Answered

• RE: LM27313-Q1: LM27313-Q1

  

  Lei Zhong

  Resolved

  Hi Mehmet, Yes, for LM27313-Q1 even the device is disabled when SHDN = 0, the Vout will equal to Vin (a little lower). Regards Lei

  • 1 month ago
  • Power management
  • Power management forum

• LM27313: No output

  

  user5883945

  Part Number: LM27313 Tool/software: Dears, Occasional no output, In severe cases, the IC may be damaged, for GND impedance, pin1 and pin5 are open circuits. Can you please check if there are any issues with the schematic.

  • 25 days ago
  • Power management
  • Power management forum

• LM27313: Switch Current - leading-edge blanking integrated or not?

  

  Jochen Katzer

  Part Number: LM27313 Tool/software: Hello, I need a new Booster Design to Boost 5V to 12V. I simulated the LM27313 in WEBENCH Power Designer. All seems ok but if I looked to the Iswitch Waveform I was surprised that there are current spikes up to 6A…

  • 2 days ago
  • Power management
  • Power management forum
Answered

• LM27313: Marking

  

  Jack Barret

  Resolved

  Part Number: LM27313 Other Parts Discussed in Thread: LM2731 Tool/software: Hello! Several suppliers offer to buy microcircuits with this marking. The markings have crooked symbols. Is this the original marking? Thank you! Best regards, Jack Barret

  • Resolved

  • 4 months ago
  • Data converters
  • Data converters forum

• LM27313-Q1: Will VSHDN affect SW output?

  

  Frank QIN

  TI Thinks Resolved

  Part Number: LM27313-Q1 Hi Team, If Vin=3.3V, VSHDN=10V. Will the SW output voltage increase? Thanks Best, Frank

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

• RE: LM27313: Unstable 12v output when driving display backlight.

  

  Lei Zhong

  Hi Alley, It's hard to calculate the Vout drop accurately. For a rough estimation, you may refer to the following equation. Regards Lei

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

• LM27313-Q1: LM27313 Webench and TINA results shows the different results

  

  Murugesan A

  TI Thinks Resolved

  Part Number: LM27313-Q1 Hi Team, The LM27313XQMF is used to regulate 12V from Vin range from 5.6 to 6V. TINA simulation shows dip in the output voltages regulation whereas in Webench there is no such Voltage dip for the load of 250mA. Here are the circuit…

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

• RE: LM27313: Output voltage not stable issue

  

  Lei Zhong

  Hi James, We can observe similar unstable waveforms without C9, when the SHDN pin is not pulled high stably . After connecting SHDN pin to high, the device can work normally when C9 = 0(removed), 68pF or 200pF. So please check whether the resistor between…

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

• LM27313-Q1: Output voltage overshoot at 5mA initial load condition.

  

  santhosh gowda

  Resolved

  Part Number: LM27313-Q1 Other Parts Discussed in Thread: LM27313 Hi, I am using lm27313 for converting DC 12V to 24V. My initial load current will be 5mA. Is there chance of output voltage spike to 40V and come back to 24V? Thanks.

  • Resolved

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

• LM27313: What is the ratio relationship between Vin and FB in LM27313 boost chip?

  

  Depeng Man

  TI Thinks Resolved

  Part Number: LM27313 Hello Team, What is the ratio relationship between Vin and FB in LM27313 boost chip? I have a 12V boost 24V power supply project on my side, currently I only see one in the specification book Δ VFB/ Δ The relationship between VINs…

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

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