• 

  YangZhang

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

  RE: LM26003: 24V Output Burns the Regulator (28V Input)

  This is a 38V part. It shouldn't be damaged by 24V input voltage. Could you capture the waveform of input voltage and input current when the part is powered up? Depends on the layout, there could be large current spikes at the input side when it is...
• 

  YangZhang

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

  RE: LM26003: Sleep Mode Threshold for very light load in FPWM mode

  Please check the ON time of the switch tripped Tonmin condition or not. With higher Vin, Ton will reduce, and it may enter Tonmin condition. At Tonmin condition, Vout will drift up without any action, and it may trigger Sleep mode.
• 

  Masatoshi Oguri

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

  LM26003 Frequency Foldback behavior

  • Resolved

  Hello, One of my customer found the below behavior with LM26003 at light load. I guess
• 

  Ambreesh Tripathi

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

  RE: LM26003: DC Sleep Mode Threshold Current

  Hello , Both the Ilim as well as internal slope comp would have variation apart from inductor variation . Is the variation an issue with customer ? ---Ambreesh
• 

  Murray Roose

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

  RE: lm26003- GSM/GPRS application

  Hi Sergio, Because the LM26003 is a non synchronous device it doesn't have what I would call a true Forced PWM operation as the inductor current can never go negative because of the external catch diode. The FPWM mode on the 26003 basically disables...
• 

  Atsushi Yamauchi

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

  The design for via hole for LM26003

  I would like to confirm the design of via hole for LM26003. In the datasheet, there is the recommendation for via hole diametor of 0.3mm, but is not the recommendation for via arrangement (location). Could you please teach the recommendation about...
• 

  Atsushi Yamauchi

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

  Equations for the power of LM26003

  I would like to confirm equations for LM26003. - 1.33 for equation (23) - 0.095 and 0.0065 for (24) - 9.2*10^-9 for (25) Are they constant values, are't they? If they are not, do you have max/min values? Best regards, Atsushi Yama...
• 

  Samuel Conti1

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

  EN pin on LM260003

  Hello, I need a confirmation about EN pin on LM26003 : - Is it possible to apply a 150Hz (or more) PWM signal on EN pin ? The aim is to modulate a current source supplied by the LM26003. Best regards,
• 

  Atsushi Yamauchi

  • over 6 years ago
  • Power management
  • Power management forum

  Damping resister for LM26003

  I would like to confirm the damping resister for LM26003. The custmer want to reduce the noise and will try to add the damping resister between Boot pin and thr capacitor. Could you please teach the maximun value of th resister? They have used up...
• 

  Brani Dubocanin

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

  RE: TPS54340: Please suggest if it is right part as per the requirement

  Hello, For high efficiency solution we are also suggesting to evaluate following devices LM26003 and LMR23630. Both of these devices can meet your specifications and deliver possibly higher efficiency and cost effective solution for your operating conditions...

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