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Integrated Circuit Marking 65 = 5G J3P

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rjcamatos
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Sirs,

I have a asus mainboard that have an integrated circuit labeled as: 65=5G J3P

This is an qfp-28 encapsulation.
I search on the places that i can remenber and i didn't found the datasheet on every where.
Thic IC is near a PCI EXPRESS 3.0 socket.
Where the hell i can find the datasheet?

Best Regards,
Ricardo Matos

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BTS_szerviz
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hi!

maybe:  PWM CONTROLLER ATK1602GQW RICHTEK WQFN-28L  or RT6576DGQW

 

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rjcamatos
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That's right its a PWM Controller, in this case is for the MOSFETs of 0,8V Raill, it comnect to source, gate and drain, now, gone try to find datasheet.

Thanks.

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rjcamatos
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Ok, for annotations pruposes im gone attach some pictures of the circuit.

The first picture is the 0,8V raill, the IC at the bottom is the PWM Controller 65=5G, on the top of the imagem we have the inductor and low and high mosfet's.

The second picture, is the 1Volt raill that can be located right up of the 0,8V Raill (near the PCI express socket), the PWM controller is at the bottom and it is a 5E=5E, at the top we have the indutor and the high and low mosfet's.

 

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BTS_szerviz
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Hi!

you are welcome!

A.

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rjcamatos
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Number of pins match, encapsulation match , but no datasheet for that integrated circuit.
going to check out if connected to the MOSFETs of the  PWM circuits.

.
 

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BTS_szerviz
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rjcamatos
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No, no......
It's a qfn-28 not qfn-20, im prety sure the ic is the one mentioned, but, what a hell there are no datasheet for that ic.

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rjcamatos
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Nop, it's not that datasheet.
Datasheet says:
Dual Adjustable Output :

CH1 : 2V to 5.5V
CH2 : 2V to 4V

And the output voltage is 0,8V.
The main board os working well, im just analysing.
 

 

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BTS_szerviz
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Hi!

What is the exact type of the mainboard?

A

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rjcamatos
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I attach the picture.....

File csatolás: 

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rjcamatos
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Its an Asus vivobook e406M.

Thanks for response.

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SzBálint
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**

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rjcamatos
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Thanks for response but, 
Nop, not that One.
is qfn-28 or an qfp-28 , but prety sure is qfp-28 packet.
I read someware um the internet that is from richtech but richteck dont give informations.
Só, where can i find the datasheet of 65=5g?

 

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