Version 4
SHEET 1 1344 680
WIRE -416 -288 -432 -288
WIRE -320 -288 -416 -288
WIRE -128 -288 -320 -288
WIRE 0 -288 -128 -288
WIRE 32 -288 0 -288
WIRE 128 -288 112 -288
WIRE 208 -288 128 -288
WIRE 448 -288 304 -288
WIRE 624 -288 448 -288
WIRE 848 -288 624 -288
WIRE 960 -288 848 -288
WIRE 1040 -288 960 -288
WIRE 1072 -288 1040 -288
WIRE -432 -240 -432 -288
WIRE 1072 -240 1072 -288
WIRE 848 -208 848 -288
WIRE 960 -208 960 -288
WIRE 288 -192 288 -240
WIRE 624 -192 624 -288
WIRE -432 -144 -432 -160
WIRE -320 -128 -320 -288
WIRE 960 -112 960 -144
WIRE 1072 -112 1072 -160
WIRE -128 -80 -128 -288
WIRE 0 -80 0 -288
WIRE 128 -80 128 -288
WIRE 288 -80 288 -112
WIRE 448 -80 448 -288
WIRE 624 -80 624 -112
WIRE -320 16 -320 -48
WIRE -208 16 -320 16
WIRE -176 16 -208 16
WIRE 848 16 848 -128
WIRE 848 16 752 16
WIRE 848 48 848 16
WIRE -320 80 -320 16
WIRE -208 112 -208 16
WIRE -176 112 -208 112
WIRE 848 160 848 128
WIRE -320 208 -320 160
WIRE -176 208 -320 208
WIRE -320 240 -320 208
WIRE -320 368 -320 320
WIRE 176 384 176 352
WIRE 320 384 320 352
WIRE 320 384 176 384
WIRE 480 384 480 352
WIRE 640 384 640 352
WIRE 320 400 320 384
WIRE -96 496 -96 352
WIRE 32 496 32 352
WIRE 32 496 -96 496
WIRE 320 496 320 464
WIRE 320 496 32 496
WIRE 480 496 480 448
WIRE 480 496 320 496
WIRE 640 496 640 448
WIRE 640 496 480 496
WIRE 32 528 32 496
FLAG 848 160 0
FLAG 32 528 0
FLAG -320 368 0
FLAG -432 -144 0
FLAG 960 -112 0
FLAG -416 -288 IN
FLAG 1040 -288 OUT
FLAG 1072 -112 0
SYMBOL LTC4237 288 112 R0
SYMATTR InstName U1
SYMBOL voltage -432 -256 R0
SYMATTR InstName V1
SYMATTR Value 48
SYMBOL res 128 -304 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 2m
SYMBOL nmos 208 -240 R270
WINDOW 0 104 -32 VRight 2
WINDOW 3 75 -30 VRight 2
SYMATTR InstName M1
SYMATTR Value PSMN3R7-100BSE
SYMBOL res 272 -208 R0
SYMATTR InstName R2
SYMATTR Value 10
SYMBOL res 608 -208 R0
SYMATTR InstName R3
SYMATTR Value 360k
SYMBOL cap 944 -208 R0
SYMATTR InstName C1
SYMATTR Value 220µ
SYMBOL res 832 -224 R0
SYMATTR InstName R4
SYMATTR Value 62k
SYMBOL res 832 32 R0
SYMATTR InstName R5
SYMATTR Value 5.23k
SYMBOL res -336 -144 R0
SYMATTR InstName R6
SYMATTR Value 93.1k
SYMBOL res -336 64 R0
SYMATTR InstName R7
SYMATTR Value 3.01k
SYMBOL res -336 224 R0
SYMATTR InstName R8
SYMATTR Value 4.22k
SYMBOL cap 304 400 R0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL cap 464 384 R0
SYMATTR InstName C3
SYMATTR Value 0.15µ
SYMBOL cap 624 384 R0
SYMATTR InstName C4
SYMATTR Value 68n
SYMBOL res 1056 -256 R0
SYMATTR InstName Rload
SYMATTR Value 4.87
TEXT -464 552 Left 2 !.tran 100m startup