Version 4
SHEET 1 920 760
WIRE 96 -240 -64 -240
WIRE 192 -240 96 -240
WIRE 288 -240 192 -240
WIRE 304 -240 288 -240
WIRE 448 -240 384 -240
WIRE 544 -240 528 -240
WIRE 592 -240 544 -240
WIRE 704 -240 656 -240
WIRE 768 -240 704 -240
WIRE -64 -224 -64 -240
WIRE 768 -224 768 -240
WIRE 96 -192 96 -240
WIRE 192 -192 192 -240
WIRE 288 -192 288 -240
WIRE 384 -192 384 -240
WIRE 768 -144 768 -160
WIRE -64 -128 -64 -144
WIRE 32 -128 16 -128
WIRE 544 -128 544 -240
WIRE 544 -128 448 -128
WIRE 32 -32 16 -32
WIRE 464 -32 448 -32
WIRE 496 48 464 48
WIRE 576 48 496 48
WIRE 704 48 704 -240
WIRE 704 48 656 48
WIRE 16 64 16 -32
WIRE 32 64 16 64
WIRE 464 64 464 48
WIRE 464 64 448 64
WIRE 16 160 16 64
WIRE 32 160 16 160
WIRE 704 160 704 48
WIRE 704 160 448 160
WIRE 704 256 704 240
WIRE 704 256 448 256
WIRE 704 336 704 256
WIRE -48 352 -64 352
WIRE 32 352 16 352
WIRE 656 352 448 352
WIRE 464 448 448 448
WIRE 704 448 704 432
WIRE 704 528 704 512
WIRE 464 544 464 448
WIRE 464 544 448 544
WIRE 480 544 464 544
WIRE 560 544 544 544
WIRE 192 624 192 608
WIRE 192 624 112 624
WIRE 288 624 288 608
WIRE 384 624 384 608
WIRE 112 640 112 624
WIRE 112 720 112 704
WIRE 288 720 288 704
WIRE 384 720 384 688
FLAG 464 -32 0
FLAG 768 -144 0
FLAG -64 -128 0
FLAG 16 -128 0
FLAG -64 352 0
FLAG 112 720 0
FLAG 288 720 0
FLAG 384 720 0
FLAG 560 544 0
FLAG 704 528 0
FLAG 496 128 0
FLAG -64 -240 IN
FLAG 768 -240 OUT
SYMBOL PowerProducts\\LT3952 240 208 R0
SYMATTR InstName U1
SYMBOL voltage -64 -240 R0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 288 -224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 15m
SYMBOL ind 432 -224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 10µ
SYMATTR SpiceLine Rser=.1
SYMBOL schottky 592 -224 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMATTR Value MBRS1100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 752 -224 R0
WINDOW 123 25 58 Left 2
WINDOW 3 38 34 Left 2
SYMATTR Value2 x2
SYMATTR Value 2.2µ
SYMATTR InstName C1
SYMATTR SpiceLine Rser=25m
SYMBOL cap 16 336 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 1µ
SYMBOL cap 96 640 R0
WINDOW 39 24 59 Left 2
WINDOW 3 38 32 Left 2
SYMATTR SpiceLine Rser=3.65K
SYMATTR Value 8.2n
SYMATTR InstName C3
SYMBOL res 272 608 R0
SYMATTR InstName R2
SYMATTR Value 90.9K
SYMBOL cap 368 624 R0
SYMATTR InstName C4
SYMATTR Value .005µ
SYMBOL cap 480 528 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 4.7µ
SYMBOL LED 688 448 R0
WINDOW 123 39 97 Left 2
SYMATTR Value2 n=17
SYMATTR InstName D2
SYMATTR Value LXHL-BW02
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL pmos 656 432 M180
WINDOW 0 60 76 Left 2
WINDOW 3 59 40 Left 2
SYMATTR InstName M1
SYMATTR Value Si7113DN
SYMBOL res 688 144 R0
SYMATTR InstName R3
SYMATTR Value .75
SYMBOL res 480 32 R0
SYMATTR InstName R4
SYMATTR Value 21.5K
SYMBOL res 672 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1Meg
TEXT 608 656 Left 2 !.tran 2m startup