• LM25148-Q1: Simplis model - LM25148

  

  Sandhya R

  TI Thinks Resolved

  Part Number: LM25148-Q1 Tool/software: Can anyone share the SImplis model for simulation purpose

  • 30 days ago
  • Power management
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• LM25148-Q1: Output ripple waveform question

  

  Victor Levandovsky

  TI Thinks Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25148 Hello I design LM25148 (LM25148QRGYRQ1) based DC/DC Vin = 9-30V Vout = 5V (6, 7.2 - options) Iout(max) = 10A Fsw=500 kHz, FPWM mode Primary, SSC On, Dual Phase Enabled (SYNCOUT Enabled) External…

  • 4 months ago
  • Power management
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Answered

• LM25148-Q1: maximum current

  

  Peter Xu

  Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25148 Hi team, My customer wants to know if our device can support the application below. Application: 12V to 3.3V maximum output current 30A(1us) 20A(100us) typical current 15A Fs 400kHz The load…

  • Resolved

  • 5 months ago
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• LM25148-Q1: VCC voltage at minimum operating VIN

  

  Isao Takigasaki

  TI Thinks Resolved

  Part Number: LM25148-Q1 Hi, What is the VCC voltage at minimum operating voltage of VIN, 3.5V? Best Regards, Taki

  • 5 months ago
  • Power management
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Answered

• LM25148-Q1: Minimum resistance value of RT

  

  Isao Takigasaki

  Resolved

  Part Number: LM25148-Q1 Hi, Does RT of this device have a limitation in the minimum value? If RT = 8k ohm, What is the switching frequency? Best Regards, Taki

  • Resolved

  • 5 months ago
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• LM25148-Q1: Minimum inductance value of Buck inductor

  

  Kiyoshi Koyama

  TI Thinks Resolved

  Part Number: LM25148-Q1 Hi Team, I'd like to know how to calculate the minimum inductance value of a buck inductor. I understand that Equation 9 in the data sheet is a recommended inductance value, and not the minimum value that will not cause subharmonic…

  • 5 months ago
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• LM25148-Q1: WEBENCH warning "Design update failed - This design is not stable due to phase margin either smaller than 35 or greater than 120." when current step is changed

  

  Isao Takigasaki

  TI Thinks Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25149 Hi, I run the WEBENCH on LM25148-Q1 with changing the value of transient response current step from 5A to 1A as shown in below. Then, the following warning message appeared. I checked…

  • 4 months ago
  • Simulation, hardware & system design tools
  • Simulation, hardware & system design tools forum

• LM25148-Q1: questions to tSS-INT(internal softstart)

  

  Soichi Nishimura

  TI Thinks Resolved

  Part Number: LM25148-Q1 Hi team, Our customer is asking a question to tSS-INT(internal softstart) spec. Is the internal soft-start up to what percentage of the set output voltage? Regards, Nishimura

  • 11 months ago
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• LM25148-Q1: Application issues of chips

  

  Tonyx.wu

  TI Thinks Resolved

  Part Number: LM25148-Q1 What is the specific range of current induced resistance values? Can 3mohm be the value of Rs?Can you provide a detailed explanation of the following calculation formula?

  • 11 months ago
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Answered

• LM25148-Q1: VCC/VDDA behavior during shutdown

  

  Matthew Trescott

  Resolved

  Part Number: LM25148-Q1 Hello, I have a couple questions I couldn't find answers to in the datasheet. Is the VCC regulator always on when VIN is applied, or is VCC disabled when EN is below 0.5 V? If VCC is disabled during shutdown, does this also…

  • Resolved

  • 11 months ago
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