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WIRE 4000 192 4000 -288 WIRE 4112 192 4000 192 WIRE 5104 192 5104 -288 WIRE 5104 192 4912 192 WIRE -1024 384 -1200 384 WIRE -96 384 -96 -176 WIRE -96 384 -224 384 WIRE 864 384 768 384 WIRE 1776 384 1776 -192 WIRE 1776 384 1664 384 WIRE 2448 384 2368 384 WIRE 3360 384 3360 -192 WIRE 3360 384 3248 384 WIRE 4112 384 4016 384 WIRE 5136 384 5136 -192 WIRE 5136 384 4912 384 WIRE -192 576 -224 576 WIRE -64 576 -192 576 WIRE 16 576 0 576 WIRE 1760 576 1664 576 WIRE 3344 576 3248 576 WIRE 5008 576 4912 576 WIRE -816 768 -816 736 WIRE -560 768 -560 736 WIRE 1072 768 1072 736 WIRE 1328 768 1328 736 WIRE 2656 768 2656 736 WIRE 2912 768 2912 736 WIRE 4320 768 4320 736 WIRE 4576 768 4576 736 WIRE -1152 816 -1152 -784 WIRE -1040 816 -1152 816 WIRE -944 816 -944 736 WIRE -944 816 -960 816 WIRE 944 816 944 736 WIRE 944 816 -944 816 WIRE 2528 816 2528 736 WIRE 2528 816 944 816 WIRE 4192 816 4192 736 WIRE 4192 816 2528 816 WIRE -1200 864 -1200 384 WIRE -192 864 -192 576 WIRE -192 864 -1200 864 WIRE 768 864 768 384 WIRE 768 864 -192 864 WIRE 1760 864 1760 576 WIRE 1760 864 768 864 WIRE 2368 864 2368 384 WIRE 2368 864 1760 864 WIRE 3344 864 3344 576 WIRE 3344 864 2368 864 WIRE 4016 864 4016 384 WIRE 4016 864 3344 864 WIRE 5008 864 5008 576 WIRE 5008 864 4016 864 FLAG -1264 -736 0 FLAG -1392 -736 0 FLAG -816 768 0 FLAG -560 768 0 FLAG -32 -160 0 FLAG 96 -160 0 FLAG -1424 -160 0 FLAG -1296 -160 0 FLAG -1392 -848 IN FLAG -1424 -288 OUT FLAG 16 576 0 FLAG 272 -160 0 FLAG 592 -720 0 FLAG 1072 768 0 FLAG 1328 768 0 FLAG 1840 -176 0 FLAG 1968 -176 0 FLAG 416 -160 0 FLAG 560 -160 0 FLAG 272 -288 OUT FLAG 2224 -720 0 FLAG 2656 768 0 FLAG 2912 768 0 FLAG 3424 -176 0 FLAG 3552 -176 0 FLAG 2112 -176 0 FLAG 2256 -176 0 FLAG 2032 -288 OUT FLAG 3840 -720 0 FLAG 4320 768 0 FLAG 4576 768 0 FLAG 5200 -176 0 FLAG 5328 -176 0 FLAG 3744 -176 0 FLAG 3888 -176 0 FLAG 3648 -288 OUT FLAG 5328 -288 OUT SYMBOL PowerProducts\\LTM4676 -624 48 R0 WINDOW 39 27 886 Center 2 WINDOW 40 112 930 Center 2 SYMATTR SpiceLine VIN_ON=4.2 VIN_OFF=4 Vout_0=1.0 Vout_1=1.0 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m SYMATTR SpiceLine2 Freq=350K 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 SYMATTR InstName U1 SYMBOL cap -1280 -832 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x4 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL voltage -1392 -848 R0 WINDOW 123 24 138 Left 2 WINDOW 39 24 117 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL res -960 -784 R0 SYMATTR InstName R1 SYMATTR Value 10K SYMBOL cap -48 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x5 SYMATTR InstName C2 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL cap 80 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x4 SYMATTR InstName C3 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap -1440 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C4 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap -1312 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C5 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL cap -64 592 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 WINDOW 39 -21 32 VBottom 2 SYMATTR InstName C6 SYMATTR Value 3.3n SYMATTR SpiceLine Rser=1.65K Cpar=220p SYMBOL res -944 800 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL current 272 -272 R0 WINDOW 123 -30 211 Left 2 WINDOW 3 -191 160 Left 2 SYMATTR Value2 LOAD SYMATTR Value PULSE(50 100 1.5m 5u 5u .25m .5m) SYMATTR InstName I1 SYMBOL PowerProducts\\LTM4676 1264 48 R0 WINDOW 39 -55 970 Center 2 WINDOW 40 14 1008 Center 2 SYMATTR SpiceLine VIN_ON=4.2 VIN_OFF=4 Vout_0=1.0 Vout_1=1.0 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m SYMATTR SpiceLine2 Freq=350K PHs_0=90 PHs_1=270 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 SYMATTR InstName U2 SYMBOL cap 576 -832 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x4 SYMATTR InstName C7 SYMATTR Value 10µ SYMBOL cap 1824 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C8 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL cap 1952 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C9 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 400 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C10 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 544 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C11 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL PowerProducts\\LTM4676 2848 48 R0 WINDOW 39 43 854 Center 2 WINDOW 40 119 893 Center 2 SYMATTR SpiceLine VIN_ON=4.2 VIN_OFF=4 Vout_0=1.0 Vout_1=1.0 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m SYMATTR SpiceLine2 Freq=350K PHs_0=60 PHs_1=240 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 SYMATTR InstName U3 SYMBOL cap 2208 -832 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x4 SYMATTR InstName C12 SYMATTR Value 10µ SYMBOL cap 3408 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C13 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL cap 3536 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C14 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 2096 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C15 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 2240 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C16 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL PowerProducts\\LTM4676 4512 48 R0 WINDOW 39 4 945 Center 2 WINDOW 40 58 988 Center 2 SYMATTR SpiceLine VIN_ON=4.2 VIN_OFF=4 Vout_0=1.0 Vout_1=1.0 Ilim0_range=1 Ilim1_range=1 OC_limit0=1 OC_limit1=1 Mode_ll=2 Fault_response=0 Retry_delay=.1m SYMATTR SpiceLine2 Freq=350K PHs_0=120 PHs_1=300 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 SYMATTR InstName U4 SYMBOL cap 3824 -832 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x4 SYMATTR InstName C17 SYMATTR Value 10µ SYMBOL cap 5184 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C18 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m SYMBOL cap 5312 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C19 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 3728 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR Value2 x2 SYMATTR InstName C20 SYMATTR Value 330µ SYMATTR SpiceLine Rser=9m SYMBOL cap 3872 -272 R0 WINDOW 123 24 77 Left 2 SYMATTR InstName C21 SYMATTR Value 100µ SYMATTR SpiceLine Rser=2m TEXT 5256 -40 Left 1 ;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 4.096V (CH0) and 5.5V (CH1); value 1\n 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, 1 for Burst,\n 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; TEXT 2000 -872 Bottom 2 ;LTM4676 - Dual 13A or Single 26A µModule Regulator with Digital Power System Management\nHigh Efficiency, Poly-phase µModule Step-Down Regulator with Power System Management\nInput: 5.75V to 16V Output: 1V @ 100A TEXT 5072 856 Left 2 !.tran 2m startup TEXT 1568 1136 Left 2 ;Notes: \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 © 2012 Linear Technology Inc. All rights reserved.