Datasheet
LP2982
www.ti.com
SNVS128J –MARCH 2000–REVISED APRIL 2013
Electrical Characteristics
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.
LP2982AI-X.X
(1)
LP2982I-X.X
(1)
Symbol Parameter Conditions Typ Units
Min Max Min Max
ΔV
O
I
L
= 1 mA −1.0 +1.0 −1.5 +1.5
Output Voltage Tolerance 1 mA < I
L
< 50 mA −1.5 +1.5 −2.0 +2.0 %V
NOM
−2.0 +2.0 −3.5 +3.5
V
O(NOM)
+ 1V ≤ V
IN
≤ 16V 0.007 0.014 0.014
Output Voltage Line
%/V
Regulation
0.032 0.032
V
IN
–V
O
I
L
= 0 1 3 3
5 5
I
L
= 1 mA 7 10 10
15 15
Dropout Voltage
(2)
mV
I
L
= 10 mA 40 60 60
90 90
I
L
= 50 mA 120 150 150
225 225
I
GND
I
L
= 0 65 95 95
125 125
I
L
= 1 mA 80 110 110
170 170
I
L
= 10 mA 140 220 220
Ground Pin Current μA
460 460
I
L
= 50 mA 375 600 600
1200 1200
V
ON/OFF
< 0.3V 0.01 0.8 0.8
V
ON/OFF
< 0.15V 0.10 2.0 2.0
V
ON/OFF
High = O/P ON 1.4 1.6 1.6
ON/OFF Input Voltage
(3)
V
Low = O/P OFF 0.55 0.15 0.15
I
ON/OFF
V
ON/OFF
= 0 0.01 −2 −2
ON/OFF Input Current μA
V
ON/OFF
= 5V 5 15 15
I
O(PK)
Peak Output Current V
OUT
≥ V
O(NOM)
− 5% 150 100 100 mA
V
IN
–V
O
I
L
= 80 mA 180 225 225
Dropout Voltage mV
325 325
I
GND
I
L
= 80 mA 525 750 750
Ground Pin Current μA
1400 1400
e
n
BW = 300 Hz–50 kHz, μV
Output Noise Voltage
C
OUT
= 10 μF 30
(RMS)
C
BYPASS
= 0.01 μF
f = 1 kHz
Ripple Rejection 45 dB
C
OUT
= 10 μF
I
O(MAX)
Short Circuit Current R
L
= 0 (Steady State)
(4)
150 mA
(1) Temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate
Average Outgoing Quality Level (AOQL).
(2) Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a
1V differential.
(3) The ON/OFF inputs must be properly driven to prevent possible misoperation. For details, refer to Application Hints.
(4) See Typical Performance Characteristics curve(s).
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