參數(shù)資料
型號： SPX3941U-3.3
英文描述： 1A Low Drop Out Voltage Regulator
中文描述： 1A低壓降穩(wěn)壓器
文件頁數(shù)： 2/7頁
文件大?。?/td> 169K
代理商： SPX3941U-3.3
Rev. 12/19/00
SPX3940/41/42
ABSOLUTE MAXIMUM RATINGS
Power Dissipation..........................................Internally Limited
Lead Temp. (Soldering, 5 Seconds)................................260°C
Storage Temperature Range..............................-65° to +150°C
Operating Junction Temperature Range (Note 9)
SPX3940/41/42...................................... -40C° to +125°C
ELECTRICAL CHARACTERISTICS
at V
S
=±15V,T
A
=25°C, unless otherwise specified.
Boldface
applies over the full
operating temperature range.
PARAMETER
CONDITIONS
(Note 2)
3.3V Version
Output Voltage
-
40
°
C
≤
T
J
≤
+125
°
C
1mA
≤
I
L
≤
1A
All Voltage Options
Output Voltage
Temperature Coefficient
(Note 1)
Line Regulation ( Note 3)
6V
≤
V
IN
≤
30V (Note 4)
20
Load Regulation ( Note 3 )
I
L
= 50mA to 1mA
35
Input Supply Voltage ...................................................+7.5V
Feedback Input Voltage..................................-1.5V to +30V
Shutdown Input Voltage..................................-0.3V to +30V
Error Comparator Output................................-0.3V to +30V
ESD Rating ............................................................2KV Min
Typ.
SPX3940A
Min Max
SPX3940/41
Min Max
UNITS
3.3
3.3
3.267
3.217
3.333
3.382
3.234
3.185
3.366
3.415
V
20
100
150
ppm/°C
40
50
80
60
50
80
mV
mV
Output Noise Voltage
BV = 10Hz – 100kHz
I
L
= 5mA
4.5V<Vin<5.5V
I
L
= 5mA
Vin=5V
I
L
= 1A
V
OUT
= 0
150
10
110
1.7
μ
V(rms)
Ground Current
15
20
200
250
15
20
200
250
mA
Current Limit
Thermal Regulation
Dropout Voltage (Note 5)
1.2
1.2
A
I
L
= 1A
I
L
= 100mA
0.05
0.5
110
0.2
0.8
1.0
150
200
0.2
0.8
1.0
150
200
%/w
V
Adjustable Versions only
Reference Voltage
Typ
1.235
SPX3940/42
1.200
1.98
1.185
1.270
1.272
1.285
V
Reference Voltage
Over Temperature
(Note 6)
V
Feedback Pin Bias Current
20
60
80
nA
Reference Voltage
Temperature Coefficient
Feedback Pin Bias Current
Temperature Coefficient
(Note 7)
50
ppm/°C
0.1
nA/°C
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