參數(shù)資料
型號： LP2956AMJ-QML
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 基準電壓源/電流源
英文描述： Dual Micropower Low-Dropout Voltage Regulators
中文描述： DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, CDIP16
封裝： CERAMIC, DIP-16
文件頁數(shù)： 3/16頁
文件大小： 501K
代理商： LP2956AMJ-QML
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
Operating Junction
Temperature Range
Lead Temperature
(Soldering, 5 seconds)
Power Dissipation (Note 2)
65C to +150C
40C to +125C
260C
Internally Limited
Input Supply Voltage
Feedback Input Voltage (Note 3)
Aux. Feedback Input Voltage (Note 3)
Shutdown Input Voltage (Note 3)
Comparator Input Voltage (Notes 3,
4)
Comparator Output Voltage (Notes 3,
4)
ESD Rating (Note 16)
20V to +30V
0.3V to +5V
0.3V to +5V
0.3V to +30V
0.3V to +30V
0.3V to +30V
2 kV
Electrical Characteristics
Limits in standard typeface are for T
= 25C, and limits in
boldface type
apply over the full operating temperature range. Lim-
its are guaranteed by production testing or correlation techniques using standard Statistical Quality Control (SQC) methods.
Unless otherwise specified: V
= 6V, C
= 2.2 μF (Main Output) and 10 μF (Auxiliary Output), Feedback pin is tied to 5V Tap
pin, C
= 1 μF, V
= 0V, Main Output pin is tied to Output Sense pin, Auxiliary Output is programmed for 5V. The main
regulator output has a 1 mA load, the auxiliary regulator output has a 100 μA load.
Symbol
Parameter
Conditions
Typical
LP2956AI
Min
LP2956I
Min
Units
Max
Max
MAIN OUTPUT
V
O
Output Voltage
5.0
4.975
4.940
4.930
5.025
5.060
5.070
100
4.950
4.900
4.880
5.050
5.100
5.120
150
V
1 mA
≤
I
L
≤
250 mA
(Note 5)
5.0
20
Temperature Coefficient
ppm/C
Line Regulation
V
IN
= 6V to 30V
0.03
0.1
0.2
%
0.2
0.4
Load Regulation
I
L
= 1 mA to 250 mA
I
L
= 0.1 mA to 1 mA (Note 6)
I
L
= 1 mA
0.04
0.16
0.20
%
0.20
0.30
V
IN
–V
O
Dropout Voltage
(Note 7)
60
100
150
300
420
400
520
600
800
500
530
0.2
100
150
300
420
400
520
600
800
500
530
0.2
I
L
= 50 mA
240
mV
I
L
= 100 mA
310
I
L
= 250 mA
470
I
LIMIT
Current Limit
R
L
= 1
380
mA
Thermal Regulation
(Note 8)
0.05
%/W
e
n
Output Noise Voltage
(10 Hz to 100 KHz)
I
L
= 100 mA
Feedback Pin Voltage
Feedback Pin Bias
Current
Output Leakage
In Shutdown
C
L
= 2.2 μF
C
L
= 33 μF
C
L
= 33 μF (Note 9)
400
260
80
1.23
20
μV RMS
V
FB
I
FB
1.215
1.245
40
60
10
20
1.205
1.255
40
60
10
20
V
nA
I
O
(OFF)
AUXILIARY OUTPUT
V
FB
I
(SD IN)
≥
1 μA
V
IN
= 30V, V
OUT
= 0V
3
μA
Feedback Pin Voltage
1.23
1.22
1.21
1.25
1.26
1.21
1.20
1.26
1.27
V
www.national.com
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相關PDF資料
PDF描述
LP2956AIM Dual Micropower Low-Dropout Voltage Regulators
LP2956AIN Dual Micropower Low-Dropout Voltage Regulators
LP2956IM Dual Micropower Low-Dropout Voltage Regulators
LP2956IN Dual Micropower Low-Dropout Voltage Regulators
LP2956A
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