4A - Ultra low noise regulator LT3042 based with synchronous rectifier - evotronix.eu

[iTiberius]

4A - ULN regulator LT3042 based, with synchronous rectifier - evotronix.eu

Zeno MKII - ultra low noise regulator based on LT3042 and powered by synchronous rectifier - Saligny LC inside 🙂
This is perfect regulator for RPi projects, Shigaclone, digital section in any DAC, etc.

Specs:
- input min.6Vac up to 14Vac, max.16Vac
- output any voltage up to 15Vdc
- max output sustained current 4A

Output voltage can be changed by R7 value.
R7 = Vout x 10Kohm


PCB + Saligny LC = 30euro shipped by tracked mail envelope 8euro.
Full mounted = 65euro shipped by tracked small parcel 22euro EU, 38 euro worldwide.
For EU citizens, 19% VAT is not included and will be added at the end of your invoice.
For EU VAT registered companies, there is no VAT.
For outside EU citizens there is no VAT.



Invoiced payment by PayPal - fee ~4%, or bank transfer.

Regards,
Tibi

 

[iTiberius]

Bill of materials

Q1 and Q2 = D45HV10 https://ro.mouser.com/ProductDetail...=/ha2pyFadugUyVlJyf9YZrQWhbsOCwzkm2ayYSAv3Lo=
U1 = LT3042 https://ro.mouser.com/ProductDetail/Analog-Devices/LT3042EMSEPBF?qs=oahfZPh6IAJ3XP16d20ITw==
H1 = Saligny LC We make electronics ! – Evotronix SRL
C1 = 220nF https://ro.mouser.com/ProductDetail...CL21B224KBFNNNG?qs=hqM3L16%2Bxld2kKInBt3c6Q==
C2 = 4,7uf up to 10uF https://ro.mouser.com/ProductDetail/Taiyo-Yuden/TMK316BJ106ML-T?qs=PzICbMaShUdvycVv5WY8BA==
C3 = 100pF https://ro.mouser.com/ProductDetail/KEMET/C0805C101J1GAC?qs=FNkb5H4qGKzaWeO1TxCWuw==
C4 = 2200uF up to 4700uF https://ro.mouser.com/ProductDetail/KEMET/ESK228M025AL4AA?qs=907G%2Bm7SbTtSWk9xR6Lf4Q==
C5 and C6 = 10uF https://ro.mouser.com/ProductDetail/Taiyo-Yuden/TMK316BJ106ML-T?qs=PzICbMaShUdvycVv5WY8BA==
C7 = 1nF silver-mica https://ro.mouser.com/ProductDetail/Cornell-Dubilier-CDE/MC22FA102J-TF?qs=jcW0T6%2B8ruOElokCIOHBFg==
R1 = 22ohm https://ro.mouser.com/ProductDetail/Panasonic/ERA-6AHD220V?qs=MNPzkKEzRtQTWqg2JSKn2A==
R2 = 10ohm https://ro.mouser.com/ProductDetail/Susumu/RR1220Q-100-D?qs=U7dmUkNviFtO6MBkyiGCwQ==
R3 = 150K https://ro.mouser.com/ProductDetail/Panasonic/ERA-6AED154V?qs=MNPzkKEzRtS0ElR%2BJBXi5Q==
R4 = 51K https://ro.mouser.com/ProductDetail/Yageo/RT0805FRE0751KL?qs=bUcvJdG3ZnGXwTQrVLS2hQ==
R5 and R6 = 0.1ohm https://ro.mouser.com/ProductDetail...=sGAEpiMZZMvdGkrng054t/m2492j4yYicF8NrxZh8/E=
R7 = 18K for Vout= 1,8V https://ro.mouser.com/ProductDetail...=sGAEpiMZZMvdGkrng054t8AJgcdMkx7xZjioDJCIBjU=
R7 = 33K for Vout= 3,3V https://ro.mouser.com/ProductDetail...=sGAEpiMZZMvdGkrng054t0uOsFOTJMhb9YjWfnP2P98=
R7 = 51K for Vout= 5,1V https://ro.mouser.com/ProductDetail...=sGAEpiMZZMvdGkrng054t8AJgcdMkx7xVmK2810IXNo=
R7 = 82K for Vout= 8,2V https://ro.mouser.com/ProductDetail...GAEpiMZZMvdGkrng054t%2BRNGJdg958RnO9qd21UtnI=
R7 = 91K for Vout= 9,1V https://ro.mouser.com/ProductDetail...EpiMZZMvdGkrng054t%2BRNGJdg958Rm%2BCPtFwCe1M=
R7 = 120K for Vout= 12V https://ro.mouser.com/ProductDetail...GAEpiMZZMvdGkrng054t%2BRNGJdg958RbIlrufrkTyQ=
R7 = 150K for Vout= 15V https://ro.mouser.com/ProductDetail...GAEpiMZZMvdGkrng054t%2BRNGJdg958Rk3R2U7UUXT0=
J1 and J2 https://ro.mouser.com/ProductDetail...GwLNS671%2BihbSDEWenABxL9VkeZA/TWTLLzH10izg==
or https://ro.mouser.com/ProductDetail...=sGAEpiMZZMvPvGwLNS67143eXz6yLKIOazTU4/SaOkQ=

Regards,
Tibi

 

[euro21]

For EU no 19% VAT included.

I think the "no" is typo.

PCB + Saligny LC = 30euro shipped by tracked mail envelope 8euro.
Full mounted = 65euro shipped by tracked small parcel 22euro EU, 38 euro worldwide.
For EU no 19% VAT included.
Outside EU there is no VAT.

IMHO indication of the gross price would be better.

 

[iTiberius]

Thank you for observation. I have corrected.
For EU citizens, VAT is not included and will be added at the end of your invoice.

Regards,
Tibi

 

[trobbins]

Tibi, just from the top view of the pcb it looks like the LT3042 pin 9 is not connected directly to the main bulk output cap '+' pad, and the regulator input is not taken directly from the large bulk e-cap '+' terminal. Was that intended, given the module is marketed as 'ultra low noise' ?

 

[iTiberius]

Trobbins,
Yes, the way that pin 9 is sense pin and make a Kelvin connection to one of the ceramic output capacitors. It was intentionally made such way.
Regulator input is taken trough R1. This limit current trough LT3042 to ~60mA.

Regards,
Tibi

 

[poolball69]

hi do you have any Zeno mk2 20amp or equivalent available