Monday, August 10, 2015

Circuit Schematic 10A Adjustable voltage Regulator using MSK 5012 IC

Eltronicschool. - Here is one kind of voltage regulator circuit schematic with output more than 10 ampere. This is circuit schematic 10A Adjustable voltage Regulator using MSK 5012 IC. So, the based on this circuit schematic is MSK 5012 IC.

Circuit Schematic

Figure 1. Circuit Schematic 10A Adjustable voltage Regulator using MSK 5012 IC (Circuitstoday) 

Component Part
  1. C1 = 1uF/100V
  2. C2 = 470uF/50V
  3. C3 = 470uF/50V
  4. R1,R2 = 10K
  5. IC1 = MSK5012

Description

Circuit schematic like in figure 1 above is circuit schematic 10A Adjustable voltage Regulator using MSK 5012 IC. The output voltage of this circuit is adjustable from 1.3v to 36v DC.Resistors R1 and R2 are used for programming the output voltage.For all applications, value of R2 is fixed to 10K. The relationship between R1,R2 and output voltage Vout is according to the equation R1=R2(Vout/1.235)-1. C1 is a filter capacitor which is also a part of the gate drive circuit of the internal series pass MOSFET. Around three times the input voltage will appear across this capacitor and so the its voltage rating must be selected accordingly.C2 is the input filter capacitor while C3 is the output filter capacitor.

About MSK 5012 IC

MSK5012 is a highly reliable adjustable voltage regulator.Whose output can be programmed using two resistors. The regulator has a very low dropout voltage(0.45v @10A  )due to the usage of MOSFET with very low Rds (ON) as the internal series pass element.The MS5012 has a high level of accuracy and ripple rejection is around 45dB. It is available in a 5 pin Sip package that is electrically isolated from the internal circuitry. This give us the freedom to fit the IC directly to the heat sink and this sort of direct heat sinking improves the thermal dissipation.


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