Step-Down Voltage Regulator ST1S10PHR - 0,8V - 15,3V 3A

DC-DC Converter type step-down (lowering voltage). Supply voltage: 2.5 V-18 V. Maximum current of 3 A. the Case SO8. Output voltage: 0.8 V and 15.3 V.

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Price 6,90 zł

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  • Voltage: 2.5 V to 18 V
  • Output voltage: 0.8 V and 15.3 V
  • Maximum output current: 3 A
  • Efficiency on the horizontal 90 %
  • Frequency: from 400 kHz to 1.2 MHz
Details in the documentation.


The pulse converters have much higher efficiency than linear regulators. But require additional external components. Framed incorrectly can be a source of interference


Schedule przestawiający the dependence of the efficiency of the system from current.



Example usage

A diagram showing the use of the system as a stabilizer of 5V.



The method of selection of coils and capacitors, have been described in detail in the documentation.

Resistors therefore, we believe that in the formula:


R1 = R2 x (Vout - Vfb) / Vfb


Vout - the output voltage that we want to achieve

Vfb = 0.8 V

R2 is typical recommended value is 20 ohms


For Vout = 5V, the value of R1 will be equal to 105 ohms.


To calculate the value of external components you can use the calculator available on the website



PCB design

When designing the printed circuit BOARD should pay particular attention to the ground wire in the system. Paths should be thick. Capacitors as close as possible to the contacts of the Converter. In the documentation the manufacturer recommends how you want to arrange elements.


Sugerowny PCB design.


  • Current 4 A
  • Stabilizer - Type2 switching
  • Stabilizer - Type: step-down


Posting the payment for the order on our account on a business day up to 13:00 means sending the goods on the same day!


The time of payment depends on the hours of ELIXIR session of the sender's bank and the recipient of the transfer (more information on this subject, for example on the website


The table presents available forms of delivery in Poland


Carrier and

Bank wire

by cash


Poczta Polska

terms of service

9,90 PLN17,90 PLN1-3 days

Kurier GLS

terms of service

14,90 PLN22,90 PLN

1-2 days

Paczkomaty 24/7 

terms of service

12,90 PLN-1-3 days

If the amount to pay for products exceeds 500 PLN
Delivery is for free!


  • Free delivery of orders over 500 PLN does not apply to parcels addressed outside of Poland.
  • Free delivery does not apply when changing orders.
  • The delivery period is counted in working days from the date of dispatch of the order.