Datasheet

LP5951
www.ti.com SNVS345F –JUNE 2006–REVISED MAY 2013
Operating Ratings
(1)(2)
Input Voltage Range (V
IN
) 1.8V to 5.5V
V
EN
Input Voltage 0 to (V
IN
+ 0.3V)
Junction Temperature (T
J
) Range -40°C to + 125°C
Ambient Temperature (T
A
) Range See
(3)
(1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under
which operation of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits
and associated test conditions, see the Electrical Characteristics tables.
(2) All voltages are with respect to the potential at the GND pin.
(3) In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may
have to be derated. Maximum ambient temperature (T
A-MAX
) is dependent on the maximum operating junction temperature (T
J-MAX-OP
=
125°C), the maximum power dissipation of the device in the application (P
D-MAX
), and the junction-to ambient thermal resistance of the
part/package in the application (θ
JA
), as given by the following equation: T
A-MAX
= T
J-MAX-OP
– (θ
JA
× P
D-MAX
).
Thermal Properties
Junction-to-Ambient Thermal Resistance (θ
JA
)
(1)
SOT-23-5 Package 220°C/W
SC70-5 Package 415°C/W
(1) Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power
dissipation exists, special attention must be paid to thermal dissipation issues in board design.
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