Power regulator

Wenjun Huang85261

Prodigy 150 points

Other Parts Discussed in Thread: TPS5450, LMZ13610, LM25117

I am finding the following specs.

Vin (nom) (V) = 28

Vout1 (V) = 2.5

Iout1 (A) = 10

TPS40060 and TPS40170 come out. When I read the datasheet. There is no mention of the Iout as 10A. So, how does the 2 products provide 10A as needed?

over 13 years ago

0 JohnTucker over 13 years ago

TI__Guru**** 191445 points

Those devices are PWM controllers. The current will depend on inductor and external MOSFET selection.

0 Wenjun Huang85261 over 13 years ago in reply to JohnTucker

Prodigy 150 points

What is the difference between PWM controller and TPS5450, which says the amount of output current? So TPS5450 is not a PWM controller? If so, what genre of power regulator is it?

0 JohnTucker over 13 years ago in reply to Wenjun Huang85261

TI__Guru**** 191445 points

TPS5450 has the power MOSFET integrated internally, so it is considered a converter rather than a controller. In general the switching FET(s) will determine the current rating (although you still need to size your inductor properly)

0 Joseph Wu over 13 years ago

TI__Guru* 97775 points

You may also want to consider some of the parts from the National Semiconductor catalog.

The LMZ13610 is a module that should work for those specs (10A, 36V input voltage, and low adjustable output voltage).

Also the LM25117 is a controller that might work also. As other controllers, you'd have to consider the MOSFETs in the design.

I couldn't find any converters that fit, but I'll post again if I come across anything.

Joseph Wu

Power management

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Power regulator