LDO linear voltage regulator

Hello everyone,

I am currently working on a project that involves designing an electronic circuit board, and I require two regulators—one providing 5V, another providing 3.3V at the output. The input voltage is 7.4V. I have come across two regulator options, namely the ME6210A33PG and ME6210A50PG.

Before proceeding with my design, I would like to gather some information about the quality and performance of these regulators. Has anyone had experience using these regulators in their projects? Are they reliable and efficient in terms of voltage regulation and stability?

Any insights, recommendations, or alternative regulator suggestions would be greatly appreciated.

Thank you in advance for your assistance!

Moved to General Electronics.

Looked into the datasheets?
They will generally give you the info.

Thank you for your response!

Yes, I have looked into the datasheets of the ME6210A33PG and ME6210A50PG regulators. While they provide technical specifications, I was hoping to gather some practical insights and experiences from users who have used these regulators in their own projects.

Specifically, I am interested in knowing if these regulators have proven to be reliable and efficient in terms of voltage regulation and stability in real-world applications. Any information or feedback based on personal experiences would be valuable in helping me make an informed decision for my project.

Once again, thank you for your assistance!

I would advise looking for something like the AMS1117 family.
These seem a little strange from a quick glance at the datasheet.

I don't need an AMS1117 regulator because it consumes 2 mA.

Then the AMS1117 will supply only 2mA.

Plus I have had AMS1117 and they work flawlessly, I'm not sure many people have had your suggested regulator or they would of commented.

Many boards have an AMS1117, So the stands your wanted experience from users.

You mean because the quiescent
current of AMS1117 is 2mA?

I have used MCP1702. The quiescent current is only 2uA. But the output current is only 250mA max.

How much current does your project require at 5V and 3.3V?

You say you are worried about efficiency, but all linear regulators have pretty much the same efficiency, which depends on the input voltage, output voltage and current. DC-DC "buck" converters can be more efficient, except at very low average current.

1 Like

This looks like a knockoff of the Torex XC6210 series chip. The authentic datasheet claims a quiescent current of 35uA for the XC6210, while the Micro One ME6210 is claiming 1.5uA. I would be wary of Chinese knockoffs in general, especially when they make claims significantly better than the OEM device.

https://product.torexsemi.com/en/series/xc6210

Analog Devices, Texas Instruments, and Microchip all offer search engines that allow you to evaluate your voltage and current needs to the quiescent current requirement of the chip. If I am actually going as far as designing and fabricating a board, I personally stick with authentic chips from reputable sources.

1 Like

on the XC6210 regulator there is an ENABLE pin, I don't want to control the regulator, if I connect the Vin=5V pin with the EC pin, this produces problems ?

It depends on the specific chip type, A,B,C, or D.

There are HIGH - ACTIVE and LOW - ACTIVE options, and that determines if you connect CE to Vin or connect CE to Vss (GND). Also some require either a pull up or pull down resistor. Also you need to supply the chip with Vout + 1V so you need to connect 6V (6.5V max) to get 5V output.

You need to match your specific chip with the datasheet and follow the recommendations for resistors and capacitors as needed.

Hi, @lafdil

What is your project?
What is the application?
Do you really need low quiescent current?

Thanks... Tom.. :smiley: :+1: :coffee: :australia:

1 Like

the project is the design of a low consumption "data logger" electronic card for the agricultural sector

Google;

low power lora arduino data logger

Tom.. :smiley: :+1: :coffee: :australia:

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.