• TPS54540B: Schematic Review Request for TPS54540B (Two Different Output Configurations)

  

  chulwan kim

  Part Number: TPS54540B Hello, I would like to request a schematic review for two different buck converter circuits utilizing the TPS54540B. Specifically, we need to ensure the design can mitigate or withstand sudden, momentary input voltage drops…

  • 3 months ago
  • Power management
  • Power management forum

• TPS54540B-Q1: Can not archive output current switching frequency like design

  

  Luong Vu

  TI Thinks Resolved

  Part Number: TPS54540B-Q1 I have 2 circuits with this IC: TPS54540BQDDARQ1 following WEBENCH input 8 - 20V : output 6V 3A input 8 - 20V : output 3.3V 1A Issues: with 6V 3A: can not archive 3A, output always down to 0 while output current…

  • 1 month ago
  • Power management
  • Power management forum

• TPS54540B-Q1: Need buck whose Iout(max) is 6A and pin to pin with TPS54540B-Q1

  

  Leo Ma

  TI Thinks Resolved

  Part Number: TPS54540B-Q1 Other Parts Discussed in Thread: TPS566250 Tool/software: Hi Expert, Have a good day! Does TI have buck whose Iout(max) is 6A and pin to pin with TPS54540B-Q1? Thanks. Best, Leo

  • over 1 year ago
  • Power management
  • Power management forum

• TPS54540B: TPS54540B abnormal waveform

  

  Rock Shao

  Part Number: TPS54540B Hi, The customer used TPS54540B in 24VDC input, output 5V/5A, the waveform was normal at 5V/3A, but when the load increases to 4A-5A, the frequency will rise and the waveform will become abnormal. Could you please help and confirm…

  • over 3 years ago
  • Power management
  • Power management forum
Answered

• TPS54540B: Duty cycle instablity at high load.

  

  Lionel U

  Resolved

  Part Number: TPS54540B Hello I'm using the TPS54540B to get 3.3V 5A from a 24V nom input power supply. Vin max=28.8V Vin min=19.2V Here is the schematics used : I've checked the open loop gain and phase margin here is : And the transient…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• TPS54540B-Q1: Circuit for 17V Output

  

  Priyanshu Vanigota

  TI Thinks Resolved

  Part Number: TPS54540B-Q1 Tool/software: Hello, Can you please review the design of TPS54540BQDDARQ1. I have attached a PDF file of the same. PFA. Awaiting for your valuable feedback Thanks TPS54540BQDDARQ1.pdf

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• TPS54540B: Thermal degradation characteristics

  

  Yogini Prathap

  Resolved

  Part Number: TPS54540B Other Parts Discussed in Thread: LMR14050 , Hi , What is the safe operating area for TPS54540B and LMR14050?. Are these IC able to give 25W output power @80 degC?

  • Resolved

  • over 3 years ago
  • Power management
  • Power management forum

• TPS54540B-Q1: Negative output topology with webench power designer.

  

  Dominique Tschantz

  TI Thinks Resolved

  Part Number: TPS54540B-Q1 Other Parts Discussed in Thread: TPS54540B Hello, Is there a possibility to use, to customize and to simulate the TPS54540B for a negative output voltage in Webench Power Designer tools ? This kind of topology : It seems…

  • over 2 years ago
  • Power management
  • Power management forum

• TPS54540B: TPS54540B differs from TPS54540

  

  Ken Chen39

  TI Thinks Resolved

  Part Number: TPS54540B Other Parts Discussed in Thread: TPS54540 , What is the difference between TPS54540B and TPS54540? Does the specification book not see the specific parameter difference? Is it an upgrade?

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

• TPS54540B: Foldback Frequency

  

  Brian Wang0928

  TI Thinks Resolved

  Part Number: TPS54540B Hello, Customer wonder to use this device in MD sector. Here there are few questions. please help to support. 1. Is these any method to control the current limit of the device? on the datasheet, the variation of the current…

  • over 4 years ago
  • Power management
  • Power management forum

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