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LP2985IBP-1.8 Datasheet(PDF) 4 Page - Texas Instruments

Part # LP2985IBP-1.8
Description  Micropower 150 mA Low-Noise Low-Dropout Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP2985IBP-1.8 Datasheet(HTML) 4 Page - Texas Instruments

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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
−65˚C to +150˚C
Operating Junction Temperature
Range
−40˚C to +125˚C
Lead Temp. (Soldering, 5 sec.)
260˚C
ESD Rating (Note 2)
2 kV
Power Dissipation (Note 3)
Internally Limited
Input Supply Voltage (Survival)
−0.3V to +16V
Input Supply Voltage (Operating)
2.2V to +16V
Shutdown Input Voltage (Survival)
−0.3V to +16V
Output Voltage (Survival, (Note 4))
−0.3V to +9V
I
OUT (Survival)
Short Circuit
Protected
Input-Output Voltage (Survival,
−0.3V to +16V
(Note 5))
Electrical Characteristics (Note 10)
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 =VO(NOM) + 1V, IL = 1 mA, CIN = 1 µF, COUT = 4.7 µF, VON/OFF = 2V.
Symbol
Parameter
Conditions
Typ
LP2985AI-X.X
LP2985I-X.X
Units
(Note 6)
(Note 6)
Min
Max
Min
Max
∆V
O
Output Voltage
Tolerance
I
L = 1 mA
−1.0
1.0
−1.5
1.5
%V
NOM
1mA
≤ I
L
≤ 50 mA
−1.5
1.5
−2.5
2.5
−2.5
2.5
−3.5
3.5
1mA
≤ I
L
≤ 150 mA
−2.5
2.5
−3.0
3.0
−3.5
3.5
−4.0
4.0
Output Voltage
V
O(NOM)+1V
≤ V
IN
≤ 16V
0.007
0.014
0.014
%/V
Line Regulation
0.032
0.032
I
GND
Ground Pin Current
I
L = 0
65
95
95
µA
125
125
I
L = 1 mA
75
110
110
170
170
I
L = 10 mA
120
220
220
400
400
I
L = 50 mA
300
500
500
900
900
I
L = 150 mA
825
1200
1200
2000
2000
V
ON/OFF < 0.3V
0.01
0.8
0.8
V
ON/OFF < 0.15V
0.05
2
2
V
IN(min)
Minimum Input Voltage
Required To maintain
Output Regulation
(Note 9)
2.05
2.20
2.20
V
V
IN -VOUT
Dropout Voltage
(Note 9)
IL = 50mA
120
150
250
150
250
mV
IL = 150mA
280
350
600
350
600
V
ON/OFF
ON/OFF Input Voltage
(Note 7)
High = O/P ON
1.4
1.6
1.6
V
Low = O/P OFF
0.55
0.15
0.15
I
ON/OFF
ON/OFF Input Current
V
ON/OFF = 0
0.01
−2
−2
µA
V
ON/OFF =5V
5
15
15
e
n
Output Noise
BW = 300 Hz to 50 kHz,
Voltage (RMS)
C
OUT =10µF
30
µV
C
BYPASS =10nF
V
OUT = 1.8V
www.national.com
4


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