Helen-san,
Thank you so much for your advice.
I will introduce PMP9772 and confirm the schedule at the customer side. I may ask you on-line.
Best Regards,
Akihsia Tamazaki
we don't have a device that can support this output power for 0.5V input. you can use two IC solution. a TPS610987 generating 4.3V to power the TPS61088 VIN pin, and TPS61088 is used for the main power converting. as the reference design " www…
Hi Peiyuanqing,
We have TPS61021A which can work with 0.5V-2.5V input voltage range and is capable of outputting 3.8V/1A from 1.8V. Do you want the device to output 1A from the input voltage down to 0.5V?. If the answer is yes, you need a much higher…
The reference design" www.ti.com/.../PMP9772" is similar to the requirement, but smaller output current. maybe we can try two TPS61088 in parallel to achieve 2A output.
You can refer to the TI design PMP9772 (TLV61220+TPS61088). As the peak indcutor current is about 2.8A, so you can use (TLV61220+TPS61089) . This combination has the same concept as PMP9772
If you want to directly use TPS61021A, then you need to low the output voltage to 4V. Thus the TPS61021A is just fit for your application.
If you can't low the output voltage to 4V, must have a 5V output, then you can refer to the TI design PMP9772. …
Here's the related schematic, but you need to make some change on the output voltage dividing resistor setting. For tthe detailed information , you can refer to the refernce design PMP9772..