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LP2985AIM5-2.9/NOPB Datasheet(PDF) 4 Page - Texas Instruments

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Part # LP2985AIM5-2.9/NOPB
Description  LP2985-N Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP2985AIM5-2.9/NOPB Datasheet(HTML) 4 Page - Texas Instruments

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LP2985-N
SNVS018V – MARCH 2000 – REVISED JUNE 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
(1) (continued)
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.
LP2985AI-X.X(2)
LP2985I-X.X(2)
Symbol
Parameter
Conditions
Typ
Units
Min
Max
Min
Max
VIN–VO
Dropout Voltage(3)
IL = 0
1
3
3
5
5
IL = 1 mA
7
10
10
15
15
IL = 10 mA
40
60
60
mV
90
90
IL = 50 mA
120
150
150
225
225
IL = 150 mA
280
350
350
575
575
IGND
Ground Pin Current
IL = 0
65
95
95
125
125
IL = 1 mA
75
110
110
170
170
IL = 10 mA
120
220
220
400
400
µA
IL = 50 mA
350
600
600
1000
1000
IL = 150 mA
850
1500
1500
2500
2500
VON/OFF < 0.3V
0.01
0.8
0.8
VON/OFF < 0.15V
0.05
2
2
VON/OFF
ON/OFF Input
High = O/P ON
1.4
1.6
1.6
V
Voltage(4)
Low = O/P OFF
0.55
0.15
0.15
ION/OFF
ON/OFF Input Current
VON/OFF = 0
0.01
−2
−2
µA
VON/OFF = 5V
5
15
15
en
Output Noise
BW = 300 Hz to 50 kHz,
Voltage (RMS)
COUT = 10 µF
30
µV
CBYPASS = 10 nF
Ripple Rejection
f = 1 kHz, CBYPASS = 10 nF
45
dB
COUT = 10 µF
IO(SC)
Short Circuit Current
RL = 0 (Steady State)
(5)
400
mA
IO(PK)
Peak Output Current
VOUT ≥ Vo(NOM) −5%
350
mA
(3)
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.
(4)
The ON/OFF input must be properly driven to prevent possible misoperation. For details, refer to APPLICATION HINTS.
(5)
The LP2985-N has foldback current limiting which allows a high peak current when VOUT > 0.5V, and then reduces the maximum output
current as VOUT is forced to ground (see TYPICAL PERFORMANCE CHARACTERISTICS curves).
4
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Copyright © 2000–2013, Texas Instruments Incorporated
Product Folder Links: LP2985-N


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