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  Yusuke Mukuno

  • 10 days ago
  • Power management
  • Power management forum

  LM5145: LM5145 comp pin voltage

  • Resolved

  Part Number: LM5145 Hi Expert, My customer have an issue about Vout drop. Could you please let me
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  Taketo Sato

  • 2 days ago
  • Power management
  • Power management forum

  LM5145: UVLO function with IBB configuration

  TI Thinks Resolved

  Part Number: LM5145 Hello team, I want to use LM5145 with inverting buck boost configuration; Vin = +26V, Vout = -43V. In this case, can we set UVLO by resistors, like datasheet figure8-3? My target is Vin(on) = +20V and Vin(off) = +18V. I would...
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  Timothy Hegarty

  • 1 day ago
  • Power management
  • Power management forum

  RE: LM5145: Mosfet is burning

  Hi Mehmet, Please send a schematic and a completed quickstart calculator for this LM5145 design. At such high duty cycle, the high-side FET will be the hotspot in this design. One thing to check is the inductor sat current - it should be well...
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  Ramachandran Sivanehru

  • 26 days ago
  • Power management
  • Power management forum

  LM5145: The MOSFETs and the inductor are getting hot even at no load condition

  TI Thinks Resolved

  Part Number: LM5145 Hi, LM5145RGYR I have designed a circuit using the Webech power designer. Vin = 48V; Vout = 24V; Iout = 5A; Fsw = 534-76kHz. During the 3.6A load condition, the components temperature were acceptable levels, but the components...
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  Akihisa Tamazaki

  • 1 month ago
  • Power management
  • Power management forum

  LM5145: LM5145 switching frequency setting

  • Resolved

  Part Number: LM5145 Hello Team, The customer would like to confirm whether LM5145 support
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  3378163

  • 1 month ago
  • Power management
  • Power management forum

  LM5145: CE Issue

  TI Thinks Resolved

  Part Number: LM5145 I have a CE problem at the regulator switching frequency on my network port. Input Power port is ok. I've yet to go into lab to investigate. I'm suspecting that switching noise is getting onto the ground or power plane. It...
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  Timothy Hegarty

  • 1 month ago
  • Power management
  • Power management forum

  RE: 48V to 12V Buck solution in server application

  Hi Ann, A single-phase controller like the LM5145 could do ~20A. This depends on the selected power stage components, maximum ambient temperature and airflow, etc. For higher currents, please consider the LM5143 as that can be configured as a...
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  CHO SR

  • 3 months ago
  • Power management
  • Power management forum

  LM5145: Vin Capacitor Capacity

  • Resolved

  Part Number: LM5145 Hi, The customer wants to change the vin capacitor due to supply and demand
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  user5956241

  • 2 months ago
  • Power management
  • Power management forum

  LM5145: LM5145 Bode Plot Question

  TI Thinks Resolved

  Part Number: LM5145 Hi Tier, I have design with LM5145 and test bode plot find some question need you help recommend. Do you know some reason can induce the gain response trace back to cross zero and fall again?
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  Jayce Luo

  • 3 months ago
  • Power management
  • Power management forum

  LM5145: Wrong Output Driver Signal

  TI Thinks Resolved

  Part Number: LM5145 Hi TI expert, LM5145 output wrong drive signal to outside MOSFET. Basic info: Input 50V, Output 5V, Load 10~15A. 200kHz switching frequency. The LO Signal: Still LO signal: The HO output: The LIM waveform...

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