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LP3997 bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LP3997
Giải thích chi tiết về linh kiện  Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset
PDF  11 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LP3997 bảng dữ liệu(HTML) 4 Page - National Semiconductor (TI)

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Absolute Maximum Ratings
(Notes 2, 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
-0.3 to 6.5V
Output Voltage
-0.3 to (V
IN + 0.3V) to
6.5V (max)
SD Input Voltage
-0.3 to (V
IN + 0.3V) to
6.5V (max)
Junction Temperature
150˚C
Lead/Pad Temp.
MSOP
260˚C
Storage Temperature
-65 to 150˚C
Continuous Power Dissipation
Internally Limited (Note 3)
ESD (Note 4)
Human Body Model
2KV
Machine Model
200V
Operating Ratings
(Note 1)
Input Voltage
2V to 6V
Shutdown Input Voltage
0 to (V
IN + 0.3V) to
6.5V (max)
Junction Temperature
-40˚C to 125˚C
Ambient Temperature T
A Range
(Note 5)
-40˚C to 85˚C
Thermal Properties
(Note 1)
Junction To Ambient Thermal
Resistance (Note 6)
θ
JA (MSOP)
210˚C/W
Electrical Characteristics
Unless otherwise noted, V
SD =950mV, VIN =VOUT + 1.0V, CIN = 2.2 µF, IOUT = 1 mA, COUT =2.2 µF and CNOISE = 0.1 µF.
Typical values and limits appearing in normal type apply for T
J = 27˚C. Limits appearing in boldface type apply over the full
temperature range for operation, −40 to +125˚C. (Note 11)
Symbol
Parameter
Conditions
Typ
Limit
Units
Min
Max
V
IN
Input Voltage
26
V
∆V
OUT
Output Voltage Tolerance
Over full line and load regulation.
-3
+3
%
Line Regulation Error
V
IN =(VOUT(NOM) + 1.0V) to 6.0V,
I
OUT = 1mA
0.05
%/V
Load Regulation Error
I
OUT = 1mA to 250mA
20
µV/mA
I
LOAD
Load Current
(Notes 7, 8)
0
µA
I
Q
Quiescent Current
V
SD = 950mV, IOUT = 0mA
45
µA
V
SD = 950mV, IOUT = 250mA
65
V
SD = 0.4V
0.002
I
SC
Short Circuit Current Limit
(Note 9)
650
1000
mA
I
OUT
Maximum Output Current
250
mA
PSRR
Power Supply Rejection Ratio
f = 1kHz, I
OUT = 1mA to 150mA
64
dB
f = 10kHz, I
OUT = 150mA
39
e
N
Output noise Voltage (Note 8)
BW = 10Hz to
100kHz,
V
IN = VOUTnom
+1V
w/o C
NOISE
180
µV
RMS
C
NOISE = 0.1µF
100
T
SHUTDOWN
Thermal Shutdown
Temperature
160
˚C
Hysteresis
20
Enable Control Characteristics
I
SD
Maximum Input Current at
V
SD Input
V
SD = 0.0V
0.001
0.1
µA
V
SD = 6V (Note 10)
1
2
V
IL
Low Input Threshold
V
IN =2Vto6V
0.4
V
V
IH
High Input Threshold
V
IN =2Vto6V
0.95
V
Error Flag Characteristics
V
TH
Power Good Trip Threshold
V
IN Rising
95
95
97
%V
OUT
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