SLVUBX2A August   2020  – March 2021 TPS62912 , TPS62913

 

  1.   1
  2.   2
    1.     3
    2.     4
      1.      5
      2.      6
      3.      7
      4.      8
      5.      9
      6.      10
      7.      11
  3.   12
    1.     13
    2.     14
  4.   15
  5.   16
  6.   17
    1.     18
  7.   19
  8.   20
  9.   21

A Ripple Measurements With Mis-oriented Inductor

This section shows the output ripple measurement results when the inductor is not installed in its low-noise orientation. This was the case on the Revision A EVMs.
GUID-20210212-CA0I-TTSL-QLBV-JPBHBTCSS80B-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, DC Coupling, 50-Ω Termination With DC Blocker
Figure A-1 Output Voltage Ripple, Measured at J4 .
GUID-20210212-CA0I-4W12-QFRW-WKQ95VP1HCVN-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, DC Coupling, 50-Ω Termination With DC Blocker
Figure A-2 Output Voltage Ripple, Measured across C4 With 1x Probe.
GUID-20210212-CA0I-WF1T-8LPX-XLSPQJ5NWWSF-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, AC Coupling, High-Impedance Termination Without DC Blocker
Figure A-3 Output Voltage Ripple, Measured Across C4 With 10x Probe.
GUID-20210212-CA0I-TZ33-LN6L-6ZP9GCMFHPJR-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, DC Coupling, 50-Ω Termination With DC Blocker
Figure A-4 Output Voltage Ripple, Measured at J5.
GUID-20210212-CA0I-LQPG-7JZF-TLDG2HR3PDV6-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, DC Coupling, 50-Ω Termination With DC Blocker
Figure A-5 Output Voltage Ripple, Measured Across C7 With 1x Probe.
GUID-20210212-CA0I-PJ5S-PH3P-XWC3DJSBBNWS-low.jpg
VIN = 12 V, VOUT = 1.2 V, IOUT = 1000 mA, JP2 Open, Full BW, AC Coupling, High-impedance Termination Without DC Blocker
Figure A-6 Output Voltage Ripple, Measured Across C7 With 10x Probe.