Part Number: LM3485-Q1 We are designing a 13V-30Vin / 12Vout buck converter using LM3485Q1MM/NOPB IC. In the first revision of our design, the converter was working with no issues except for the PMOS heating too much for our requirements (~60C temp rise…
Part Number: LM3489-Q1 Other Parts Discussed in Thread: LM3485 , LM3489 Reference the latest LM3489-Q1 datasheet: SNVS443C –MAY 2006–REVISED DECEMBER 2016
On page 15, The equations for the inductor ripple as a function of output current is:
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Hello Matthew,
The original LM3485 is still orderable:
www.ti.com/.../samplebuy
The difference that the LM3485Q1MM has is that this part number is for the Automotive Qualified version of the original LM3485. The additional Q1 in the part number…
Hi,
I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria.
As an example if you use a UC3842 it is a simple…
Gary,
Most any of our power controllers with dual output capability will provide the control. See attached document starting at page 50 with the dual output controllers on page 53 and 54 and choose what features you want.
Regards,
John
