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  Kaloyan Raev

  • 8 days ago
  • Power management
  • Power management forum

  LP2985: Reverse polarity protection

  • Resolved

  Part Number: LP2985 Is there a recommended solution for reverse polarity protection, i.e
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  Tsukui Yusuke

  • 26 days ago
  • Power management
  • Power management forum

  LP2985: junction temperature when the output is short-circuited

  TI Thinks Resolved

  Part Number: LP2985 Hi, Please tell me how to calculate the junction temperature when the output is short-circuited. Customer conducted an output short circuit test under the following conditions. However, the device did not undergo a thermal shutdown...
• 

  Sandeep NS

  • 5 days ago
  • Power management
  • Power management forum

  LP2985: 3.3V is not going down to zero, even when the shut down pin is connected to a low pulse

  Part Number: LP2985 Hi, I want to control the 3.3V output with the help of ON/OFF pin. So i have use below circuit. Transistor BC817 Vin -12 V, Vout =3.3V But i am getting below waveform 3.3 is not touching 0V . What can be the issue...
• 

  Dane Zhang

  • 1 month ago
  • Power management
  • Power management forum

  LP2985: line transient question

  TI Thinks Resolved

  Part Number: LP2985 Hi team, when using the LP2985IM5X-3.0 NOPB chip, when measuring the input and output waveforms, it will appear at the moment of the input voltage, and the output voltage will have a momentary overshoot. Looking at the data sheet...
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  Egor Trapygin

  • 2 months ago
  • Power management
  • Power management forum

  LP2985: LP2985

  TI Thinks Resolved

  Part Number: LP2985 On my circuits from Texas also is absent marking from bottom side. This is normal or not?
• 

  Franz Schellhase

  • 1 month ago
  • Power management
  • Power management forum

  LP2985: Behavior when output voltage is short-circuited

  Part Number: LP2985 Hi team, Can you comment on the customer inquiry below, please? In the data sheet of the controller, diagrams (Figures 4, 5 and 6) are shown on page 7, which include the short-circuit current. In the specifications you will also...
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  user4005424

  • 2 months ago
  • Power management
  • Power management forum

  LP2985: How to calculate the stable region of LDO

  TI Thinks Resolved

  Part Number: LP2985 Hi， The datasheet of LDO would define the range of ESR of Cout in order to guarantee the stability. I wonder that how the ESR influence the stability of LDO and how to calculate this stable region. Thank you.
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  Sean Liao (Yu-Sheng)

  • 9 months ago
  • Power management
  • Power management forum

  LP2985: TI p-p solution to replace SCP51460SN33T1G

  • Resolved

  Part Number: LP2985 Hi sir, Pls kindly suggest TI p-p solution to replace SCP51460SN33T1G. Thanks
• 

  Egor Trapygin

  • 9 months ago
  • Power management
  • Power management forum

  LP2985: LP2985

  TI Thinks Resolved

  Part Number: LP2985 What s date code on my LP2985? I can not to find decoder liters in date code.
• 

  Songzhen Guo

  • 17 days ago
  • Power management
  • Power management forum

  RE: TPS7A05: Shorter start-up sequence device recommendation based on TPS7A05

  Hi Wilson, I find LP2985 can meet customer's requirement, the power up sequence can change though Bypass Pin. If BYPASS is connected to ground by 100pF capacitor. The turn-on time is less than 500us. But it bad for low noise. It also recommend 10nF...

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