RT9178
Note 1.
Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2.
Devices are ESD sensitive. Handling precaution is recommended.
Note 3.
The device is not guaranteed to function outside its operating conditions.
Note 4.
The dropout voltage is defined as V
IN
-V
OUT
, which is measured when V
OUT
is V
OUT(NORMAL)
−
100mV.
Note 5.
Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested for load
regulation in the load range from 1mA to 200mA.
Note 6.
Quiescent, or ground current, is the difference between input and output currents. It is defined by I
Q
= I
IN
- I
OUT
under
no load condition (I
OUT
= 0mA). The total current drawn from the supply is the sum of the load current plus the ground
pin current.
Note 7.
Standby current is the input current drawn by a regulator when the output voltage is disabled by a shutdown signal
(V
EN
= GND). It is measured with V
IN
= 6V.
Note 8.
θ
JA
is measured in the natural convection at T
A
= 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
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DS9178-16 April 2008
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
