Working the switcher component design.

trunk/PowerLock EL/Simulations/LT3690_DC1520A.asc

@@ -1,18 +1,16 @@
 Version 4
 SHEET 1 2020 1012
-WIRE -208 16 -320 16
-WIRE -128 16 -208 16
-WIRE -96 16 -128 16
-WIRE 96 16 -96 16
-WIRE -320 32 -320 16
-WIRE -208 32 -208 16
+WIRE -448 16 -544 16
+WIRE -128 16 -448 16
+WIRE 96 16 -128 16
+WIRE -448 32 -448 16
 WIRE 96 32 96 16
-WIRE -96 80 -96 16
-WIRE -64 80 -96 80
+WIRE -192 80 -336 80
+WIRE -64 80 -192 80
 WIRE 320 80 256 80
 WIRE 560 80 400 80
-WIRE -320 128 -320 112
-WIRE -208 128 -208 96
+WIRE -544 176 -544 16
+WIRE -336 176 -336 80
 WIRE -128 176 -128 16
 WIRE -64 176 -128 176
 WIRE 560 176 560 80
@@ -20,6 +18,8 @@ WIRE 560 176 256 176
 WIRE -144 272 -176 272
 WIRE -64 272 -80 272
 WIRE 288 272 256 272
+WIRE -544 368 -544 256
+WIRE -336 368 -336 256
 WIRE -160 368 -176 368
 WIRE -64 368 -80 368
 WIRE 288 368 288 336
@@ -29,13 +29,14 @@ WIRE 448 368 432 368
 WIRE 560 368 560 176
 WIRE 560 368 448 368
 WIRE 656 368 560 368
+WIRE 864 368 656 368
 WIRE 448 384 448 368
 WIRE 560 384 560 368
-WIRE 656 384 656 368
+WIRE 864 384 864 368
 WIRE 448 464 256 464
 WIRE 448 480 448 464
 WIRE 560 480 560 448
-WIRE 656 480 656 464
+WIRE 656 544 656 512
 WIRE -240 560 -256 560
 WIRE -160 560 -176 560
 WIRE -64 560 -80 560
@@ -47,14 +48,17 @@ FLAG 96 624 0
 FLAG -176 368 0
 FLAG 448 576 0
 FLAG 560 480 0
-FLAG 656 480 0
-FLAG -320 128 0
-FLAG -320 16 IN
+FLAG 656 544 0
+FLAG -544 368 0
+FLAG -544 16 IN
 FLAG 656 368 OUT
-FLAG -208 128 0
+FLAG -448 96 0
 FLAG -176 272 0
 FLAG -256 560 0
 FLAG 352 560 0
+FLAG -336 368 0
+FLAG -192 80 Enable
+FLAG 864 464 0
 SYMBOL ind 336 384 R270
 WINDOW 0 32 56 VTop 2
 WINDOW 3 5 56 VBottom 2
@@ -62,31 +66,37 @@ SYMATTR InstName L2
 SYMATTR Value 3.3<EFBFBD>
 SYMBOL res 432 368 R0
 SYMATTR InstName R4
-SYMATTR Value 316K
+SYMATTR Value 348K
+SYMATTR SpiceLine tol=1 pwr=.1
 SYMBOL res 432 464 R0
 SYMATTR InstName R5
-SYMATTR Value 102K
+SYMATTR Value 38.3K
+SYMATTR SpiceLine tol=1 pwr=.1
 SYMBOL res -64 352 R90
 WINDOW 0 0 56 VBottom 2
 WINDOW 3 32 56 VTop 2
 SYMATTR InstName R6
-SYMATTR Value 45.3K
+SYMATTR Value 73.2K
+SYMATTR SpiceLine tol=1 pwr=.1
 SYMBOL cap 544 384 R0
 WINDOW 3 24 60 Left 2
 SYMATTR Value 47<34>
 SYMATTR InstName C4
-SYMBOL res 640 368 R0
+SYMBOL res 640 416 R0
 SYMATTR InstName Rload
-SYMATTR Value 3.3
+SYMATTR Value 4
+SYMATTR SpiceLine tol=1 pwr=16
 SYMBOL cap 272 272 R0
 SYMATTR InstName C5
 SYMATTR Value 0.68<EFBFBD>
-SYMBOL voltage -320 16 R0
+SYMBOL voltage -544 160 R0
 WINDOW 123 0 0 Left 2
 WINDOW 39 0 0 Left 2
+WINDOW 3 -399 171 Left 2
+SYMATTR Value PULSE(9 36 .8ms .2ms .2ms 1.5ms)
 SYMATTR InstName V1
-SYMATTR Value 36
-SYMBOL cap -224 32 R0
+SYMBOL cap -464 32 R0
+WINDOW 3 41 31 Left 2
 SYMATTR InstName C1
 SYMATTR Value 10<31>
 SYMBOL PowerProducts\\LT3690 96 272 R0
@@ -116,6 +126,17 @@ WINDOW 0 32 32 VTop 2
 WINDOW 3 0 32 VBottom 2
 SYMATTR InstName C3
 SYMATTR Value 1000p
+SYMBOL voltage -336 160 R0
+WINDOW 3 -183 279 Left 2
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName V2
+SYMATTR Value PULSE(0 3 .5ms 0.001us 0.001us 3ms)
+SYMBOL current 864 384 R0
+WINDOW 123 0 0 Left 2
+WINDOW 39 0 0 Left 2
+SYMATTR InstName I1
+SYMATTR Value PULSE(0 2 1.5ms 0 0 .5ms)
 TEXT -448 632 Left 2 ;Note:\n  If the simulation model is not found please update with the "Sync Release" command from the "Tools" menu.\n  It remains the customer's responsibility to verify proper and reliable operation in the actual application.\n  Component substitution and printed circuit board layout may significantly affect circuit performance or reliability.\n  Contact your local sales representative for assistance. This circuit is distributed to customers only for use with LTC parts.\n  Copyright <20> 2011 Linear Technology Inc. All rights reserved.
 TEXT 168 0 Bottom 2 ;LT3690 - 36V, 4A. 1.5MHz Synchronous Step-Down Switching Regulator with 70<37>A Quiescent Current\nInput: 12V       Output: 3.3V @ 4A
-TEXT 568 600 Left 2 !.tran 800u startup
+TEXT 568 600 Left 2 !.tran 5ms startup