參數(shù)資料
型號： LP3981IMMX-2.8
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準電壓源/電流源
英文描述： Micropower, 300mA Ultra Low-Dropout CMOS Voltage
中文描述： 2.8 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO8
封裝： MSOP-8
文件頁數(shù)： 4/11頁
文件大?。?/td> 339K
代理商： LP3981IMMX-2.8
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Notes 1,
V
IN
, V
EN
V
OUT
, V
OUT-SENSE
0.3 to 6.5V
0.3 to V
IN
+ 0.3,
Max 6.5V
Junction Temperature
Storage Temperature
Lead Temp.
Pad Temp.
Power Dissipation (Note 3)
θ
JA
(MSOP-8)
θ
JA
(LLP-6)
150C
65C to +150C
210C/W
50C/W
Maximum Power Dissipation at 25C
MSOP-8
LLP-6
ESD Rating(Note 4)
Human Body Model
Machine Model
595mW
2.5W
2kV
200V
Operating Ratings
(Notes 1, 2)
V
IN
V
EN
Junction Temperature
Maximum Power Dissipation (Note 5)
MSOP-8
LLP-6
2.7 to 6V
0 to V
IN
40C to +125C
476mW
2.0W
Electrical Characteristics
Unless otherwise specified: V
EN
= 1.2V, V
IN
= V
OUT
+ 0.5V, C
IN
= 2.2 μF, C
BP
= 0.033 μF, I
= 1mA, C
OUT
= 2.2 μF. Typi-
cal values and imits appearing in standard typeface are for T
J
= 25C. Limits appearing in
boldface type
apply over the entire
junction temperature range for operation, 40C to +125C. (Notes 6, 7)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
2
3
0.1
Max
2
3
0.1
V
OUT
Output Voltage
Tolerance
% of
V
OUT(nom)
Line Regulation Error
V
IN
= V
OUT
+ 0.5V to 6.0V, T
A
<
+85C
V
IN
= V
OUT
+ 0.5V to 6.0V, T
J
≤
125C
I
OUT
= 1 mA to 300 mA
0.005
%/V
0.2
0.2
0.005
%/V
Load Regulation Error
(Note 8)
0.0003
%/mA
PSRR
Power Supply Rejection Ratio
(Note 10)
V
IN
= V
OUT(nom)
+ 1V,
f = 1 kHz,
I
OUT
= 50 mA (
Figure 2
)
V
IN
= V
OUT(nom)
+ 1V,
f = 10 kHz,
I
OUT
= 50 mA (
Figure 2
)
V
EN
= 1.2V, I
OUT
= 1 mA
V
EN
= 1.2V, I
OUT
= 1 to 300 mA,
V
OUT
= 2.5V(Note 12)
V
EN
= 0.4V
I
OUT
= 1 mA
I
OUT
= 200 mA
I
OUT
= 300 mA
Output Grounded
(Steady State)
BW = 10 Hz to 100 kHz,
C
BP
= 0.033μF
50
dB
55
I
Q
Quiescent Current
70
170
120
210
μA
0.003
0.5
88
132
600
1.5
5
133
200
Dropout Voltage (Note 9)
mV
I
SC
Short Circuit Current Limit
mA
e
n
Output Noise Voltage
35
μVrms
TSD
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Peak Output Current
Maximum Input Current at V
EN
Logic Low Input threshold
Logic High Input threshold
160
20
455
0.001
C
C
I
OUT(PK)
I
EN
V
IL
V
IH
V
OUT
≥
V
OUT
(nom) - 5%
V
EN
= 0 and V
IN
V
IN
= 2.7 to 6.0V
V
IN
= 2.7 to 6.0V
300
μA
V
V
0.4
1.4
L
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LP3981IMMX-3.03 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Micropower, 300mA Ultra Low-Dropout CMOS Voltage
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