LP2985LV
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Operating Junction Temperature
Range
Lead Temp. (Soldering, 5 sec.)
ESD Rating (Note 2)
Power Dissipation (Note 3)
−65˚C to +150˚C
−40˚C to +125˚C
260˚C
2 kV
Internally Limited
Input Supply Voltage (Survival)
Input Supply Voltage (Operating)
Shutdown Input Voltage (Survival)
Output Voltage (Survival, (Note 4))
I
OUT
(Survival)
Input-Output Voltage (Survival,
−0.3V to +16V
2.2V to +16V
−0.3V to +16V
−0.3V to +9V
Short Circuit
Protected
−0.3V to +16V
Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C. and limits in
boldface type
apply over the full operating temperature range. Un-
less 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.
LP2985AI-X.X
Symbol
∆V
O
Parameter
Output Voltage
Tolerance
Conditions
I
L
= 1 mA
1 mA
≤
I
L
≤
50 mA
1 mA
≤
I
L
≤
150 mA
Output Voltage
Line Regulation
I
GND
Ground Pin Current
I
L
= 0
I
L
= 1 mA
I
L
= 10 mA
I
L
= 50 mA
I
L
= 150 mA
V
ON/OFF
<
0.3V
V
ON/OFF
<
0.15V
V
IN
(min)
Minimum Input Voltage
Required To maintain
Output Regulation
IL = 50mA
V
IN
- V
OUT
Dropout Voltage
ON/OFF Input Voltage
ON/OFF Input Current
Output Noise
Voltage (RMS)
IL = 150mA
High = O/P ON
Low = O/P OFF
V
ON/OFF
= 0
V
ON/OFF
= 5V
e
n
BW = 300 Hz to 50 kHz,
C
OUT
= 10 µF
C
BYPASS
= 10 nF
V
OUT
= 1.8V
30
µV
65
75
120
300
825
0.01
0.05
2.05
V
O
(NOM)+1V
≤
V
IN
≤
16V
0.007
Typ
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
95
125
110
170
220
400
500
900
1200
2000
0.8
2
2.20
LP2985I-X.X
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
95
125
110
170
220
400
500
900
1200
2000
0.8
2
2.20
V
µA
%/V
%V
NOM
Units
120
280
1.4
0.55
0.01
5
1.6
150
250
350
600
1.6
0.15
−2
15
150
250
350
600
0.15
−2
15
mV
V
ON/OFF
I
ON/OFF
V
µA
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