Hi Eric,
Thanks for suggesting TPS62122. I am thinking about increasing RF power later on based on RF range testing. If I have to increase my RF power so as to get more RF range, then TPS62122 (with 75mA) may not be sufficient. In that case, can I get…
Part Number: BQ25504 Other Parts Discussed in Thread: TPS63030 , , TPS62122 Like the title alludes, I have two separate IC's, both TI parts as well and tied to the same voltage source, to get a 1.9 V rail and 3.0 V rail for the rest of my design. I know…
I will be using a 3s Li-ion battery and charging will be via USB 2.0 or a USB power adapter. My circuit will require both a +12V and +/-5V regulated power output.
I was originally looking at the BQ25713 for its NVDC regulated system voltage as you mentioned…
Hi Kenny,
yes you are right that DC/DC converter can be more efficient that LDO. TPS62122 can be used in your application to generate regulated output 3.3V.
You can estimate efficiency of DC/DC converter from datasheet TPS62122, page 15 Figure 10 is…
Other Parts Discussed in Thread: TPS62120 , TPS62122 Hi,
We are evaluating TPS62120 High efficiency buck converter for our product which is designed for low power consumption. Since datasheet does not specify any thermal related data or graph , need to…
Other Parts Discussed in Thread: TPS62122 Hi,
I have some question regarding the TPS62122EVM , the eval board for the
TPS62122.
1) On page 3 of the EVM datasheet it says that certain pins such as vout (J4) and ground (J3) need to be twisted and kept as…
Other Parts Discussed in Thread: TPS62122 So I replaced the two resistors in my tps62122EVM eval board with new ones. R1 is 499K and R2 is 180K, so I expected vout to be 3 volts but it is still only 1.8V. The input voltage is 5 volts. I used the formula…
Other Parts Discussed in Thread: TPS62122 , TPS62730 , CC1120 We just introduced CC112x in series production. The application uses old transparent legacy mode, where we have thousands of old devices out in the field (both RX and TX). Customers order both…
Hi,
the pictures of your Spectrum-Analyzer shows clearly that the switching frequency is modulated onto your carrier.
You stated, that you see a ripple of ~100mV @ 2MHz at the V CC rail, that the TPS62122 supplies. What kind of inductor and C OUT did you…
