Monday, November 5, 2012

Understanding SOp-8 Package Regulator

RT9173 SOP-8 Regulator concept

Normally a regulator has three pins(legs)

There are two types of regulator semiconductor components.
Either P-type regulator or N-type regulator.

But for Sop-8 type Regulator,it has 8 legs(4 pins on each side).

These Sop-8 regulator cannot be identified visually.Because there are many other components that look like it.

But in Sop-8 package regulator the Pin no:2 is always ground.
So with these simple test you can easily identify SOP-8 package regulator on motherboard.

Mostly these components are on laptop motherboard then on desktop motherboard.
On desktop motherboard there are three leg regulator.

See the image below,that will let you know how the SOP-8 package regulator looks:-----

regulator details

As per the image shown of regulator.

VIN pis is for power input.

GND pin is for ground.

VCNTL pin is for gate drive voltage.If gate drive voltage is increased,then out put voltage will increase.

REFREN is s reference voltage and chip Enable voltage.Enable voltage are required to activate the chip.If all voltages are received but enable voltage is not there,then regulator chip will not function.

VOUT is output voltage.

These details will help.

For more help related to motherboard troubleshooting,check the help links below:----

Troubleshoot Dead Motherboard

Troubleshooting NO Display Problem on Motherboard

Troubleshooting CPU Overheating Problem on Motherboard

Desktop Motherboard Cpu Fan Connector

No SMPS Power Good on Super I/O Chip

MCH OR ICH Heating on Motherboard

Desktop Automatically Turns ON

Motherboard Immediately Restarts

MotherBoard Will Not Start With 4-Pin ATX power connected

PC Motherboard System Hangs Or Very Slow

Colors Missing On Display

USB Port not working on Motherboard

Motherboard USB Connector Pin details

PS2 Port Not Working On Motherboard

Motherboard HDD not getting Detected

Fix For BIOS Corrupt


Faulty RAM slot on Motherboard

Audio Fault on Motherboard

Ethernet LAN problem on Motherboard

Understanding Components Used On Your Motherboard

Motherboard will not Turn ON due to faulty ICH RTC

Understanding Power Trench DUAL Mosfet