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| 型号： | SPX3940T-5.0 |
| 英文描述： | 1A Low Drop Out Voltage Regulator |
| 中文描述： | 1A低压降稳压器 |
| 文件页数： | 2/7页 |
| 文件大小： | 169K |
| 代理商： | SPX3940T-5.0 |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| SPX3940T-L-1-8 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| SPX3940T-L-1-8/TR | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| SPX3940T-L-2-5 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| SPX3940T-L-2-5/TR | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| SPX3940T-L-3-3 | 功能描述:低压差稳压器 - LDO 1.0A LW DROPOUT VLT 1.5A PEAK OUTPT CURR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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