Question: I'm a co-op student working on a hardware design for an industry client, and I'm trying to use a [TPS63000](http://www.ti.com/lit/ds/symlink/tps63000-q1.pdf) to get a Vout of 3.45V. Vin is 5V. When I power this circuit up, I read 5V on Vin but only 0.7V from Vout. [![TPS63000 Application Circuit](https://i.stack.imgur.com/vQ9VR.png)](https://i.stack.imgur.com/vQ9VR.png)

Here's the PCB design:
[![PCB design](https://i.stack.imgur.com/gjGLL.png)](https://i.stack.imgur.com/gjGLL.png)

I'm not sure what approach to take in troubleshooting this. Any help would be appreciated.

EDIT: Unfortunately I don't have easy access to an oscilloscope, but when I do, I will definitely try to confirm that there's a pulse across the inductor.
Yesterday I assembled another PCB, and I'm getting a very similar result. Vout actually stabilizes at 322mV, and does so with a high degree to accuracy. During startup, I do see Vout shift drastically, but always settles around 322mV. Sorry that that's not very much to go on, an oscilloscope will definitely help give a better picture. 

So it seems to me possible causes are: A. lack of R3/C3 on the Vin pin, B. narrow traces on the PCB, or C. bad chip. Thanks for all the responses so far.

Answer: 
A few guesses/pointers: -

* Try fitting link W1
* Check R1 isn't 1.8 kohm (or a wrong value)
* Is exposed thermal pad properly earthed?
* Have you got too much output load?
* Check that oscillations are running about 1350 kHz
* Is your meter working correctly?

Good luck.
I know this question is old, but Google brought me here on this exact topic and I see no concrete answer, I solved the issue myself, the error is on the feedback, the TPS63000 is a 3.3V (fixed regulator) and no set point is required, only direct feedback, however the circuit and pcb layout shown can accommodate both TPS63000 (fixed) and TPS63001 (adjust)

Solution for your circuit using a TPS63000 option, requires a zero ohm resistor for R1, so feedback is taken directly from the output, and omit R2.