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How to get a stable voltage with DCV01 series

Shiming Zhang
Prodigy 10 points
Other Parts Discussed in Thread: DCV010505D, DCR010505

I need to use DCV010505D to supply ±5V to a amplifier.

I set the Vs=5V.

 When there's no load , +Vout=+11.82V and -Vout=-11.78V.

When the amplifier is connected, +Vout=5.17V and -Vout=-7.82V.

Neither of them is ±5V as the expectation. I was wondering whether it's because the  output of DCV010505D is unregulated as the datasheet says.

I want to get stable ±5V output from DCV010505D, how should I design the extern circuit?

Thank you!

  • 0
    TI__Mastermind 38230 points

    The DCV010505D is a dual unregulated converter. Each polarilty   when  unloaded can be as high as 11-13V.. The 75% load characteristic ( 75ma load current per bus ) output voltage  on each bus can be in the range of  between +/-4.75V to +/-5.25V  at exactly 5V input voltage.

    The  alternative regulated converters would be two  DCR010505 each selected for + and - 5V .

    Tom