TPS61220 current output problem

HI

this device can't support 280mA output current, and OCP is triggered in your application condition.please have a look at TPS61020 series devce if need 280mA output current.

thanks

jasper li

Dear sir,

                Now,i try to get output Current=300mA ,output Voltage=3V from TPS61222 with Input voltage=1.5v & Load Resistance of 10ohm.

C1,C2=10uf(10v),L1=4.7uH,(R1=1.7M ohm,R2=380 K ohm as per 3v o/p calculation)

But i get following data;

i/p voltage=1.5V.O/p Voltage=6.7v,O/p Current=44mA

i/p voltage=3V.O/p Voltage=6.8v,O/p Current=150mA

i/p voltage=4.5V.O/p Voltage=6.8v,O/p Current=267mA

How can i get 3v o/p,300mA current from 1.5V input

Thanks

Rajesh..

The TPS61222 is a fixed voltage chip http://www.ti.com/lit/ds/symlink/tps61222.pdf 

look at page 3.  You cant change the output voltage on chip itself.

What is the maximum output current we can get at  1.8 to 2V input and 3V output using TPS61220. Or advice a boost converter for  300mA @ 3V output for 1.8 to 2V input.

please have a look at TPS61020 for 3V@300mA condition. thanks

jasper li