diff --git a/branches/XC-Based/Microcontroller IO Allocation Tool.xlsm b/branches/XC-Based/Microcontroller IO Allocation Tool.xlsm new file mode 100644 index 0000000..53f2993 Binary files /dev/null and b/branches/XC-Based/Microcontroller IO Allocation Tool.xlsm differ diff --git a/branches/XC-Based/PowerLock Calculations.xls b/branches/XC-Based/PowerLock Calculations.xls new file mode 100644 index 0000000..5ca93a6 Binary files /dev/null and b/branches/XC-Based/PowerLock Calculations.xls differ diff --git a/branches/XC-Based/PowerLock Data Sheet.doc b/branches/XC-Based/PowerLock Data Sheet.doc new file mode 100644 index 0000000..9cbf758 Binary files /dev/null and b/branches/XC-Based/PowerLock Data Sheet.doc differ diff --git a/branches/XC-Based/PowerLock/PowerLock Design Activities.xls b/branches/XC-Based/PowerLock/PowerLock Design Activities.xls new file mode 100644 index 0000000..29f5470 Binary files /dev/null and b/branches/XC-Based/PowerLock/PowerLock Design Activities.xls differ diff --git a/branches/XC-Based/PowerLock/PowerLock System Diagrams.vsd b/branches/XC-Based/PowerLock/PowerLock System Diagrams.vsd new file mode 100644 index 0000000..a4255fa Binary files /dev/null and b/branches/XC-Based/PowerLock/PowerLock System Diagrams.vsd differ diff --git a/branches/XC-Based/PowerLock/PowerLock.brd b/branches/XC-Based/PowerLock/PowerLock.brd new file mode 100644 index 0000000..bd53363 Binary files /dev/null and b/branches/XC-Based/PowerLock/PowerLock.brd differ diff --git a/branches/XC-Based/PowerLock/PowerLock.sch b/branches/XC-Based/PowerLock/PowerLock.sch new file mode 100644 index 0000000..2ac8a80 Binary files /dev/null and b/branches/XC-Based/PowerLock/PowerLock.sch differ diff --git a/branches/XC-Based/PowerLock/Simulations/Analog In Load Dump.asc b/branches/XC-Based/PowerLock/Simulations/Analog In Load Dump.asc new file mode 100644 index 0000000..4af3ca6 --- /dev/null +++ b/branches/XC-Based/PowerLock/Simulations/Analog In Load Dump.asc @@ -0,0 +1,50 @@ +Version 4 +SHEET 1 1032 680 +WIRE 96 96 48 96 +WIRE 240 96 176 96 +WIRE 320 96 240 96 +WIRE 464 96 320 96 +WIRE 560 96 544 96 +WIRE 240 160 240 96 +WIRE 320 160 320 96 +WIRE 48 192 48 96 +WIRE 560 192 560 160 +WIRE 240 272 240 224 +WIRE 320 272 320 240 +FLAG 48 272 0 +FLAG 240 272 0 +FLAG 320 272 0 +FLAG 48 96 Vin +FLAG 320 96 Vout +FLAG 560 272 0 +SYMBOL voltage 48 176 R0 +WINDOW 3 -27 140 Left 2 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V1 +SYMATTR Value EXP(28v 86v 5ms 10ms 35ms 40ms) +SYMBOL res 80 112 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 0 56 VBottom 2 +SYMATTR InstName R1 +SYMATTR Value 100K +SYMBOL res 304 144 R0 +SYMATTR InstName R2 +SYMATTR Value 18K +SYMBOL cap 224 160 R0 +SYMATTR InstName C1 +SYMATTR Value 0.1µF +SYMBOL res 448 112 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 0 56 VBottom 2 +SYMATTR InstName R3 +SYMATTR Value 1R +SYMBOL voltage 560 176 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V2 +SYMATTR Value 5 +SYMBOL diode 544 96 R0 +SYMATTR InstName D1 +TEXT 12 340 Left 0 !.tran 200ms +TEXT 440 8 Left 2 ;Analog Input intrinsic diode and\nsmall R for current measurement diff --git a/branches/XC-Based/PowerLock/Simulations/LT1934_TA03.asc b/branches/XC-Based/PowerLock/Simulations/LT1934_TA03.asc new file mode 100644 index 0000000..3b24e0e --- /dev/null +++ b/branches/XC-Based/PowerLock/Simulations/LT1934_TA03.asc @@ -0,0 +1,99 @@ +Version 4 +SHEET 1 2968 1500 +WIRE 2016 928 1824 928 +WIRE 2080 928 2016 928 +WIRE 2208 928 2144 928 +WIRE 2016 960 2016 928 +WIRE 1824 992 1824 928 +WIRE 1568 1056 1472 1056 +WIRE 1664 1056 1568 1056 +WIRE 1680 1056 1664 1056 +WIRE 2016 1056 2016 1024 +WIRE 2016 1056 1968 1056 +WIRE 2080 1056 2016 1056 +WIRE 2208 1056 2208 928 +WIRE 2208 1056 2160 1056 +WIRE 2304 1056 2208 1056 +WIRE 2400 1056 2304 1056 +WIRE 2496 1056 2400 1056 +WIRE 1472 1072 1472 1056 +WIRE 2016 1072 2016 1056 +WIRE 2400 1072 2400 1056 +WIRE 2496 1072 2496 1056 +WIRE 1568 1088 1568 1056 +WIRE 2208 1088 2208 1056 +WIRE 2304 1088 2304 1056 +WIRE 2016 1152 2016 1136 +WIRE 1472 1168 1472 1152 +WIRE 1568 1168 1568 1152 +WIRE 2400 1168 2400 1136 +WIRE 2496 1168 2496 1152 +WIRE 1664 1184 1664 1056 +WIRE 1680 1184 1664 1184 +WIRE 2208 1184 2208 1152 +WIRE 2208 1184 1968 1184 +WIRE 2304 1184 2304 1168 +WIRE 2304 1184 2208 1184 +WIRE 2304 1200 2304 1184 +WIRE 1824 1264 1824 1248 +WIRE 2304 1296 2304 1280 +FLAG 1824 1264 0 +FLAG 2304 1296 0 +FLAG 2016 1152 0 +FLAG 2400 1168 0 +FLAG 1472 1168 0 +FLAG 2496 1168 0 +FLAG 2496 1056 OUT +FLAG 1568 1168 0 +FLAG 1472 1056 IN +SYMBOL cap 2000 960 R0 +WINDOW 3 26 50 Left 2 +SYMATTR Value .1µ +SYMATTR InstName C1 +SYMBOL ind 2064 1072 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 5 56 VBottom 2 +SYMATTR InstName L1 +SYMATTR Value 47µ +SYMBOL RES 2288 1072 R0 +WINDOW 3 28 82 Left 2 +SYMATTR Value 1Meg +SYMATTR InstName R1 +SYMBOL res 2288 1296 M180 +WINDOW 0 36 76 Left 2 +WINDOW 3 36 40 Left 2 +SYMATTR InstName R2 +SYMATTR Value 332K +SYMBOL schottky 2000 1136 M180 +WINDOW 0 41 53 Left 2 +WINDOW 3 33 1 Left 2 +SYMATTR InstName D1 +SYMATTR Value MBRS130L +SYMBOL schottky 2144 912 R90 +WINDOW 0 0 32 VBottom 2 +WINDOW 3 41 28 VTop 2 +SYMATTR InstName D2 +SYMATTR Value BAT54 +SYMBOL VOLTAGE 1472 1056 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V1 +SYMATTR Value 34 +SYMBOL cap 2384 1072 R0 +SYMATTR InstName C2 +SYMATTR Value 22µ +SYMBOL cap 1552 1088 R0 +WINDOW 3 26 55 Left 2 +SYMATTR Value 2.2µ +SYMATTR InstName C3 +SYMBOL PowerProducts\\LT1934 1824 1120 R0 +SYMATTR InstName U1 +SYMBOL cap 2192 1088 R0 +SYMATTR InstName C4 +SYMATTR Value 10p +SYMBOL res 2480 1056 R0 +SYMATTR InstName Rload +SYMATTR Value 33 +TEXT 2416 1296 Left 2 !.tran 2.5m startup +TEXT 1384 1312 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 © 2011 Linear Technology Inc. All rights reserved. +TEXT 1984 880 Bottom 2 ;LT1934 - µPower Step Down Regulator in ThinSOT\n5V Step-Down Converter\nInput: 6.5V to 34V Output: 5V @ 250mA diff --git a/branches/XC-Based/PowerLock/Simulations/LT3433 Switching Supply.asc b/branches/XC-Based/PowerLock/Simulations/LT3433 Switching Supply.asc new file mode 100644 index 0000000..c6a2d88 --- /dev/null +++ b/branches/XC-Based/PowerLock/Simulations/LT3433 Switching Supply.asc @@ -0,0 +1,169 @@ +Version 4 +SHEET 1 2856 2324 +WIRE 1008 1216 976 1216 +WIRE 1056 1216 1008 1216 +WIRE 1184 1216 1136 1216 +WIRE 1664 1216 1184 1216 +WIRE 1984 1216 1952 1216 +WIRE 2048 1216 1984 1216 +WIRE 2144 1216 2112 1216 +WIRE 976 1232 976 1216 +WIRE 1184 1232 1184 1216 +WIRE 1312 1296 1264 1296 +WIRE 1664 1296 1312 1296 +WIRE 1984 1296 1984 1280 +WIRE 1984 1296 1952 1296 +WIRE 2032 1296 1984 1296 +WIRE 2112 1296 2096 1296 +WIRE 1184 1312 1184 1296 +WIRE 976 1344 976 1312 +WIRE 1984 1344 1984 1296 +WIRE 1584 1376 1568 1376 +WIRE 1664 1376 1648 1376 +WIRE 1440 1456 1408 1456 +WIRE 1552 1456 1520 1456 +WIRE 1664 1456 1552 1456 +WIRE 1984 1456 1984 1424 +WIRE 1984 1456 1952 1456 +WIRE 2048 1456 1984 1456 +WIRE 2144 1456 2144 1216 +WIRE 2144 1456 2112 1456 +WIRE 2208 1456 2144 1456 +WIRE 2304 1456 2208 1456 +WIRE 1408 1472 1408 1456 +WIRE 1552 1472 1552 1456 +WIRE 2208 1472 2208 1456 +WIRE 2304 1472 2304 1456 +WIRE 1664 1536 1648 1536 +WIRE 1984 1536 1952 1536 +WIRE 2144 1536 2144 1456 +WIRE 2144 1536 1984 1536 +WIRE 1408 1552 1408 1536 +WIRE 1552 1552 1552 1536 +WIRE 1264 1568 1264 1296 +WIRE 2208 1568 2208 1536 +WIRE 2304 1568 2304 1552 +WIRE 1664 1616 1632 1616 +WIRE 1984 1616 1984 1600 +WIRE 1984 1616 1952 1616 +WIRE 2144 1616 2144 1536 +WIRE 1984 1632 1984 1616 +WIRE 1744 1712 1744 1680 +WIRE 1872 1712 1872 1680 +WIRE 1984 1712 1984 1696 +WIRE 1536 1744 1520 1744 +WIRE 1632 1744 1632 1616 +WIRE 1632 1744 1616 1744 +WIRE 2144 1744 2144 1696 +WIRE 2144 1744 1632 1744 +FLAG 976 1344 0 +FLAG 1520 1744 0 +FLAG 2208 1568 0 +FLAG 2304 1568 0 +FLAG 1408 1552 0 +FLAG 2304 1456 OUT +FLAG 1872 1712 0 +FLAG 1744 1712 0 +FLAG 1568 1376 0 +FLAG 2112 1296 0 +FLAG 1984 1712 0 +FLAG 1648 1536 0 +FLAG 1184 1312 0 +FLAG 1008 1216 IN +FLAG 1552 1552 0 +FLAG 1264 1648 0 +FLAG 1312 1296 Enable +SYMBOL ind 1968 1328 R0 +SYMATTR InstName L1 +SYMATTR Value 100µ +SYMATTR SpiceLine Rser=.5 +SYMBOL VOLTAGE 976 1216 R0 +WINDOW 0 23 21 Left 2 +WINDOW 3 24 92 Left 2 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V1 +SYMATTR Value 34 +SYMBOL res 2128 1600 R0 +SYMATTR InstName R2 +SYMATTR Value 305K +SYMBOL res 1632 1728 R90 +WINDOW 0 0 56 VBottom 2 +WINDOW 3 32 56 VTop 2 +SYMATTR InstName R3 +SYMATTR Value 100K +SYMBOL res 2288 1456 R0 +SYMATTR InstName Rload +SYMATTR Value 40 +SYMBOL cap 1392 1472 R0 +SYMATTR InstName C3 +SYMATTR Value 1000p +SYMBOL res 1536 1440 R90 +WINDOW 0 0 56 VBottom 2 +WINDOW 3 32 56 VTop 2 +SYMATTR InstName R6 +SYMATTR Value 68K +SYMBOL cap 1648 1360 R90 +WINDOW 0 0 32 VBottom 2 +WINDOW 3 30 31 VTop 2 +SYMATTR InstName C5 +SYMATTR Value .01µ +SYMBOL cap 1968 1280 M180 +WINDOW 0 30 49 Left 2 +WINDOW 3 25 14 Left 2 +SYMATTR InstName C6 +SYMATTR Value .1µ +SYMBOL schottky 2048 1472 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D4 +SYMATTR Value 1N5817 +SYMATTR Description Diode +SYMATTR Type diode +SYMBOL schottky 2096 1312 M270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D1 +SYMATTR Value 1N5819 +SYMATTR Description Diode +SYMATTR Type diode +SYMBOL diode 2112 1232 M270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D3 +SYMATTR Value 1N4148 +SYMBOL diode 1968 1536 R0 +WINDOW 0 37 27 Left 2 +WINDOW 3 29 54 Left 2 +SYMATTR InstName D2 +SYMATTR Value 1N4148 +SYMBOL cap 1968 1696 M180 +WINDOW 0 24 64 Left 2 +WINDOW 3 24 8 Left 2 +SYMATTR InstName C1 +SYMATTR Value .1µ +SYMBOL PowerProducts\\LT3433 1808 1440 R0 +SYMATTR InstName U1 +SYMBOL cap 1168 1232 R0 +SYMATTR InstName C4 +SYMATTR Value 2.2µ +SYMBOL polcap 2192 1472 R0 +SYMATTR InstName C2 +SYMATTR Value 47µ +SYMATTR SpiceLine Rser=.2 +SYMBOL cap 1536 1472 R0 +SYMATTR InstName C7 +SYMATTR Value 330p +SYMBOL res 1152 1200 R90 +WINDOW 0 0 56 VBottom 2 +WINDOW 3 32 56 VTop 2 +SYMATTR InstName R1 +SYMATTR Value 1 +SYMBOL voltage 1264 1552 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V2 +SYMATTR Value PULSE(0 3.5 2ms 0us 0us 5ms) +TEXT 2200 1728 Left 2 !.tran 10m startup +TEXT 1272 1776 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 © 2006 Linear Technology Inc. All rights reserved. +TEXT 1856 1168 Bottom 2 ;LT3433 - High Voltage 60V Step-Up / Step-Down Converter with Burst Mode\nInput: 5V Output: 5V @ 125mA diff --git a/branches/XC-Based/PowerLock/Simulations/Power Supply - Analog.asc b/branches/XC-Based/PowerLock/Simulations/Power Supply - Analog.asc new file mode 100644 index 0000000..82c2a8e --- /dev/null +++ b/branches/XC-Based/PowerLock/Simulations/Power Supply - Analog.asc @@ -0,0 +1,80 @@ +Version 4 +SHEET 1 880 680 +WIRE -16 -64 -640 -64 +WIRE 64 -64 48 -64 +WIRE -16 32 -320 32 +WIRE 64 32 64 -64 +WIRE 64 32 48 32 +WIRE -16 128 -48 128 +WIRE 64 128 64 32 +WIRE 64 128 48 128 +WIRE 80 128 64 128 +WIRE 192 128 144 128 +WIRE 240 128 192 128 +WIRE 448 128 384 128 +WIRE -640 160 -640 -64 +WIRE -320 160 -320 32 +WIRE -48 160 -48 128 +WIRE 192 160 192 128 +WIRE 448 160 448 128 +WIRE 192 256 192 224 +WIRE 320 256 320 176 +WIRE 448 256 448 240 +WIRE -640 272 -640 240 +WIRE -320 272 -320 240 +WIRE -48 272 -48 240 +FLAG 192 256 0 +FLAG -48 272 0 +FLAG -320 272 0 +FLAG 192 128 Vin +FLAG -48 128 V1 +FLAG -320 32 V2 +FLAG -640 272 0 +FLAG -640 -64 V3 +FLAG 320 256 0 +FLAG 448 256 0 +FLAG 448 128 Vout +SYMBOL diode 80 144 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D1 +SYMBOL cap 176 160 R0 +SYMATTR InstName C1 +SYMATTR Value 47µ +SYMBOL voltage -48 144 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V1 +SYMATTR Value SINE(0 12 166) +SYMBOL voltage -320 144 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V2 +SYMATTR Value SINE(0 12 166 .002) +SYMBOL res 432 144 R0 +SYMATTR InstName R1 +SYMATTR Value 50 +SYMBOL diode -16 144 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D3 +SYMBOL diode -16 48 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D4 +SYMBOL voltage -640 144 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V3 +SYMATTR Value SINE(0 12 166 .004) +SYMBOL diode -16 -48 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D5 +SYMBOL UserCreated\\LM140T-5v 320 176 R0 +SYMATTR Prefix X +SYMATTR SpiceModel LM140T-5 +SYMATTR Value "" +SYMATTR InstName U1 +TEXT -210 296 Left 0 !.tran .05 +TEXT 240 -48 Left 2 !.lib LM140T-5.sub diff --git a/branches/XC-Based/PowerLock/Simulations/Switching Power Supply.asc b/branches/XC-Based/PowerLock/Simulations/Switching Power Supply.asc new file mode 100644 index 0000000..b3826df --- /dev/null +++ b/branches/XC-Based/PowerLock/Simulations/Switching Power Supply.asc @@ -0,0 +1,173 @@ +Version 4 +SHEET 1 1684 740 +WIRE 560 64 160 64 +WIRE -560 80 -672 80 +WIRE -352 80 -496 80 +WIRE 32 80 -352 80 +WIRE -672 96 -672 80 +WIRE 32 96 32 80 +WIRE 160 96 160 64 +WIRE -352 160 -496 160 +WIRE -64 160 -352 160 +WIRE 560 160 560 64 +WIRE 560 160 256 160 +WIRE -352 176 -352 160 +WIRE -672 224 -672 176 +WIRE -240 240 -256 240 +WIRE -160 240 -176 240 +WIRE -64 240 -80 240 +WIRE 288 240 256 240 +WIRE 384 240 288 240 +WIRE 448 240 384 240 +WIRE 560 240 560 160 +WIRE 560 240 528 240 +WIRE 656 240 560 240 +WIRE 752 240 656 240 +WIRE 848 240 752 240 +WIRE 1008 240 848 240 +WIRE -352 256 -352 240 +WIRE 288 256 288 240 +WIRE 384 256 384 240 +WIRE 752 256 752 240 +WIRE 848 256 848 240 +WIRE -496 272 -496 160 +WIRE 560 272 560 240 +WIRE 1008 288 1008 240 +WIRE -688 320 -784 320 +WIRE -560 320 -608 320 +WIRE -208 320 -256 320 +WIRE -64 320 -128 320 +WIRE 288 320 256 320 +WIRE 384 336 384 320 +WIRE 656 336 656 240 +WIRE -784 352 -784 320 +WIRE 752 352 752 320 +WIRE 848 352 848 336 +WIRE -64 400 -160 400 +WIRE 560 400 560 352 +WIRE 560 400 256 400 +WIRE 560 416 560 400 +WIRE -496 432 -496 368 +WIRE 1008 432 1008 368 +WIRE 96 464 96 448 +WIRE -784 480 -784 432 +WIRE 1104 480 1072 480 +WIRE 1248 480 1184 480 +WIRE 560 512 560 496 +WIRE 1248 512 1248 480 +WIRE -160 544 -160 400 +WIRE 656 544 656 416 +WIRE 656 544 -160 544 +WIRE 1008 560 1008 528 +WIRE 1248 640 1248 592 +FLAG 384 336 0 +FLAG 752 352 0 +FLAG 560 512 0 +FLAG -256 240 0 +FLAG -672 224 0 +FLAG 96 464 0 +FLAG 848 352 0 +FLAG -256 320 0 +FLAG -352 256 0 +FLAG 848 240 OUT +FLAG 1008 560 0 +FLAG 1248 640 0 +FLAG -496 432 0 +FLAG -784 480 0 +FLAG -784 320 Shutdown +FLAG 1248 480 StepLoad +SYMBOL ind 432 256 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 5 56 VBottom 2 +SYMATTR InstName L1 +SYMATTR Value 4.7µ +SYMATTR SpiceLine Rpar=2K +SYMBOL schottky 368 320 M180 +WINDOW 0 28 62 Left 2 +WINDOW 3 24 0 Left 2 +SYMATTR InstName D1 +SYMATTR Value MBRS340 +SYMATTR Description Diode +SYMATTR Type diode +SYMBOL cap 736 256 R0 +SYMATTR InstName C1 +SYMATTR Value 22µ +SYMBOL voltage -672 80 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V1 +SYMATTR Value 7 +SYMBOL res 544 256 R0 +SYMATTR InstName R1 +SYMATTR Value 165K +SYMBOL res 544 400 R0 +SYMATTR InstName R2 +SYMATTR Value 56K +SYMBOL cap 272 256 R0 +WINDOW 3 30 49 Left 2 +SYMATTR Value .47µ +SYMATTR InstName C2 +SYMBOL cap -176 224 R90 +WINDOW 0 0 32 VBottom 2 +WINDOW 3 32 32 VTop 2 +SYMATTR InstName C3 +SYMATTR Value 4700p +SYMBOL res -64 224 R90 +WINDOW 0 0 56 VBottom 2 +WINDOW 3 32 56 VTop 2 +SYMATTR InstName R3 +SYMATTR Value 16.2K +SYMBOL res -112 304 R90 +WINDOW 0 0 56 VBottom 2 +WINDOW 3 32 56 VTop 2 +SYMATTR InstName R4 +SYMATTR Value 60.4K +SYMBOL res 640 320 R0 +SYMATTR InstName R5 +SYMATTR Value 100K +SYMBOL res -368 64 R0 +SYMATTR InstName R6 +SYMATTR Value 100K +SYMBOL cap -368 176 R0 +SYMATTR InstName C4 +SYMATTR Value .01µ +SYMBOL PowerProducts\\LT3684 96 288 R0 +SYMATTR InstName U1 +SYMBOL res 832 240 R0 +SYMATTR InstName Rload +SYMATTR Value 83 +SYMBOL voltage 1248 496 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V2 +SYMATTR Value PULSE(0 3 .001 0 0 .0005 .001 2) +SYMBOL npn 1072 432 M0 +SYMATTR InstName Q1 +SYMBOL res 992 272 R0 +SYMATTR InstName Rload1 +SYMATTR Value 50 +SYMBOL res 1088 496 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 0 56 VBottom 2 +SYMATTR InstName Rload2 +SYMATTR Value 50 +SYMBOL voltage -784 336 R0 +WINDOW 123 0 0 Left 2 +WINDOW 39 0 0 Left 2 +SYMATTR InstName V3 +SYMATTR Value PULSE(0 2.8 1.8ms 0 0 .4ms) +SYMBOL res -704 336 R270 +WINDOW 0 32 56 VTop 2 +WINDOW 3 0 56 VBottom 2 +SYMATTR InstName Rload3 +SYMATTR Value 50 +SYMBOL npn -560 272 R0 +SYMATTR InstName Q2 +SYMBOL diode -560 96 R270 +WINDOW 0 32 32 VTop 2 +WINDOW 3 0 32 VBottom 2 +SYMATTR InstName D2 +TEXT 704 448 Left 2 !.tran 3m startup +TEXT -448 544 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 © 2007 Linear Technology Inc. All rights reserved. +TEXT 96 40 Bottom 2 ;LT3684 - 36V, 2A Step-Down Switching Regulator \nInput: 24V Output: 5.0V@2A +TEXT -152 -48 Left 2 ;Modified to evaluate for PowerLock project.