MIC5338 Datasheet, PDF(9/12 Page) Micrel Semiconductor – Dual 300mA μCap LDO in 1.6mm x 1.6mm Thin MLF®

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MIC5338 Datasheet, PDF (9/12 Pages) Micrel Semiconductor – Dual 300mA μCap LDO in 1.6mm x 1.6mm Thin MLF®

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Micrel, Inc.

For example, when operating a 3.3V/2.8V application

with an input voltage of 3.6V and 300mA at each output

with a minimum footprint layout, the maximum ambient

operating temperature TA can be determined as follows:

0.33W = (125Â°C â TA)/(92.4Â°C/W)

TA = 94.5Â°C

MIC5338/9

Therefore, a MIC5338-SMYMT application with 300mA

at each output current can accept an ambient operating

temperature of 94.5Â°C in a 1.6mm x 1.6mm Thin MLFÂ®

package. For a full discussion of heat sinking and

thermal effects on voltage regulators refer to the

âRegulator Thermalsâ section of Micrelâs 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

June 2010

M9999-063010-A

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