TIDT387 March   2024 LM25148-Q1 , LM74910-Q1 , TPS389006-Q1 , TPS62874-Q1 , TPS62875-Q1 , TPS62876-Q1 , TPS62877-Q1 , TPS746-Q1 , TPS7B69-Q1

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
  6. 2Testing and Results
    1. 2.1 Efficiency and Power Loss Graphs
    2. 2.2 VCCINT - Core Rail Current Sharing Tolerances
    3. 2.3 Thermal Images
    4. 2.4 Dimensions
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence
    5. 3.5 Front-End Protection (FEP) Test Results

Output Voltage Ripple

Figure 3-78 to Figure 3-23 show the output voltage ripple of the converters at the corresponding input voltages and various load currents.

GUID-20240212-SS0I-9VNW-PGPQ-W4DGLJ3SJCWN-low.svgFigure 3-12 5V Pre-Regulator Buck Output Voltage Ripple, 13.5V Input, 12A Load
GUID-20240212-SS0I-N7TW-65X8-HHPM4WW4CLDZ-low.svgFigure 3-14 VCCINT Rail Output Voltage Ripple, 5V Input, 0.8V Output, 39A Load
GUID-20240212-SS0I-WRGS-0ZBK-PQ0C1KKLZMLJ-low.svgFigure 3-16 VCCO Output Voltage Ripple (PMIC_Buck1), 5V Input, 1.0V Output, 3A Load
GUID-20240212-SS0I-SDLL-V0XD-9VLW2D0PKKFJ-low.svgFigure 3-18 VCCAUX Output Voltage Ripple (PMIC_Buck2), 5V Input, 1.5V Output, 1.1A Load
GUID-20240212-SS0I-TMJ4-DTMP-7SNMG8TXHSHV-low.svgFigure 3-20 GTAVCC Output Voltage Ripple (PMIC_Buck3), 5V Input, 0.88V Output, 0.7A Load
GUID-20240212-SS0I-GNMB-26DM-P03MCM1PGPPQ-low.svgFigure 3-22 GTAVTT Output Voltage Ripple (PMIC_Buck4), 5V Input, 1.2V Output, 1.3A Load
GUID-20240212-SS0I-CNFP-21B7-BCBZCWHJGQC2-low.svgFigure 3-13 VCCINT Rail Output Voltage Ripple, 5V Input, 0.8V Output, No Load
GUID-20240212-SS0I-ZJ1T-TKHG-BXZBVGVL0QMF-low.svgFigure 3-15 VCCO Output Voltage Ripple (PMIC_Buck1), 5V Input, 1.0V Output, No Load, PFM Mode
GUID-20240212-SS0I-H8LB-P5RR-FGN15ZPLHGM1-low.svgFigure 3-17 VCCAUX Output Voltage Ripple (PMIC_Buck2), 5V Input, 1.5V Output, No Load, PFM Mode
GUID-20240212-SS0I-7JKH-WVPX-S07D7NVP82HX-low.svgFigure 3-19 GTAVCC Output Voltage Ripple (PMIC_Buck3), 5V Input, 0.88V Output, No Load, PFM Mode
GUID-20240212-SS0I-FKCR-131J-12RVSBGGWGZ9-low.svgFigure 3-21 GTAVTT Output Voltage Ripple (PMIC_Buck4), 5V Input, 1.2V Output, No Load, PFM Mode
GUID-20240212-SS0I-RBHH-HJWD-QNF99HNMDDMX-low.svgFigure 3-23 GTAVCCAUX Output Voltage Ripple (LDO), 5V Input, 1.5V Output, 0.05A Load