Part Number: TPS7A25 Other Parts Discussed in Thread: TPS796 , TPS740 , TPS786 , TPS7A37 , TPS737 Tool/software: Dear forum
I need an LDO regulator similar to the TPS7A25 but with more output current and no active output discharge (couldn't find that…
Hi Harry,
This looks like phenomena know as dropout recovery. Basically, the gate voltage of the pass element starts rising after the output rises back, so there is a transitory period where RDS is stuck in the minimum resistance (like dropout) and…
Part Number: LP3852 Other Parts Discussed in Thread: LP3855 , TPS7A45 , TPS740 Dear Team,
I am using LP3852 in one of my application.
I/P 7V output 5V, Maximum current drawn from output is 1A. Below is my schematic.
May I know your comments/Suggestions…
HI An Thai,
Unfortunately, the TPS740 needs V BIAS to be ~1.7 TO 1.8V Higher than V OUT in order to properly drive the gate of the N-Channel MOSFET.
A device like the TPS7A84A can do this without the need for V BIAS .
Can this work for you…
Hi Nanjunda,
In order for me to help debug, please provide the requested scope shots of Vin, Vout, and if possible Iout. One of these scope shots should be a startup waveform.
If it is possible, disconnect the load from the TPS740. There may be a…
Dennis,
The TPS74012 is not available in DPT. TPS74001 is available in this package and the CAD symbol file is attached. Please let me know how I can help further.
Regards,
Kartik
2046.TPS74001_DPT_5.bxl
Hi,
I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria.
As an example if you use a UC3842 it is a simple…
Gary,
Most any of our power controllers with dual output capability will provide the control. See attached document starting at page 50 with the dual output controllers on page 53 and 54 and choose what features you want.
Regards,
John
