MIC5335 Datasheet, PDF (9/10 Pages) Micrel Semiconductor – Dual, High Performance 300mA UCap ULDO

Micrel, Inc.
output with a minimum footprint layout, the maximum
ambient operating temperature T_A can be determined
as follows:
0.39W = (125°C – T_A)/(100°C/W)
T_A=86°C
Therefore, a 2.8V/2.5V application with 300mA at
each output current can accept an ambient operating
MIC5335
temperature of 86°C in a 1.6mm x 1.6mm Thin MLF^®
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” subsection of Micrel’s Designing
with Low-Dropout Voltage Regulators handbook. This
information can be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
January 2007
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