Version 4 SHEET 1 1324 1040 WIRE -160 -112 -288 -112 WIRE 48 -112 -160 -112 WIRE 528 -112 48 -112 WIRE 656 -112 528 -112 WIRE -288 -96 -288 -112 WIRE 528 -96 528 -112 WIRE -288 0 -288 -16 WIRE -160 0 -160 -112 WIRE 528 0 528 -16 WIRE 704 0 528 0 WIRE 848 0 768 0 WIRE 896 0 848 0 WIRE 992 0 896 0 WIRE 528 16 528 0 WIRE 992 16 992 0 WIRE 48 32 48 -112 WIRE 192 32 192 16 WIRE 336 32 336 16 WIRE 896 32 896 0 WIRE -160 96 -160 80 WIRE -32 96 -160 96 WIRE 480 96 416 96 WIRE -160 112 -160 96 WIRE 896 128 896 96 WIRE 992 128 992 96 WIRE 656 144 656 -112 WIRE 528 192 528 112 WIRE 528 192 416 192 WIRE -160 208 -160 192 WIRE 528 208 528 192 WIRE -32 288 -48 288 WIRE 432 288 416 288 WIRE 528 304 528 288 WIRE 656 304 656 224 WIRE 736 304 656 304 WIRE 848 304 848 0 WIRE 848 304 800 304 WIRE 608 384 416 384 WIRE -128 480 -144 480 WIRE -32 480 -48 480 WIRE 656 480 656 400 WIRE 656 480 416 480 WIRE 656 496 656 480 WIRE -32 576 -48 576 WIRE 432 576 416 576 WIRE 848 576 848 304 WIRE 656 592 656 576 WIRE 848 672 848 656 WIRE 848 672 416 672 WIRE 848 688 848 672 WIRE 608 768 416 768 WIRE 848 784 848 768 WIRE -32 864 -48 864 WIRE 432 864 416 864 WIRE 48 944 48 928 WIRE 336 944 336 928 FLAG 48 944 0 FLAG -144 480 0 FLAG 848 784 0 FLAG -160 208 0 FLAG -288 0 0 FLAG 896 128 0 FLAG 992 128 0 FLAG 528 304 0 FLAG 192 -48 0 FLAG 992 0 OUT FLAG 336 944 0 FLAG 496 864 0 FLAG -48 288 0 FLAG -48 576 0 FLAG -48 864 0 FLAG 336 -48 0 FLAG 672 768 0 FLAG 432 288 0 FLAG 432 576 0 FLAG 656 592 0 FLAG -288 -112 IN SYMBOL nmos 480 16 R0 WINDOW 3 58 65 Left 2 SYMATTR Value Si7370DP SYMATTR InstName Q1 SYMBOL ind 512 -112 R0 SYMATTR InstName L1 SYMATTR Value 19.4µ SYMATTR SpiceLine Rser=5m Rpar=5K SYMBOL schottky 704 16 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D1 SYMATTR Value PDS760 SYMATTR Description Diode SYMATTR Type diode SYMBOL res -32 464 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R1 SYMATTR Value 66.5K SYMBOL res 832 560 R0 SYMATTR InstName R2 SYMATTR Value 475K SYMBOL res 832 672 R0 SYMATTR InstName R3 SYMATTR Value 12.4K SYMBOL res -176 -16 R0 SYMATTR InstName R4 SYMATTR Value 84.5K SYMBOL res -176 96 R0 SYMATTR InstName R5 SYMATTR Value 24.9K SYMBOL voltage -288 -112 R0 SYMATTR InstName V1 SYMATTR Value 10 SYMBOL cap 880 32 R0 SYMATTR InstName C1 SYMATTR Value 100µ SYMATTR SpiceLine Rser=10m SYMBOL res 512 192 R0 SYMATTR InstName R6 SYMATTR Value 6m SYMBOL cap 176 -48 R0 WINDOW 0 35 14 Left 2 WINDOW 3 35 59 Left 2 SYMATTR InstName C2 SYMATTR Value 4.7µ SYMBOL cap 496 848 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value .002µ SYMBOL cap 320 -48 R0 WINDOW 0 37 16 Left 2 WINDOW 3 33 58 Left 2 SYMATTR InstName C4 SYMATTR Value .001µ SYMBOL cap 672 752 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 WINDOW 39 59 29 VTop 2 SYMATTR InstName C5 SYMATTR Value .01µ SYMATTR SpiceLine Rser=68.1K Cpar=100p SYMBOL ind 640 128 R0 SYMATTR InstName L2 SYMATTR Value 19.4µ SYMATTR SpiceLine Rser=5m Rpar=5K SYMBOL res 640 480 R0 SYMATTR InstName R7 SYMATTR Value 6m SYMBOL nmos 608 304 R0 WINDOW 3 55 86 Left 2 SYMATTR Value Si7370DP SYMATTR InstName Q2 SYMBOL schottky 736 320 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName D2 SYMATTR Value PDS760 SYMATTR Description Diode SYMATTR Type diode SYMBOL PowerProducts\\LTC3862-1 192 432 R0 SYMATTR InstName U1 SYMBOL res 976 0 R0 SYMATTR InstName Rload SYMATTR Value 20 TEXT 832 872 Left 2 !.tran 1.5m startup