Unable to get Pololu 3.3V Step-up/down voltage regulator(S78F3) work

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Hi,
As can be seen in the image, I followed the instructions on the product page and made the following connections:

  1. Vin to batteries(about 4.3V)\
  2. Pull shutdown to Vin
  3. Connect GND to battery gnd
  4. Connect a 10k resistance at Vout and GND

However, when I used a multi-meter to measure Vout, it showed 0V. We also tested Vin-GND which is about 4.3V and Vshutdown - Vin, which is about 0V. So both were correct.

Is it due to wrong connections? or is this voltage regulator simply a faulty component?

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Hey mate, what happens when you remove that 10K resistor and take a reading?

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Just a sanity check: Are those connections soldered?

Also, FYI there is a integrated pullup resistor on NOT(SHUTDOWN) so you don’t need the external wire to enable the circuit. You disable the circuit by pulling NOT(SHUTDOWN) low.

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It works now. Didn’t solder pins and plugged into breadboard directly. Thanks mates.

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