 240 512 160 WIRE 512 240 464 240 WIRE 624 240 624 224 WIRE 544 304 544 224 WIRE 544 304 464 304 WIRE 624 336 624 320 WIRE 624 336 544 336 WIRE 688 336 624 336 WIRE 800 336 768 336 WIRE 896 336 800 336 WIRE 624 352 624 336 WIRE 800 352 800 336 WIRE 896 352 896 336 WIRE 0 368 -16 368 WIRE 80 368 64 368 WIRE 112 368 80 368 WIRE 544 368 544 336 WIRE 544 368 464 368 WIRE 80 432 80 368 WIRE 112 432 80 432 WIRE 480 432 464 432 WIRE 576 432 480 432 WIRE 800 448 800 416 WIRE 896 448 896 432 WIRE 624 464 624 448 WIRE 480 496 480 432 WIRE 480 496 464 496 WIRE 288 544 288 528 FLAG -16 64 0 FLAG 288 544 0 FLAG -304 176 0 FLAG 624 464 0 FLAG 800 448 0 FLAG 896 448 0 FLAG -16 368 0 FLAG -16 -48 IN FLAG 896 336 OUT SYMBOL voltage -16 -48 R0 SYMATTR InstName V1 SYMATTR Value 30 SYMBOL voltage -112 176 R90 WINDOW 0 -32 56 VBottom 2 WINDOW 3 32 56 VTop 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value PULSE(0 3.3 0 10n 10n 5u 10u) SYMBOL PowerProducts\\LT1158 288 288 R0 SYMATTR InstName U1 SYMBOL schottky 240 16 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value BAT54 SYMATTR Description Diode SYMATTR Type diode SYMBOL nmos 576 32 R0 SYMATTR InstName Q1 SYMATTR Value IRF530 SYMBOL cap 496 80 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C1 SYMATTR Value .1µ SYMBOL nmos 576 352 R0 SYMATTR InstName Q2 SYMATTR Value IRF530 SYMBOL res 608 224 R0 SYMATTR InstName R1 SYMATTR Value 4m SYMBOL ind 672 352 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value 50µ SYMATTR Value2 Rser=10m SYMBOL cap 784 352 R0 SYMATTR InstName C2 SYMATTR Value 100µ SYMATTR Value2 Rser=10m SYMBOL res 880 336 R0 SYMATTR InstName Rload SYMATTR Value 5 SYMBOL cap 64 352 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .1µ TEXT 576 520 Left 2 !.tran 15m startup