* Z:\home\khalils\Downloads\files\data\raw_asc\LTM4680.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 LTC3880. 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 3.6V; value 1 for 2.75V\n Ilim0_range & Ilim1_range -- set maximum sensed peak current range, with value 0\n for low and 1 for high;\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, 1 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;\n gm -- transconductance of the error amplifier. It must be between 1m mho and 5.73m mho;\n Rth -- Compensation resistor. It must be set between 0k ohms and 62k ohms;\n Sync - value 0 for Master, value 1 for Slave
* Library below included based on ModelFile attribute of instance XU1 (C:\users\khalils\AppData\Local\LTspice\lib\sym\PowerProducts\LTM4680.asy)
C7 OUT1 0 100 m=3 Rser=5m
C4 0 N003 4700p
Rload2 OUT1 0 .055
XU1 OUT1 0 0 NC_01 N004 N002 NC_02 OUT1 IN IN N006 0 NC_03 IN NC_04 NC_05 N007 N005 NC_06 NC_07 NC_08 NC_09 NC_10 NC_11 NC_12 OUT0 OUT0 N008 N001 N003 0 LTM4680 VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=1 Fault_response=0 Retry_delay=.1m gm0=3m gm1=3m Rth0=5K Rth1=5K Sync=0 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 VSENSE0+)VSENSE0-)SGND)PGOOD0)COMP0a)COMP0b)SW0)VOUT0)VIN0)VIN1)SYNC)PGND)EXTVcc)SVIN)INTVcc)SW1)RUN0)RUN1)PGOOD1)VTRIM0_CFG)VOUT0_CFG)VOUT1_CFG)VTRIM1_CFG)FSWPH_CFG)VDD25)VSENSE1+)VOUT1)VDD33)COMP1b)COMP1a)VSENSE1-
Rload1 OUT0 0 .055
C8 OUT0 0 100 m=3 Rser=5m
C3 0 N001 220p
V1 IN 0 12
C5 0 N002 220p
R1 N007 N008 10K
C1 OUT1 0 330 m=2 Rser=5m
R2 N005 N008 10K
C2 OUT0 0 330 m=2 Rser=5m
C6 0 N004 2200p
R3 N006 N008 4.99K
.tran 1.8m startup
.lib LTM4680.sub
.backanno
.end

* LTspice schematic (.asc):
Version 4
SHEET 1 3120 1720
WIRE 272 -352 176 -352
WIRE 320 -352 272 -352
WIRE 432 -352 320 -352
WIRE 928 -352 432 -352
WIRE 176 -336 176 -352
WIRE 432 -304 432 -352
WIRE 624 -304 624 -320
WIRE 720 -304 720 -320
WIRE 176 -240 176 -256
WIRE 320 -240 320 -352
WIRE 368 -240 320 -240
WIRE 928 -240 928 -352
WIRE 928 -240 880 -240
WIRE 0 -48 -64 -48
WIRE 64 -48 0 -48
WIRE 192 -48 64 -48
WIRE 320 -48 192 -48
WIRE 368 -48 320 -48
WIRE 928 -48 880 -48
WIRE 976 -48 928 -48
WIRE 1088 -48 976 -48
WIRE 1152 -48 1088 -48
WIRE 1200 -48 1152 -48
WIRE -64 -32 -64 -48
WIRE 64 -32 64 -48
WIRE 192 -32 192 -48
WIRE 976 -32 976 -48
WIRE 1088 -32 1088 -48
WIRE 1200 -32 1200 -48
WIRE 320 48 320 -48
WIRE 368 48 320 48
WIRE 928 48 928 -48
WIRE 928 48 880 48
WIRE -64 64 -64 48
WIRE 64 64 64 32
WIRE 192 64 192 32
WIRE 976 64 976 32
WIRE 1088 64 1088 32
WIRE 1200 64 1200 48
WIRE 368 144 336 144
WIRE 912 144 880 144
WIRE 272 240 240 240
WIRE 368 240 336 240
WIRE 912 240 880 240
WIRE 1008 240 976 240
WIRE 272 336 240 336
WIRE 368 336 336 336
WIRE 912 336 880 336
WIRE 1008 336 976 336
WIRE 432 800 432 784
WIRE 720 800 720 784
WIRE 816 800 816 784
WIRE 432 896 432 880
WIRE 624 896 624 784
WIRE 624 896 432 896
WIRE 720 896 720 880
WIRE 720 896 624 896
WIRE 816 896 816 880
WIRE 816 896 720 896
SYMBOL LTM4680 624 240 R0
SYMATTR InstName U1
SYMATTR SpiceLine VIN_ON=5.5 VIN_OFF=5 Vout_0=1 Vout_1=1 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=1 Fault_response=0 Retry_delay=.1m gm0=3m gm1=3m Rth0=5K Rth1=5K Sync=0
SYMBOL cap 272 224 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 220p
SYMBOL res 416 784 R0
SYMATTR InstName R2
SYMATTR Value 10K
SYMBOL voltage 176 -352 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap 960 -32 R0
WINDOW 123 27 80 Left 2
WINDOW 3 28 58 Left 2
WINDOW 0 33 15 Left 2
SYMATTR Value2 m=2
SYMATTR Value 330
SYMATTR InstName C1
SYMATTR SpiceLine Rser=5m
SYMBOL res 800 784 R0
SYMATTR InstName R1
SYMATTR Value 10K
SYMBOL cap 976 224 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 220p
SYMBOL cap 1072 -32 R0
WINDOW 123 35 78 Left 2
WINDOW 3 37 53 Left 2
WINDOW 0 35 13 Left 2
SYMATTR Value2 m=3
SYMATTR Value 100
SYMATTR InstName C7
SYMATTR SpiceLine Rser=5m
SYMBOL res -80 -48 R0
SYMATTR InstName Rload1
SYMATTR Value .055
SYMBOL cap 272 320 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 4700p
SYMBOL cap 176 -32 R0
WINDOW 123 27 80 Left 2
WINDOW 3 28 58 Left 2
WINDOW 0 33 15 Left 2
SYMATTR Value2 m=2
SYMATTR Value 330
SYMATTR InstName C2
SYMATTR SpiceLine Rser=5m
SYMBOL res 704 784 R0
WINDOW 3 29 81 Left 2
SYMATTR Value 4.99K
SYMATTR InstName R3
SYMBOL cap 976 320 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C6
SYMATTR Value 2200p
SYMBOL res 1184 -48 R0
SYMATTR InstName Rload2
SYMATTR Value .055
SYMBOL cap 48 -32 R0
WINDOW 123 35 78 Left 2
WINDOW 3 37 53 Left 2
WINDOW 0 35 13 Left 2
SYMATTR Value2 m=3
SYMATTR Value 100
SYMATTR InstName C8
SYMATTR SpiceLine Rser=5m
FLAG 624 -320 0
FLAG 976 64 0
FLAG 1200 64 0
FLAG 1152 -48 OUT1
FLAG 272 -352 IN
FLAG 176 -240 0
FLAG 192 64 0
FLAG -64 64 0
FLAG 0 -48 OUT0
FLAG 336 144 0
FLAG 912 144 0
FLAG 240 240 0
FLAG 240 336 0
FLAG 1008 240 0
FLAG 1008 336 0
FLAG 1088 64 0
FLAG 64 64 0
FLAG 720 -320 0
TEXT 640 936 Right 2 !.tran 1.8m startup
TEXT 1392 -360 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 LTC3880. 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 3.6V; value 1 for 2.75V\n     Ilim0_range & Ilim1_range -- set maximum sensed peak current range, with value 0\n                           for low  and 1 for high;\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, 1 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;\n     gm -- transconductance of the error amplifier. It must be between 1m mho and 5.73m mho;\n     Rth -- Compensation resistor. It must be set between 0k ohms and 62k ohms;\n    Sync - value 0 for Master, value 1 for Slave