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参数资料
| 型号： | LM333T |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 3-Ampere Adjustable Negative Regulators |
| 中文描述： | 1.2 V-32 V ADJUSTABLE NEGATIVE REGULATOR, PSFM3 |
| 封装： | PLASTIC, TO-220, 3 PIN |
| 文件页数： | 3/10页 |
| 文件大小： | 268K |
| 代理商： | LM333T |
Electrical Characteristics LM333
(Continued)
Specifications with standard typeface are for T
J
= 25C, and those with
boldface type
apply over the full operating temperature
range. (Note 3)
Parameter
Conditions
Typical
Min
Max
(Note 2)
0.04
0.07
1.0
1.5
0.02
Units
(Note 2)
Line Regulation
3V
≤
|V
IN
V
OUT
|
≤
35V
I
OUT
= 50 mA (Note 4)
10 mA
≤
I
L
≤
3A, P
≤
P
MAX
(Notes 4, 5)
10 ms Pulse
T
MIN
≤
T
J
≤
T
MAX
T
J
= 125C, 1000 Hours
0.01
0.02
0.2
0.4
0.002
0.5
0.2
65
70
2.5
% /V
Load Regulation
%
Thermal Regulation
Temperature Stability
Long Term Stability
Adjust Pin Current
% /W
%
%
μA
95
100
8
Adjust Pin Current
Change
Minimum Load
Current
Current Limit
(Note 5)
10 mA
≤
I
L
≤
3A
3.0V
≤
|V
IN
V
OUT
|
≤
35V
|V
IN
V
OUT
|
≤
35V
|V
IN
V
OUT
|
≤
10V
3V
≤
|V
IN
V
OUT
|
≤
10V
|V
IN
V
OUT
| = 20V
|V
IN
V
OUT
| = 30V
10 Hz to 10 kHz
μA
2.5
1.5
3.9
2.4
0.4
0.003
10
5.0
mA
3.0
1.0
0.20
A
Output Noise
(% of V
OUT
)
Ripple Rejection
% (rms)
V
OUT
= 10V, f = 120 Hz
C
ADJ
=
C
ADJ
= 10 μF
0 μF
60
77
1.2
3
163
dB
Thermal Resistance
Junction to Case
Thermal Shutdown
Temperature
Thermal Resistance
Junction to Ambient
(No Heatsink)
TO-3 Package (K STEEL)
TO-220 Package (T)
1.8
4
C/W
C
K Package
T Package
35
50
C/W
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
outside of its stated operating conditions.
Note 2:
All limits are guaranteed at either room temperature (standard type face) or at
temperature extremes (bold typeface)
by production testing or correlation
techniques using standard Statistical Quality Control (SQC) methods.
Note 3:
Unless otherwise specified: |V
IN
V
OUT
| = 5V, I
OUT
= 0.5A, P
DISS
≤
30W.
Note 4:
Load and line regulation are measured at constant junction temperature, using low duty cycle pulse testing (output voltage changes due to heating effects
are covered by the Thermal Regulation specification). For the TO-3 package, load regulation is measured on the output pin,
1
8
" below the base of the package.
Note 5:
The output current of the LM333 is guaranteed to be
≥
3A in the range 3V
≤
|V
V
|
≤
10V. For the range 10V
≤
|V
IN
V
OUT
|
≤
15V, the guaranteed
minimum output current is equal to: 30/ (V
IN
V
OUT
). Refer to graphs for guaranteed output currents at other voltages.
www.national.com
3
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