* Z:\home\khalils\Downloads\files\data\raw_asc\LTM4676A.asc
* Generated by LTspice 26.0.1 for Windows.
* Please read the following notes carefully, since the model presents different user interface\nthan the real part does.\n \n(1) All PMBus communication and memory address related functions and pins are not modeled. \n \n(2) Changes to all parameter values during the simulation running will not be in effect, unless the\nsimulation is stopped and restarted. This is different from the operation of the part, which will\n respond to the commanded changes while running. \n \n(3) Share_clk is not modeled. The default time reference of LTspice is used as the common time \nbase for all time related parameters.\n \n(4) The following parameters can be defined, by right-clicking the symbol of LTM4676A. Different \nnomenclature from the datasheet is adopted here. If any value of these parameters are set beyond \nthe scope discribed in the datasheet, the resulting simulation outcomes are not meaningful.\n \n VIN_ON & VIN_OFF -- in volts, set the unit start/stop input voltages;\n Freq -- in Hz, sets switching frequency as one of values of 250K, 350K, \n 425K, 500K, 575K, 650K, 750K, 1000K. FREQ_CFG pin needs to float \n (or short to VDD25), to make the value be in effect;\n PHs_0 & PHs_1 -- in degree, set phase angle related to SYNC signal. \n Certain combinations are restricted as in datasheet. FREQ_CFG \n pin needs to float (or short to VDD25), to make the value be in effect;\n Ton0_delay & Ton0_rise; Ton1_delay & Ton1_rise -- in sec, set delay and soft-start timers for \n channel0 and channel1. Initialization time is not modeled;\n Toff0_delay & Toff0_fall; Toff1_delay & Toff1_fall -- in sec, set delay and soft-off timers for \n channel0 and channel1;\n Vout_0 & Vout_1 -- in volt, set output voltages respectively;\n Vout0_range & Vout1_range -- set maximum output range, with value 0\n for 5.5V; value 1 for 2.75V\n Ilim0_range & Ilim1_range -- set maximum sensed peak current range, with value 0\n for low 50mV, and 1 for high 75mV;\n OC_limit0 & OC_limit1 -- set ratio of peak current limit to the maximum value defined\n by Ilimit_range. It must be one of values: 0.5, 0.572, 0.642, \n 0.714, 0.786, 0.858, 0.928, 1;\n Mode_II -- sets light load operation mode: 0 for discontinuous, 2 for forced continuous;\n Fault_response -- sets the response mode of the unit to occuring faults:\n 0 for ignore, 1 for latch up, 2 for Hiccup after Retry_delay time;\n Retry_delay -- in sec, sets the timer before the unit turns on after a fault;
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTM4676A.asy)
C3 OUT0 0 330 V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
C4 OUT0 0 100 x3 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
R3 N001 N003 10K
R4 N001 N002 10K
Rload0 OUT0 0 .077
Rload1 OUT1 0 .138
V1 IN 0 12
C1 OUT1 0 330 V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
C2 OUT1 0 100 x3 V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
R2 N011 N001 10K
R1 N009 0 6.34K
XU1 OUT0 0 N004 N006 N010 N005 N007 N011 IN NC_01 OUT0 N005 N007 N003 N002 N010 NC_02 NC_03 N009 NC_04 0 NC_05 N008 IN N001 N008 OUT1 NC_06 NC_07 OUT1 N004 N006 NC_08 0 IN NC_09 NC_10 NC_11 NC_12 MP_13 0 LTM4676A VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1.8 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m Freq=500K PHs_0=0 PHs_1=180 Ton0_delay=.3m Ton0_rise=.5m Ton1_delay=.3m Ton1_rise=.5m Toff0_delay=.2m Toff0_fall=.3m Toff1_delay=.2m Toff1_fall=.3m Vout0_range=0 Vout1_range=0 ;pnba Vosns0+)Vosns0-)Isns1a+)Isns1a-)COMP0a)Isns0b+)Isns0a-)SYNC)Vin0)SNUB0)Vout0)Isns0a+)Isns0b-)Run0)Run1)COMP0b)Fswphcfg)Vout0_cfg)Vout1_cfg)Vtrim0_cfg)Vtrim1_cfg)VDD25)COMP1b)Vin1)VDD33)COMP1a)Vosns1)SNUB1)SW1)Vout1)Isns1b+)Isns1b-)IntVcc)PGND)SVin)Vorb0+)Vorb0-)Vorb1)SW0))SGND
.tran 1.3m startup
.lib LTM4676A.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3884 1188
WIRE 1616 -464 1104 -464
WIRE 1744 -464 1616 -464
WIRE 1872 -464 1744 -464
WIRE 1104 -448 1104 -464
WIRE 1744 -448 1744 -464
WIRE 1008 -352 896 -352
WIRE 1232 -352 1008 -352
WIRE 1840 -352 1232 -352
WIRE 896 -336 896 -352
WIRE 1104 -336 1104 -368
WIRE 1232 -336 1232 -352
WIRE 1616 -336 1616 -464
WIRE 1744 -336 1744 -368
WIRE 1008 -272 1008 -352
WIRE 1024 -272 1008 -272
WIRE 1840 -272 1840 -352
WIRE 1840 -272 1824 -272
WIRE 896 -240 896 -256
WIRE 800 16 672 16
WIRE 912 16 800 16
WIRE 992 16 912 16
WIRE 1024 16 992 16
WIRE 1856 16 1824 16
WIRE 1920 16 1856 16
WIRE 2016 16 1920 16
WIRE 2144 16 2016 16
WIRE 672 32 672 16
WIRE 800 32 800 16
WIRE 912 32 912 16
WIRE 1920 32 1920 16
WIRE 2016 32 2016 16
WIRE 2144 32 2144 16
WIRE 1024 112 1008 112
WIRE 1840 112 1824 112
WIRE 672 128 672 112
WIRE 800 128 800 96
WIRE 912 128 912 96
WIRE 1920 128 1920 96
WIRE 2016 128 2016 96
WIRE 2144 128 2144 112
WIRE 1008 208 1008 112
WIRE 1024 208 1008 208
WIRE 1840 208 1840 112
WIRE 1840 208 1824 208
WIRE 1024 304 1008 304
WIRE 1840 304 1824 304
WIRE 1008 400 1008 304
WIRE 1024 400 1008 400
WIRE 1840 400 1840 304
WIRE 1840 400 1824 400
WIRE 992 496 992 16
WIRE 1024 496 992 496
WIRE 1856 496 1856 16
WIRE 1856 496 1824 496
WIRE 1024 688 1008 688
WIRE 1840 688 1824 688
WIRE 1008 784 1008 688
WIRE 1024 784 1008 784
WIRE 928 880 912 880
WIRE 1024 880 1008 880
WIRE 1840 880 1824 880
WIRE 1024 976 992 976
WIRE 1840 976 1840 880
WIRE 1840 976 1824 976
WIRE 1104 1056 1104 1040
WIRE 1232 1056 1232 1040
WIRE 1488 1056 1488 1040
WIRE 1104 1152 1104 1136
WIRE 1872 1152 1872 -464
WIRE 1872 1152 1104 1152
SYMBOL polcap 896 32 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 330
SYMATTR InstName C1
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
SYMBOL voltage 896 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 784 32 R0
WINDOW 123 28 61 Left 2
WINDOW 3 39 36 Left 2
SYMATTR Value2 x3
SYMATTR Value 100
SYMATTR InstName C2
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res 1728 -464 R0
SYMATTR InstName R3
SYMATTR Value 10K
SYMBOL res 1024 864 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 6.34K
SYMBOL cap 2000 32 R0
WINDOW 123 28 65 Left 2
WINDOW 3 38 34 Left 2
SYMATTR Value2 x3
SYMATTR Value 100
SYMATTR InstName C4
SYMATTR SpiceLine V=6.3 Irms=0 Rser=0.002 Lser=0 mfg="TDK" pn="C575OX5ROJI07M" type="X5R"
SYMBOL res 1088 1040 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL res 656 16 R0
SYMATTR InstName Rload1
SYMATTR Value .138
SYMBOL PowerProducts\\LTM4676A 1424 352 R0
SYMATTR InstName U1
SYMATTR SpiceLine VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1.8 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m
SYMBOL polcap 1904 32 R0
WINDOW 3 24 56 Left 2
SYMATTR Value 330
SYMATTR InstName C3
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=6.3 Irms=5 Rser=0.01 Lser=0 mfg="KEMET" pn="T530D337M006ASE010" type="Tantalum"
SYMBOL res 1088 -464 R0
SYMATTR InstName R4
SYMATTR Value 10K
SYMBOL res 2128 16 R0
SYMATTR InstName Rload0
SYMATTR Value .077
FLAG 896 -240 0
FLAG 672 128 0
FLAG 672 16 OUT1
FLAG 912 128 0
FLAG 800 128 0
FLAG 896 -352 IN
FLAG 912 880 0
FLAG 992 976 0
FLAG 1232 1056 0
FLAG 1488 1056 0
FLAG 2144 128 0
FLAG 2144 16 OUT0
FLAG 1920 128 0
FLAG 2016 128 0
FLAG 1840 688 0
TEXT 1928 640 Left 2 !.tran 1.3m startup
TEXT 2288 -192 Left 2 ;Please read the following notes carefully, since the model presents different user interface\nthan the real part does.\n \n(1) All PMBus communication and memory address related functions and pins are not modeled. \n \n(2) Changes to all parameter values during the simulation running will not be in effect, unless the\nsimulation is stopped and restarted. This is different from the operation of the part, which will\n respond to the commanded changes while running. \n \n(3) Share_clk is not modeled. The default time reference of LTspice is used as the common time \nbase for all time related parameters.\n \n(4) The following parameters can be defined, by right-clicking the symbol of LTM4676A. Different \nnomenclature from the datasheet is adopted here. If any value of these parameters are set beyond \nthe scope discribed in the datasheet, the resulting simulation outcomes are not meaningful.\n \n     VIN_ON & VIN_OFF -- in volts, set the unit start/stop input voltages;\n     Freq -- in Hz, sets switching frequency as one of values of 250K, 350K, \n                425K, 500K, 575K, 650K, 750K, 1000K. FREQ_CFG pin needs to float \n                (or short to VDD25), to make the value be in effect;\n     PHs_0 & PHs_1 -- in degree,  set phase angle related to SYNC signal. \n                Certain combinations are restricted as in datasheet. FREQ_CFG \n                pin needs to float (or short to VDD25), to make the value be in effect;\n     Ton0_delay & Ton0_rise; Ton1_delay & Ton1_rise -- in sec, set delay and soft-start timers for \n                channel0 and channel1. Initialization time is not modeled;\n     Toff0_delay & Toff0_fall; Toff1_delay & Toff1_fall -- in sec, set delay and soft-off timers for \n                channel0 and channel1;\n     Vout_0 & Vout_1 -- in volt, set output voltages respectively;\n     Vout0_range & Vout1_range -- set maximum output range, with value 0\n                                                      for 5.5V; value 1 for 2.75V\n     Ilim0_range & Ilim1_range -- set maximum sensed peak current range, with value 0\n                           for low 50mV, and 1 for high 75mV;\n     OC_limit0 & OC_limit1 -- set ratio of peak current limit to the maximum value defined\n                      by Ilimit_range. It must be one of values: 0.5, 0.572, 0.642, \n                      0.714, 0.786, 0.858, 0.928, 1;\n     Mode_II -- sets light load operation mode: 0 for discontinuous, 2 for forced continuous;\n     Fault_response -- sets the response mode of the unit to occuring faults:\n                                 0 for ignore, 1 for latch up, 2 for Hiccup after Retry_delay time;\n     Retry_delay -- in sec, sets the timer before the unit turns on after a fault;