• LM61440-Q1: slew rate requirement for VIN and EN

  

  Chuqiang Wen

  TI Thinks Resolved

  Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Hi Expert, Customer is doing the worst case analysis for this device. There have two questions need your support. May I know if there have any slew rate requirements on the VIN and EN pin…

  • 17 days ago
  • Power management
  • Power management forum
Answered

• LM61440-Q1: output capacitor

  

  Ryan Wang

  Resolved

  Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Dear expert, Customer use LM61440 for both 2.1MHz and 400KHz case. TI recommend 3*22uF capacitors for 400KHz which is too big form them. They want to know whether they can change them to…

  • Resolved

  • 1 month ago
  • Power management
  • Power management forum
Answered

• LM61440-Q1: Power efficiency for light load

  

  Ryan Wang

  Resolved

  Part Number: LM61440-Q1 Dear expert, What is approximate efficiency with fSW = 400 kHz , input 4.5-16V，output 3.3V，output current 0.5mA? Thanks

  • Resolved

  • 4 months ago
  • Power management
  • Power management forum

• LM61440-Q1: E2E

  

  shyamjith k

  Part Number: LM61440-Q1 while i'm simulating LM61440AAS-Q1 by in SIMatrix its taking more time to complete the simulation, can you please tell me how to reduce the run time?

  • 5 months ago
  • Power management
  • Power management forum

• LM61440-Q1: QFN Package Acceptance Criteria

  

  Songzhen Guo

  TI Thinks Resolved

  Part Number: LM61440-Q1 Hi Experts, LM61440-Q1 is D-win in customer side. Now it's mass production status. Could you share the acceptance Criteria for QFN package in our product line? Due to the packaging type of QFN products, there will be residual…

  • 6 months ago
  • Power management
  • Power management forum

• LM61440-Q1: Light Load operation (PFM)

  

  ARUN Manikantan Indira

  TI Thinks Resolved

  Part Number: LM61440-Q1 Hi, What will be the minimum switching frequency when operated in Auto mode- Light Load operation: (PFM). Will it be less than 200 kHz.

  • 6 months ago
  • Power management
  • Power management forum

• LM61440-Q1: why inductor value is so large in datasheet

  

  Elec Cheng

  TI Thinks Resolved

  Part Number: LM61440-Q1 Hi Expert, I see in LM61440-Q1 datasheet, that the recommended inductor value is quite large. Actually via calculation =1000*(1-Vout/Vin)*K/(Fsw*K*Iout), the calculated value is about 5.46uH instead of 8.2uH. May you help explain…

  • 6 months ago
  • Power management
  • Power management forum
Answered

• LM61440-Q1: LM61440-Q1 standby mode application scenarios

  

  Meng Liu

  Resolved

  Part Number: LM61440-Q1 Hi Experts This device have standby mode and describe as below: I don't know which application scenarios need to use this mode? my customer want to know how to use this mode?

  • Resolved

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

• LM61440-Q1: “Peak Signal” and “Average Signal” at Conducted EMI plots

  

  Kazuhiko Hirano

  Resolved

  Part Number: LM61440-Q1 Hello, At Figure 10-42 of the datasheet, there are two plots called “Peak Signal” and “Average Signal”. What do you mean by the “Peak Signal” and “Average Signal” respectively? …

  • Resolved

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

• LM61440-Q1: mission profile

  

  Mona Guo

  TI Thinks Resolved

  Part Number: LM61440-Q1 Other Parts Discussed in Thread: LM61440 Hi team, Can LM51440 meet mission profile under below condition? (where Vin always on, and EN=L for 90% of time.) EN=L temp -40 23 40 75 85 time(hours) 7227 24090 78292 9636 1204.…

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

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