TPS7A02: Output voltage issue on TPS7A0233PDBVR

Vijayasarathy N

Part Number: TPS7A02

Hi TI Team,

I have bought TPS7A0233PDBVR from TI E store.

I am getting an output of 3.97V [ on pin 5, of the SOT -23, 5 pin package], instead of 3.3V from the chip. Input voltage is 4.8V.

Have used 1uF ceramic caps on both input and ouput.

I am using the 2.8V variant from same family, TPS7A0228PDBVR, and that chip gives a steady 2.8V output voltage, from the same input voltage source of 5V.

I assume the chip is faulty.

Please suggest any remedies.

Best Regards

over 3 years ago

0 Stephen Ziel over 3 years ago

TI__Mastermind 29180 points

Hi Vijay,

Can you please provide a schematic for the TPS7A0233PDBVR version of the circuit?

Thanks,

- Stephen

0 Vijayasarathy N over 3 years ago in reply to Stephen Ziel

Intellectual 285 points

Hi Sephen

We had provided options on the board to control the EN pin using 0 ohms via an MSP430 [ which was supposed to be DNP]and also on more 0ohm , which was supposed to be populated.

We rectified the issue as both 0 ohms were soldered, removed one connecting to the msp430, and now the board and the LDO works flawlessly.

Thanks for the support.

Best Regards

Vijay

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TPS7A02: Output voltage issue on TPS7A0233PDBVR