2.0A Low Output Voltage Ultra LDO Regulator
TJ2132
The graph above is valid for the thermal impedance specified in the Absolute Maximum Ratings section
on page 1.
The θJA could be decreased with respect to the copper plane area. So, the specification of maximum
power dissipation for an application is fixed, the proper plane area could be estimated by following
graphs. Wider copper plane area leads lower θJA.
The maximum allowable power dissipation is also influenced by the ambient temperature. With the θJA-
Copper plane area relationship, the maximum allowable power dissipation could be evaluated with
respect to the ambient temperature. As shown in graph, the higher copper plane area leads θJA. And the
higher ambient temperature leads lower maximum allowable power dissipation.
Aug. 2014 – Rev.1.1.3
13
HTC
HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
