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LP2987 数据表(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LP2987
功能描述  Micropower, 200 mA Ultra Low-Dropout Voltage Regulator with Programmable Power-On Reset Delay; Low Noise Version Available (LP2988)
PDF  24 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LP2987 数据表(HTML) 9 Page - National Semiconductor (TI)

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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 Temperature
(Soldering, 5 seconds)
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)
2.1V to +16V
Shutdown Pin
−0.3V to +16V
Sense Pin
−0.3V to +6V
Output Voltage
(Survival) (Note 4)
−0.3V to +16V
I
OUT (Survival)
Short Circuit Protected
Input-Output Voltage
(Survival) (Note 5)
−0.3V to +16V
Electrical Characteristics
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, COUT = 4.7 µF, CIN = 2.2 µF, VS/D = 2V.
Symbol
Parameter
Conditions
Typical
LM2987/8AI-X.X
(Note 6)
LM2987/8I-X.X
(Note 6)
Units
Min
Max
Min
Max
∆V
O
Output Voltage
Tolerance
−0.5
0.5
−1.0
1.0
%V
NOM
0.1 mA < I
L < 200 mA
−0.8
0.8
−1.6
1.6
−1.8
1.8
−2.8
2.8
Output Voltage Line
Regulation
V
O(NOM) + 1V ≤ VIN ≤
16V
0.007
0.014
0.014
%/V
0.032
0.032
V
IN–VO
Dropout Voltage
(Note 7)
I
L = 100 µA
1
2.0
2.0
mV
3.5
3.5
I
L =75mA
90
120
120
170
170
I
L = 200 mA
180
230
230
350
350
I
GND
Ground Pin Current
I
L = 100 µA
100
120
120
µA
150
150
I
L =75mA
500
800
800
1400
1400
I
L = 200 mA
1
2.1
2.1
mA
3.7
3.7
V
S/D < 0.3V
0.05
1.5
1.5
µA
I
O(PK)
Peak Output Current
V
OUT ≥ VO(NOM) − 5%
400
250
250
mA
I
O(MAX)
Short Circuit Current
R
L = 0 (Steady State)
(Note 10)
400
e
n
LP2987 Output Noise
Voltage (RMS)
BW = 300 Hz to
50 kHz, V
OUT = 3.3V
C
OUT =10µF
100
µV(RMS)
LP2988 Output Noise
Voltage (RMS)
BW = 300 Hz to 50 kHz,
V
OUT = 3.3V
C
OUT =10µF
C
BYPASS = .01 µF
20
Ripple Rejection
f = 1 kHz, C
OUT =10µF
C
BYP = 0 (LP2988)
65
dB
www.national.com
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