Part Number: TPS40305 Other Parts Discussed in Thread: CSD18543Q3A
Tool/software:
I'm currently working on a USB hub that utilizes a TPS40305 to regulate the 5V bus voltage from a 12V input. I got the design from WEBENCH, with an IOUT Nominal of 10A…
Part Number: TPS40305 Tool/software: Hi expert,
I designed BUCK circuit using TPS40305 is controller.
Spec: Vin = 12V, Vout = 5V, Iout max = 10A.
I followed ref but when bringup, I meet some issues. I measured Vout and get 3.7V instead of 5V …
Part Number: TPS40305 Hello,
I've created the following Webench Design using the TPS40305 synchronous buck controller: https://webench.ti.com/appinfo/webench/scripts/SDP.cgi?ID=D6E17A44DAF5EC1F
The sudden drop in efficiency (see attachment) between…
Part Number: TPS40305 It looks like the BP to BOOT diode easily gets damaged in my circuit. When the circuit fails, BOOT is no longer charging, but there is still ~6.5V on the BP pin. On a working TPS40305 I measure a 0.68V diode forward voltage from…
Part Number: TPS40305 Hi
I'm trying to simulate the buck controller TPS40305, seems even the model test circuit is not working properly.
figures attached.
Can you help?
Thanks
Part Number: TPS40305 Hi, we make a buck controller topology in which USB PD input. This means input voltages are 5V, 9V, 15V, and 20V. The maximum current is 5A. We want, if the input voltage is 5V, İnput voltage will directly pass to the output. In…
Part Number: TPS40305 Other Parts Discussed in Thread: CSD17507Q5A , , TPS40304 , CSD17501Q5A , CSD17506Q5A Hi,
We have designed a circuit around the TPS40305DRCR.
Vin = 9V to 16V. Vin is connected to an external battery.
Vout = 5V/8A.
The MOS…
Part Number: TPS40305 Hello Team,
We are getting the 35MHz peak during the FCC-15B RE testing.
Here is the original thread link .
We have bypassed the input LC filter and looks like an improvement but that is not a major one that we can test in…
Part Number: TPS40305 Hello Team,
I am getting the EMI Peaks after adding the filter on the input side.
Here is the updated schematic.
Below is the result of the EMI noise.
Let us know the workaround to resolve the issue.
Part Number: TPS40305 Hi,
I am using TPS40305DRCR switcher IC to generate 3.3V from 5V input. It is designed to generate 3.3V with 9A load. The switching frequency is 1.2 MHz. When I connect an external load of 1A or more, I am receiving ripples at…
