MIC5309_08 Datasheet, PDF (9/11 Pages) Micrel Semiconductor – Low VIN/VOUT 300mA High PSRR ULDO with Ultra-Low IQ

Micrel, Inc.
To determine the maximum ambient operating
temperature of the package, use the junction-to-ambient
thermal resistance of the device and the following basic
equation:
MIC5309
P_D(max)
=
⎜⎜⎝⎛
T_J(max) −
θ _JA
T_A
⎟⎟⎠⎞
T_J(max) = 125°C, the maximum junction temperature of
the die θ_JA thermal resistance = 90°C/W.
May 2008
9
M9999-051508-D