Hi,
My customer needs drop out voltage data at 10mA with below different temp.
0℃, 10℃ and 55℃, could you please provide these, thanks.
Hi,
My customer needs drop out voltage data at 10mA with below different temp.
0℃, 10℃ and 55℃, could you please provide these, thanks.
Hello all,
I'm looking to drive a GSM module with TPS74801 at 3.6V. For the most part, the GSM module current would be below 0.6A. During the bursts of transmissions there would be sequences of 600 us repeating after 4.5ms where…
Hello, I am trying to find a pin/footprint-compatible alternative for TPS74801QRGWRQ1. The automotive qualification is desirable, but not essential. It…
Hi team,
My customer is using TPS74801 in their project, and they did OCP test. And find when they short the output to GND still get 1.5A current at output, does this caused because the TPS74801 use foldback current limit method…
Hi,
We currently use the TPS74801 with the recommended layout, but we are considering adjusting our stencil to exclude solder on the 4 extrusions suggested in the datasheet as shown below:
Would there still be sufficient thermal…
Hi Allan,
I'm reviewing your question and will get back to you within 2 days with further comments.
Thanks,
- Stephen
Hi Expert,
May I know what's the BIAS internal impedance? It seems it's current limit at BIAS cause once customer decrease the resistor divider, it works.
Regards,
Allan
Hi Expert,
Customer used TPS74801 with 3.3Vin and other 5Vbias power from 12V using resistor divider. However, there is no output and measured Vbias is only 0.6V. They have tried to use 5Vsupply directly for BIAS and it works ok…
Hi Danny,
I was not able to find information regarding RT5793. Feel free to send me email or DM about this specifically.
In regards to differences... TPS74801 is 1.5A and the TPS74901 is actually 3A and not 2A as you stated.
We do have some other devices…
Hi Zhizhao,
The soft start charging current is 440 nA typical, as listed in the datasheet. A low leakage capacitor is needed to here to prevent startup from taking longer than expected. If the capacitor has high leakage then it may take a very long time…
Hi team,
I have two questions need your help. Thanks !
1. Is there any spec requirement for the leakage current on SS pin. I found in datasheet, there only recommend to use low leakage cap. Do we have a max or min value for leakage…
Hello Kyle,
Thanks for your comments and sharing the tech docs.
Regards
Hi,
No a feed-forward cap (Cff) is not required for TPS74801.
It can help improve transient response, PSRR, and Noise, we have an app note on the pros and cons of using a Cff with an LDO if you are interested in learning more.
Hi TI experts,
Just wondering if a FF cap is needed for this part?
I don't see it from datasheet reference design. Please clarify.
Thanks.
Hi Oliver,
I would not expect the reliability of the component to change if it were operating in dropout, as the reliability is often based on operating at 55C. Operating in dropout at these current levels will not raise the device temperature very much…
Hello,
The load regulation provides the change in output voltage as a result of the output current. That data is provided in figures 3 and 4 in the datasheet. The current limit is not a foldback current limit but more of a "brick wall" current limit.…
Hi Team.
Hi Zhizhao,
The internal pass element is a MOSFET, so the dropout voltage is just the load current * Rds_on.
The Rds_on value is approximately linear as you see in figure 5.
If your load current is 50% of the max load, then yes you can take the 165mV and…
HI Team,
Datasheet shows that the VIN dropout max value is 165mV under 1.5A output current, so how about the max value when output current is 0.75A?
I also see another pic shows that the dropout voltage seems like linear with the…
Hello Respected,
A Gentle reminder on the request.
Please help to provide the shelf life data for below parts ASAP.
| Description | Manufacturer | MPN | Shelf life Duration |
| IC,LOGIC,SN74AHC1G125DCKR,SC-7 | TEXAS INSTRUMENTS | SN74AHC1G125DCKR | |
| IC,LOGIC… |
Hello,
Please help to provide the shelf life data for the below part ASAP.
| Item Code | Description | Manufacturer | MPN | Shelf life Duration |
| AMZH-MP-00000856… |
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