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• LM25148-Q1: LM25148-Q1

  

  ?? ?

  Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25148 Tool/software: Hello, everyone, When I used LM25148, there was a problem of no output of 2pcs SW, and one IC suffered serious ablation. The current bypass voltage is set to 12V. The input…

  • Resolved

  • 3 months ago
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• LM25148-Q1: LM25148 Rsense value calculation with the tool

  

  Alex Yeh

  TI Thinks Resolved

  Part Number: LM25148-Q1 Other Parts Discussed in Thread: LM25148 Tool/software: Hi team, Customer RD is facing the wrong calculation result on LM25148. Per actually test on system, they found it should be using minimum value to calculate the required…

  • 2 months ago
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Answered

• LM25148-Q1: Usage of external diode

  

  wang wan

  Resolved

  Part Number: LM25148-Q1 Tool/software: Hi, From the datasheet we know that there is an internal bootstrap diode. I don't understand why an external diode is added in the typical application. Is it meaningful?

  • Resolved

  • 2 months ago
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• 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

  • 6 months ago
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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…

  • 9 months ago
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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…

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  • 10 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

  • 10 months ago
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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

  • 10 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…

  • 10 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…

  • 10 months ago
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