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| LP2982_15 Datasheet, PDF (3/21 Pages) Texas Instruments – LP2982 Micropower 50 mA Ultra Low-Dropout Regulator in SOT-23 Package | |||
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LP2982
www.ti.com
SNVS128J â MARCH 2000 â REVISED APRIL 2013
Electrical Characteristics
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, CIN = 1 μF, COUT = 4.7 μF, VON/OFF = 2V.
Symbol
Parameter
Conditions
LP2982AI-X.X (1)
Typ
Min
Max
LP2982I-X.X (1)
Min
Max
Units
ÎVO
IL = 1 mA
Output Voltage Tolerance 1 mA < IL < 50 mA
â1.0
â1.5
â2.0
+1.0
+1.5
+2.0
â1.5
â2.0
â3.5
+1.5
+2.0
+3.5
%VNOM
Output Voltage Line
Regulation
VO(NOM) + 1V ⤠VIN ⤠16V
0.007
0.014
0.032
0.014
%/V
0.032
VINâVO
IL = 0
1
3
3
5
5
Dropout Voltage(2)
IL = 1 mA
IL = 10 mA
7
10
10
15
15
mV
40
60
60
90
90
IL = 50 mA
120
150
150
225
225
IGND
IL = 0
65
95
95
125
125
IL = 1 mA
80
110
110
170
170
Ground Pin Current
IL = 10 mA
140
220
220
μA
460
460
IL = 50 mA
375
600
600
1200
1200
VON/OFF
ON/OFF Input Voltage(3)
VON/OFF < 0.3V
VON/OFF < 0.15V
High = O/P ON
Low = O/P OFF
0.01
0.8
0.8
0.10
2.0
2.0
1.4
1.6
1.6
V
0.55
0.15
0.15
ION/OFF
IO(PK)
VINâVO
ON/OFF Input Current
Peak Output Current
Dropout Voltage
VON/OFF = 0
VON/OFF = 5V
VOUT ⥠VO(NOM) â 5%
IL = 80 mA
0.01
â2
5
15
â2
μA
15
150
100
100
mA
180
225
225
mV
325
325
IGND
Ground Pin Current
IL = 80 mA
525
750
750
μA
1400
1400
en
Output Noise Voltage
(RMS)
BW = 300 Hzâ50 kHz,
COUT = 10 μF
CBYPASS = 0.01 μF
30
μV
Ripple Rejection
f = 1 kHz
COUT = 10 μF
45
dB
IO(MAX)
Short Circuit Current
RL = 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).
Copyright © 2000â2013, Texas Instruments Incorporated
Product Folder Links: LP2982
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