Hello,
I'd like to use the TPS61256 as a 5V regulator. It takes in 3.2-4.2VDC from a battery or 5DC when connected to USB. I want 5V on the output regardless of the voltage on the input. This regulator is going to drive a laser at 5V and < 15mA. I want to adjust the brightness and avoid mode hopping by modulating the output (1KHz - 10KHz) of the TPS61256 with an I/O pin on the CC2640r2 as shown in the schematic below. My question is should I attach BP to ground in this case or to the modulation signal? I don't see a frequency response curve for this device making me wonder if this device is intended to be modulated. Is this the correct device for my application?
Thanks for your help.
Patrick