Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.
Part Number: LM5158 Tool/software:
Dear Engineers,
I have designed a variable-output boost DC-DC converter (LM5158RTER) to step up 5 V to 40 V. However, after receiving the PCB, I noticed that the output is fixed at 4.98 V, even when adjusting the…
Part Number: LM5158 Tool/software: I'm considering implementing an isolated flyback converter of 60V and -60V double output rail using LM5158. I'm going to use the quickstart calculator provided by TI, but it's difficult to select Lm. Is there any product…
Part Number: LM5158 Other Parts Discussed in Thread: LM5185 Tool/software: Hi Team,
May I check if LM5158 can support PSR voltage feedback like LM5185? customer want reduce one aux channel.
Thanks & Regards
Eddie
Part Number: LM5158 Tool/software: Is there the way to control LM5158 SW pin voltage rising/falling time in the SEPIC configuration?
I measured the LM5158 SEPIC output voltage ( 20V ) directly at the output ceramic capacitors with extremely short ground…
Part Number: LM5158 Tool/software: Hello,
Please can you confirm minimum feedback current requirement for LM5158. My intention is to know the maximum permissible resistor values for the feedback network.
Part Number: LM5158 Tool/software: Hi, Staff
I'm designing boost convertor.
Vsupply range is from 25.5V to 46.0V
Vload range is from 47.05V to 49.96V.(Typ. 48.5V)
Target Fsw is about 500KHz.
In Vsupply is 46.0V and Vload 47.05V, PWM Duty is 3.25…
Part Number: LM5158-Q1 Tool/software: This is in continuation to the same below Previous E2E support https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1384756/lm5158-q1-boost-converter?ReplyFilter=Answers&ReplySortBy…
Part Number: LM5158-Q1 Tool/software: I have a PoE product where I am connecting all my devices in a daisy chain using PoE power. I am using the LM5158QRTERQ1 to boost and supply 52V to the PSE. The boost voltage is from 40V-48V input to 52V output with…
Hi Reddy,
I would recommend to keep some ceramic caps and dont change all to aluminum. They are needed for the higher frequencies.
You can use special types like shown in the appnote:
Regarding the input capacitors, please try to increase the total input…
