Part Number: LM25085 Hey Team,
I am simulating a Buck Converter using the LM25085 and have a persistent error as follows:
'ERROR(ORPSIM-15143): Voltage source and/or inductor loop involving V_Vin1. You may break the loop by adding a series resistance…
Part Number: LM25085 Hi,
Can I change the current limit for LM25085 during run time?
What I want to achieve is to keep the output voltage constant and just vary the output current. Is such configuration possible with LM25085?
Regards,
Nikhil …
Part Number: LM25085 Hi,
We have used LM25085 in our design with these specs:
V_in: 24V ( 120W)
V_out: 9V
Current Draw: 5A
Please see attached WEBENCH Design Report.
The issue we are facing is that our board heats up a lot when we try to draw…
Part Number: LM25085 Other Parts Discussed in Thread: TPS62135 Hello,
I have included my schematic and layout below.
Vin= 12V-16.8V (4S lithium battery) Vout= 12V Full load= 3A Fsw= ~1MHz
When running a stress test (Full load 3A for a full battery…
Part Number: LM25085-Q1 Other Parts Discussed in Thread: LM25085 , LM25141-Q1 , LM5146-Q1 Dear sIR/Mam,
i used LM28085-Q1 to build one DC-DC from 18V-25V to 15V/3.5A, but find the output voltage will go rise with the rise of Vin, can not be stable.…
Part Number: LM25085 Hello,
I have a problem about output voltage regulation with the COT LM25085. It's about line regulation. When I exceed 14 V on Vin, my voltage ouput regulation (8V2) is bad for the same load. See different pictures attached. The…
Part Number: LM25085 Other Parts Discussed in Thread: LM321 Hi, I am making a CC/CV board using LM25085 according to AN-2157 with the following spec:
1) Input Voltage: 22.8V ~ 25.2V
2) Voltage mode Output Voltage: 20V
3) Current mode Current Limit…
Part Number: LM25085 Hello,
I am trying to design a regulator using the LM25085 with the following design requirements:
Vin(min) = 10V
Vin(nom) = 12V
Vin(max) = 14V
Vout = 4.2V
Max load current = 4A
Min load current = 0A
Ambient temp …
Part Number: LM25085 Other Parts Discussed in Thread: LM3152 Hello,
It appears to me that the Efficiency of the LM25085 is poor…
Taken from WEBENCH,efficiency is around 70% at 8A.
We can’t proceed with such low performance.
Please advise.
…
Hi Mario,
The LM25085 is one possible controller solution for your power requirement. Note that the LM25085 is a COT-based controller, requiring the appropriate voltage ripple amplitude at the FB pin (and hence the recommended ESR of the output capacitor…
