Version 4 SHEET 1 1852 700 WIRE 528 -16 352 -16 WIRE 688 -16 528 -16 WIRE 1072 -16 688 -16 WIRE 352 0 352 -16 WIRE 528 0 528 -16 WIRE 1072 80 1072 -16 WIRE 352 96 352 80 WIRE 528 96 528 80 WIRE 688 96 688 -16 WIRE 1024 160 784 160 WIRE 832 224 784 224 WIRE 1072 224 1072 176 WIRE 1072 224 832 224 WIRE 1136 224 1072 224 WIRE 1280 224 1216 224 WIRE 1408 224 1280 224 WIRE 1520 224 1408 224 WIRE 1408 240 1408 224 WIRE 1520 240 1520 224 WIRE 1280 256 1280 224 WIRE 352 288 336 288 WIRE 432 288 416 288 WIRE 832 288 784 288 WIRE 1072 336 1072 224 WIRE 1408 336 1408 304 WIRE 1520 336 1520 320 WIRE 832 352 784 352 WIRE 928 352 832 352 WIRE 1280 368 1280 336 WIRE 1280 368 1248 368 WIRE 1280 384 1280 368 WIRE 256 416 240 416 WIRE 336 416 320 416 WIRE 432 416 416 416 WIRE 1024 416 784 416 WIRE 1072 448 1072 432 WIRE 1248 480 1248 368 WIRE 1248 480 784 480 WIRE 1280 480 1280 464 WIRE 528 560 528 544 WIRE 688 560 688 544 FLAG 528 560 0 FLAG 688 560 0 FLAG 1072 448 0 FLAG 992 352 0 FLAG 1520 336 0 FLAG 1280 480 0 FLAG 1408 336 0 FLAG 240 416 0 FLAG 352 96 0 FLAG 336 288 0 FLAG 352 -16 IN FLAG 1520 224 OUT SYMBOL NMOS 1024 336 R0 SYMATTR InstName Q1 SYMATTR Value RJK0301DPB SYMBOL RES 512 -16 R0 SYMATTR InstName R1 SYMATTR Value 432K SYMBOL res 1264 240 R0 SYMATTR InstName R2 SYMATTR Value 5.11K SYMBOL res 1264 368 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL schottky 816 352 M180 WINDOW 0 39 48 Left 2 WINDOW 3 36 20 Left 2 SYMATTR InstName D1 SYMATTR Value 1N5818 SYMBOL cap 928 368 R270 WINDOW 3 0 32 VBottom 2 WINDOW 0 32 32 VTop 2 SYMATTR Value 4.7µ SYMATTR InstName C1 SYMBOL nmos 1024 80 R0 SYMATTR InstName Q2 SYMATTR Value RJK0305DPB SYMBOL ind 1120 240 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L1 SYMATTR Value .56µ SYMATTR SpiceLine Rpar=1K SYMBOL polcap 1392 240 R0 SYMATTR InstName C2 SYMATTR Value 750µ SYMBOL res 432 400 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 20K SYMBOL cap 320 400 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 120p SYMBOL VOLTAGE 352 -16 R0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL cap 416 272 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value .001µ SYMBOL cap 816 224 R0 WINDOW 0 28 17 Left 2 WINDOW 3 26 48 Left 2 SYMATTR InstName C5 SYMATTR Value .22µ SYMBOL PowerProducts\\LTC3878 608 320 R0 SYMATTR InstName U1 SYMBOL res 1504 224 R0 SYMATTR InstName Rload SYMATTR Value .08 TEXT 1344 496 Left 2 !.tran 2m startup