tlv61220 output current setting

you mean the resister in series with led? maybe equal to (3.3V-3.2V)/120mA. and please make sure the TLV61220 can support 3.2V/200mA, which depend on the input voltage.

thanks

jasper li

what i meant is the resistors as u mentioned in datasheet i.e., Vout to FB & FB TO GND.(r1 &r2)

I want to know the changes to drive 3.2v/120mA

my input voltage is 1.2V to 2.8V

what  i have to do for changing the output cerrent .

Either it can be change the capacitors or resistors(i/p or o/p)

thanking you

naidu

TLV61220 can't drive 3.3V/120mA from 1.2V input.and i would suggest TPS61020. 

if possible, apply an EVM to evaluate the performance before design your project. 

jasper li

ok,may i know the minimum input voltage to drive the 3.2v/120mA.

and minimum switching frequency of tlv61220

maybe Vin=3.1...... i don't suggest to use this device to support 120mA output current.

Boost Converter Solution

jasper li

can u suggest what is the maximium output current of tlv61220?

Please refer to the figure 1, 2 in the datasheet page 6 for the maximum output current. thanks

jasper li