TIDT251A August   2022  – January 2023 TPS61288

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Power On, Power Off

Efficiency Data

Table 2-1 details the efficiency data without a current-sharing circuit.

Table 2-1 Efficiency Data Without Current-Sharing Circuit
VIN (V)IIN (A)VOUT (V)IOUT (A)PIN (W)POUT (W)Efficiency (%)
3.29370.3971.308311.97580.1001.197491.53%
3.30001.5455.098511.97720.4004.790593.96%
3.29993.07910.160411.97040.8059.632294.80%
3.29974.54214.987111.96871.19514.298695.41%
3.29956.07120.031411.96741.60019.143895.57%
3.29967.61725.132711.96712.00523.990095.45%
3.29959.11830.085211.96642.39428.644395.21%
3.299510.68935.268111.96602.79833.478394.93%
3.299312.28340.525811.96613.20338.324994.57%
3.299313.83145.632011.96593.59242.979894.19%
3.299215.46151.008711.96613.99847.837993.78%
3.225017.84557.550111.97704.39552.638991.47%
3.213020.59166.158911.98004.99559.840190.45%
3.79500.3391.286011.97640.1001.197493.12%
3.80011.3385.084511.97850.4004.790994.23%
3.80002.67210.153511.97040.8059.632294.87%
3.79973.93514.952011.96981.19514.299995.64%
3.79975.25319.959911.96911.59919.135295.87%
3.79956.58125.004811.96832.00423.981195.91%
3.79947.86729.889911.96782.39428.647795.84%
3.79959.21134.997311.96742.79833.482195.67%
3.799410.56640.144811.96703.20338.327695.47%
3.799411.88245.144111.96703.59342.994895.24%
3.799313.26150.383011.96713.99847.841994.96%
3.740015.06156.328111.97304.39552.621393.42%
3.733017.28864.536111.97404.99559.810192.68%
4.19570.3051.281811.97660.1001.197493.42%
4.20011.2055.061111.97860.4004.791094.66%
4.19992.40910.117611.98160.8049.629995.18%
4.19993.55614.934711.97031.19514.300595.75%
4.19984.74319.919511.96971.59919.136296.07%
4.19975.93724.933711.96922.00523.994296.23%
4.19957.09229.783111.96852.39428.649296.19%
4.19958.29634.839111.96782.79733.472096.08%
4.19949.51139.940111.96773.20338.330095.97%
4.199410.68744.879411.96773.59242.986295.78%
4.199311.91650.039411.96743.99847.843095.61%
4.146013.44155.726411.97104.39552.612594.41%
4.136015.38363.624111.97004.99559.790293.97%

Table 2-2 shows the efficiency data with an external amplifier current-sharing circuit.

Table 2-2 Efficiency Data With External Amplifier Current-Sharing Circuit
VIN (V)IIN (A)VOUT (V)IOUT (A)PIN (W)POUT (W)Efficiency (%)
3.29360.4001.319012.02380.1001.202291.14%
3.30001.5565.134812.02080.4004.807993.63%
3.29983.11110.265812.01390.8049.655994.06%
3.29974.57315.089612.01651.19514.355795.14%
3.29956.09920.123912.01731.60019.223795.53%
3.29957.65525.257412.01542.00524.086995.37%
3.29959.16230.230112.01312.39428.756095.12%
3.299510.74335.446112.01292.79833.609494.82%
3.299412.36840.806512.01193.20438.482994.31%
3.299313.93345.969112.01133.59243.142793.85%
3.299215.57451.382112.00993.99848.012993.44%
3.221017.81657.385312.01604.39552.810392.03%
3.219020.68066.568912.05104.99560.194790.42%
3.79470.3461.314312.02550.1001.202491.48%
3.80001.3455.111012.02180.4004.808294.08%
3.79992.68610.206612.01640.8069.680494.84%
3.79983.98915.157512.01331.19514.351994.69%
3.79965.27920.058312.01521.59919.208995.77%
3.79966.61125.119012.01422.00524.084395.88%
3.79957.90430.031512.01262.39428.754995.75%
3.79959.25435.160212.01102.79833.604195.57%
3.799510.61640.335612.00953.20338.463895.36%
3.799411.93645.349612.00793.59243.130495.11%
3.799313.32350.618312.00753.99848.003294.83%
3.729015.22656.777812.04504.39552.937893.24%
3.717017.50665.069812.04704.99560.174892.48%
4.19560.3081.294112.02560.1001.202492.91%
4.20011.2115.086312.02210.4004.808494.54%
4.20002.42110.168112.01840.8059.670895.11%
4.19993.59815.111212.01191.19514.350294.96%
4.19974.78320.087112.01421.60019.218795.68%
4.19965.96525.050812.01312.00424.071096.09%
4.19967.12529.922012.01142.39428.751996.09%
4.19948.33535.002312.00962.79833.600295.99%
4.19949.55340.116912.00763.20338.457795.86%
4.199410.73745.089412.00663.59243.126095.65%
4.199411.97150.270912.00523.99847.994495.47%
4.138013.56156.115412.03504.39552.893894.26%
4.129015.52864.115112.03404.99560.109893.75%