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REG : TPS61235P boost up converter

K D V S Sowjanya
Prodigy 10 points
Other Parts Discussed in Thread: TPS61235P

Dear Sir/Madam,

                      We purchased TPS61235P boost up converter that is we got efficiency only 60 % and also have some problems.

1.  At 3V input,   circuit drawing 1A input current and 380mA output current at 4.8 V output.

2. After 1A input current means i am varying load resistance than device goes to shutdown.

              So please give some suggestions to rectify the problems.

Thanks and Regards,

Sowjanya

  • 0
    TI__Guru*** 146640 points
    4.8V is too low for the TPS61235P (which is programmed to 5.1Vout), so there is likely a measurement or setup issue. Can you post your schematic and list the measured voltages and currents which give you 60% efficiency and where on the schematic each was measured at?