Version 4
SHEET 1 1040 724
WIRE -32 -336 -192 -336
WIRE -16 -336 -32 -336
WIRE 448 -336 432 -336
WIRE 496 -336 448 -336
WIRE 592 -336 496 -336
WIRE -192 -320 -192 -336
WIRE 496 -320 496 -336
WIRE 592 -320 592 -336
WIRE -32 -240 -32 -336
WIRE -16 -240 -32 -240
WIRE 448 -240 448 -336
WIRE 448 -240 432 -240
WIRE -192 -224 -192 -240
WIRE 496 -224 496 -256
WIRE 592 -224 592 -240
WIRE -112 -144 -128 -144
WIRE -32 -144 -48 -144
WIRE -16 -144 -32 -144
WIRE 448 -144 432 -144
WIRE -32 -48 -32 -144
WIRE -16 -48 -32 -48
WIRE 448 -48 432 -48
WIRE -16 48 -32 48
WIRE 448 48 432 48
WIRE -32 144 -32 48
WIRE -16 144 -32 144
WIRE 448 144 432 144
WIRE -16 240 -32 240
WIRE 448 240 448 144
WIRE 448 240 432 240
WIRE -16 336 -32 336
WIRE 448 336 432 336
WIRE 464 336 448 336
WIRE 560 336 544 336
WIRE -112 432 -128 432
WIRE -16 432 -32 432
WIRE 448 432 448 336
WIRE 448 432 432 432
WIRE -112 528 -128 528
WIRE -16 528 -48 528
WIRE 448 528 432 528
WIRE -16 624 -32 624
WIRE 448 624 432 624
WIRE 80 704 80 688
WIRE 208 704 208 688
WIRE 336 704 336 688
FLAG 80 704 0
FLAG 208 704 0
FLAG 336 704 0
FLAG 496 -224 0
FLAG 592 -336 OUT
FLAG -128 -144 0
FLAG -192 -224 0
FLAG -128 432 0
FLAG 560 336 0
FLAG 592 -224 0
FLAG 448 624 0
FLAG 448 528 0
FLAG -32 336 0
FLAG -32 624 0
FLAG -128 528 0
SYMBOL PowerProducts\\LTM4653 208 192 R0
SYMATTR InstName U1
SYMBOL cap 480 -320 R0
SYMATTR InstName C1
SYMATTR Value 20µ
SYMBOL cap -48 -160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 4.7µ
SYMBOL voltage -192 -336 R0
SYMATTR InstName V1
SYMATTR Value 43
SYMBOL res -16 416 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 124K
SYMBOL res 448 320 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 481K
SYMBOL res 576 -336 R0
SYMATTR InstName R4
SYMATTR Value 24
SYMBOL cap -48 512 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
WINDOW 39 58 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 10n
SYMATTR SpiceLine Rser=499
TEXT 552 592 Left 2 !.tran 5m startup\n.softstart .1 ; shortens internal softstart time