2 layer board of 0.39 x 0.39 inches (10.0 x 10.0 mm)
Uploaded:
June 13th 2016
Shared:
December 13th 2017
Total Price:
$0.75
-1.35V LDO regulator for to modify a Pentax Spotmeter 1º/21º (tested on version II).
You will need two resistors: a 100kOhm and a 13.7 kOhm, both in SMD 0603 package, and a 2.2uF capacitor (though I used a 10uF because the 2.2uF was out of stock).
Here is the list of components that I used:
…
-1.35V LDO regulator for to modify a Pentax Spotmeter 1º/21º (tested on version II).
You will need two resistors: a 100kOhm and a 13.7 kOhm, both in SMD 0603 package, and a 2.2uF capacitor (though I used a 10uF because the 2.2uF was out of stock).
Here is the list of components that I used:
LDO regulator - TPS72301DBVR
Tantalum cap - F381A106MMAAH1
100kOhm res - ERJ-3EKF1003V
13.7kOhm res - ERJ-3EKF1372V
Note that the PCB has pads for an input capacitor as well, but it is not needed (in fact, it is not recommended, since when I tried it the circuit was not working.)
You can find some pictures of the board in the spotmeter on my blog.
Show full description
-1.35V LDO regulator for to modify a Pentax Spotmeter 1º/21º (tested on version II).
You will need two resistors: a 100kOhm and a 13.7 kOhm, both in SMD 0603 package, and a 2.2uF capacitor (though I used a 10uF because the 2.2uF was out of stock).
Here is the list of components that I used:
…
-1.35V LDO regulator for to modify a Pentax Spotmeter 1º/21º (tested on version II).
You will need two resistors: a 100kOhm and a 13.7 kOhm, both in SMD 0603 package, and a 2.2uF capacitor (though I used a 10uF because the 2.2uF was out of stock).
Here is the list of components that I used:
LDO regulator - TPS72301DBVR
Tantalum cap - F381A106MMAAH1
100kOhm res - ERJ-3EKF1003V
13.7kOhm res - ERJ-3EKF1372V
Note that the PCB has pads for an input capacitor as well, but it is not needed (in fact, it is not recommended, since when I tried it the circuit was not working.)
You can find some pictures of the board in the spotmeter on my blog.
Show full description
