SNVS018V – MARCH 2000 – REVISED JUNE 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
(1) (2)
Storage Temperature Range
Operating Junction Temperature Range
Lead Temp. (Soldering, 5 sec.)
ESD Rating
(3)
Power Dissipation
(4)
−65°C
to +150°C
−40°C
to +125°C
260°C
2 kV
Internally Limited
−0.3V
to +16V
2.5V to +16V
−0.3V
to +16V
−0.3V
to +9V
Short Circuit Protected
−0.3V
to +16V
Input Supply Voltage (Survival)
Input Supply Voltage (Operating)
Shutdown Input Voltage (Survival)
Output Voltage (Survival, See
(5)
)
I
OUT
(Survival)
Input-Output Voltage (Survival, See
(6)
)
(1)
(2)
(3)
(4)
Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply
when operating the device outside of its rated operating conditions.
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
The ESD rating of pins 3 and 4 for the SOT-23 package, or pins 5 and 2 for the DSBGA package, is 1 kV.
The maximum allowable power dissipation is a function of the maximum junction temperature, T
J
(MAX), the junction-to-ambient thermal
resistance,
θ
J-A
, and the ambient temperature, T
A
. The maximum allowable power dissipation at any ambient temperature is calculated
using:
where
(a) the value of
θ
J-A
for the SOT-23 package is 220°C/W in a typical PC board mounting and the DSBGA package
is 225°C/W.
(5)
(6)
Exceeding the maximum allowable dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.
For 12V option, output voltage survival: -0.3 to +16V. If used in a dual-supply system where the regulator load is returned to a negative
supply, the LP2985-N output must be diode-clamped to ground.
The output PNP structure contains a diode between the V
IN
to V
OUT
terminals that is normally reverse-biased. Reversing the polarity
from V
IN
to V
OUT
will turn on this diode.
ELECTRICAL CHARACTERISTICS
(1)
Limits in standard typeface are for T
J
= 25°C. and limits in
boldface type
apply over the full operating temperature range.
Unless otherwise specified: V
IN
= V
O
(NOM) + 1V, I
L
= 1 mA, C
IN
= 1 µF, C
OUT
= 4.7 µF, V
ON/OFF
= 2V.
Symbol
ΔV
O
Parameter
Output Voltage
Tolerance
I
L
= 1 mA
1 mA
≤
I
L
≤
50 mA
1 mA
≤
I
L
≤
150 mA
Output Voltage
Line Regulation
V
O
(NOM)+1V
≤
V
IN
≤
16V
0.007
Conditions
Typ
LP2985AI-X.X
(2)
Min
−1.0
−1.5
−2.5
−2.5
−3.5
Max
1.0
1.5
2.5
2.5
3.5
0.014
0.032
LP2985I-X.X
(2)
Min
−1.5
−2.5
−3.5
−3.0
−4.0
Max
1.5
2.5
3.5
3.0
4.0
0.014
0.032
%/V
%V
NOM
Units
(1)
(2)
Exposing the DSBGA device to direct sunlight will cause misoperation. See
for additional information.
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods. The limits are used to calculate TI's Average Outgoing Quality Level (AOQL).
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