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LP2981-N Datasheet(PDF) 3 Page - Texas Instruments

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Part # LP2981-N
Description  LP2981-N Micropower 100 mA Ultra Low-Dropout Regulator in SOT-23 Package
PDF  24 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP2981-N Datasheet(HTML) 3 Page - Texas Instruments

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LP2981-N
www.ti.com
SNOS773K – MARCH 2000 – REVISED APRIL 2013
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for TJ = 25°C, and limits in boldface type applyover the full operating temperature range.
Unless otherwise specified: VIN = VO(NOM) + 1V, CIN = 1 μF, IL = 1 mA, COUT = 4.7 μF,VON/OFF = 2V.
Symbol
Parameter
Conditions
Typ
LP2981AI-XX(1)
LP2981I-XX(1)
Units
Min
Max
Min
Max
ΔVO
Output Voltage Tolerance
IL = 1mA
−0.75
0.75
−1.25
1.25
1 mA < IL < 100 mA
−1.0
1.0
−2.0
2.0
%VNOM
−2.5
2.5
−3.5
3.5
Output Voltage
VO(NOM) + 1V
0.007
0.014
0.014
%/V
Line Regulation
≤ VIN ≤ 16V
0.032
0.032
VIN–VO
Dropout Voltage(2)
IL = 0
1
3
3
mV
5
5
IL = 1 mA
7
10
10
15
15
IL = 25 mA
70
100
100
150
150
IL = 100 mA
200
250
250
375
375
IGND
Ground Pin Current
IL = 0
65
95
95
μA
125
125
IL = 1 mA
80
110
110
170
170
IL = 25 mA
200
300
300
550
550
IL = 100 mA
600
800
800
1500
1500
VON/OFF < 0.3V
0.01
0.8
0.8
VON/OFF < 0.15V
0.05
2
2
VON/OFF
ON/OFF Input Voltage(3)
High = O/P ON
1.4
1.6
1.6
V
Low = O/P OFF
0.50
0.15
0.15
ION/OFF
ON/OFF Input Current
VON/OFF = 0
0.01
−1
−1
μA
VON/OFF = 5V
5
15
15
IO(PK)
Peak Output Current
VOUT ≥ VO(NOM) − 5%
400
150
150
mA
en
Output Noise
BW = 300 Hz–50 kHz,
160
μV
Voltage (RMS)
COUT = 10 μF
Ripple Rejection
f = 1 kHz
63
dB
COUT = 10 μF
IO(MAX)
Short Circuit Current
RL = 0 (Steady State)
(4)
150
mA
(1)
Limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation using
Statistical Quality Control (SQC) methods. The limits are used to calculate TI's 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 misoperation. For details, refer to APPLICATION HINTS.
(4)
See TYPICAL PERFORMANCE CHARACTERISTICS curve(s).
Copyright © 2000–2013, Texas Instruments Incorporated
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