• 

  Alexandre Penaud

  • over 5 years ago
  • Power management
  • Power management forum

  RE: LM25575 Schottky diode failure on +12Vdc -> -12Vdc conversion

  Re, I have mistake to join you a plot of the -12V potential: All scopes have been performed with a differential voltage probe with a gain of 1/10. Regards, Alexandre
• 

  Dixit Zachariah

  • over 6 years ago
  • Power management
  • Power management forum

  LM25575 as a buck boost regulator

  • Resolved

  with the WEBENCH tool, LM25575 appeared to be a solution. Can -18V be obtained from +12V using a buck regulator
• 

  Diego de la Cruz1

  • over 6 years ago
  • Power management
  • Power management forum

  LM25575 current sense pin impedance

  • Resolved

  Could anybody that has access to a board with a LM25575 switcher be so kind to measure
• 

  Alexandre Penaud

  • over 6 years ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

  LM25575 inverting buck-boost mode

  • Resolved

  Hello, I am designing a +/-12VDC supply based on LM25575 converters used in cascade. The topology
• 

  Pascal Enz

  • over 7 years ago
  • Power management
  • Power management forum

  Input Current vs. Output Current LM25575

  • Resolved

  I'm using a LM25575 to deliver 3.3 Volts with a average load of 1A. It's all ok, but if the load
• 

  Gustavo Tenrreiro

  • over 8 years ago
  • Power management
  • Power management forum

  Voltage out of LM25575 (5V Vout), drops 0.5V with very little load

  • Resolved

  recommended a LM25575 for the 5V rail. My input is from a rectified 24VAC source. Without a load or very
• 

  mse256

  • over 6 years ago
  • Power management
  • Power management forum

  RE: LM25574 sync duty cycle

  Because the LM25575 input pin apparently has an active drive to ground, will that not charge the capacitor to the state where it will continue to hold the sync pin at ground when the internal circuitry reverts to weak pullup? Note that the datasheet recommends...
• 

  Go

  • over 8 years ago
  • Power management
  • Power management forum

  Question about the LM3150 ripple injection circuit

  • Resolved

  Hi, I'd like to ask about the need of external ripple injection circuit for LM3150. According to the attached PDF file page 14, It saids that we need the external ripple injection circuit when the output voltage is 12V or above for proper regulation. I get some questions as follows, ・Could someone...
• 

  John Bottrill

  • over 7 years ago
  • Power management
  • Power management forum

  RE: PWM chip selection

  Hi, I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria. As an example if you use a UC3842 it is...

  • 2013 Power Management Guide.pdf
• 

  John Bottrill

  • over 7 years ago
  • Power management
  • Power management forum

  RE: 110/220 VAC to 12 KVDC Push Pull supply?

  Gary, Most any of our power controllers with dual output capability will provide the control. See attached document starting at page 50 with the dual output controllers on page 53 and 54 and choose what features you want. Regards, John

  • 2013 Power Management Guide.pdf

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