Answered

• TPS51225C: Test points for factory test efficiency

  

  Far Hung

  Resolved

  Part Number: TPS51225C Hi Expert, My customer want to add the test points on PCB to increase the factory test efficiency . They want to know which pins and traces we don't prefer to put at test points.

  • Resolved

  • over 3 years ago
  • Power management
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Answered

• TPS51225C: TPS51225C Overshoot problem

  

  Paul Ren

  Resolved

  Part Number: TPS51225C Hello, My customer is using TPS51225C to generate 3.3V and 5V. However, they found the 3.3V output overshoot which leads to shut-down 2mS after start-up. Meanwhile, The 5V and 3.3V regulator outputs still work. Could you suggest…

  • Resolved

  • over 6 years ago
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Answered

• TPS51225C: The output voltage increase with temperature

  

  Edward Lee

  Resolved

  Part Number: TPS51225C Hi Sir, My customer recently encountered a problem with TPS51225C (generating 3.3V and 5V from 12V). The output voltage increases about 0.8~1V as the temperature rises from 25 degree to 60 degree. They have checked the following…

  • Resolved

  • over 6 years ago
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• TPS51225C: Ability of power supply using Charge pump

  

  na na78

  TI Thinks Resolved

  Part Number: TPS51225C Hi 1. What is the maximum power that TPS51225C can provide using charge pump? Depends on external charge pump circuit? 2. Could it be possible to generate 12V output? BestRegards

  • over 6 years ago
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• TPS51225C: 3.3V and 5V LDO output ok，but 3.3V，pwm output is not ok

  

  ANSON AN

  TI Thinks Resolved

  Part Number: TPS51225C hi team， I use TPS51225C in my design，the Schematic diagram is below： the AC_IN=19V，when power in，VREG3 and VREG5 output is ok，but the P3V3_S5 is fail， the Waveform of P3V3_S5 is blow： the Waveform of pin10…

  • over 6 years ago
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• RE: TPS51225C: TPS51225C don't generate 3.3 v and 5 V from the two switching controllers

  

  Yuchang Zhang

  Hi, Sorry for missing your post, if you are still working on this project and need technical support for this part, you can be free to send me E-mail(yuchang-zhang@ti.com). and let's close this post first, thanks. Yuchang

  • over 9 years ago
  • Power management
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• TPS51225C: Min and max data for Tss and Tssramp

  

  JohnTucker

  Part Number: TPS51225C Team, do we have the minimum and maximum values for Tss and Tssramp? The parametric table in the datasheet page 6 only lists typical values.

  • over 9 years ago
  • Power management
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Answered

• TPS51225C ramp up enable issue

  

  Patrick Chen

  Resolved

  Hello, Customer use LDO and resistor divider to 5V_EN1 signal for EN Pin control. But while input 12V, the EN Pin will be trigger EN threshold on 0.88V to device due to ramp up voltage of resistor divider of 5V_EN1. Customer don't use GPIO to contorl…

  • Resolved

  • over 9 years ago
  • Power management
  • Power management forum

• TPS51225C p2p solution with soft-start tuning

  

  Patrick Chen

  Other Parts Discussed in Thread: TPS51225C , TPS51275 , TPS51220 Hello, Do we have p2p solution with TPS51225C that include soft-start could tuning? Thank you. BR Patrick

  • over 9 years ago
  • Power management
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• WEBENCH® Tools/TPS51225C: Please add CSD17578Q3A for webench simulation (to replace CSD17551Q3A)

  

  Gim Song

  TI Thinks Resolved

  Part Number: TPS51225C Other Parts Discussed in Thread: CSD17578Q3A , CSD17551Q3A , Tool/software: WEBENCH® Design Tools Hi, I ran webench for TPS51225C (default settings) and the recommended 5V and 3.3V outputs high side mosfet is CSD17551Q3A. However…

  • over 8 years ago
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