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LM2940CT-12.0 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
封装:
TO-220-3
描述:
LDO)/LM2940CT-12.0 管装
Pictures:
3D模型
符号图
焊盘图
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典型应用电路图在P1
原理图在P13
封装尺寸在P19P20P21P22P24P25P26P27
标记信息在P19P20P21P22P23
封装信息在P19P20P21P22P23P24P25P26P27
技术参数、封装参数在P3P14
应用领域在P34
电气规格在P3P4P5P6P7P8P9P10P11P12
导航目录
LM2940CT-12.0数据手册
Page:
of 34 Go
若手册格式错乱，请下载阅览PDF原文件
LM2940-N, LM2940C
www.ti.com
SNVS769I –MARCH 2000–REVISED APRIL 2013
Electrical Characteristics (continued)
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range of the indicated device. All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
) 5V 8V
Parameter Conditions Typ LM2940-N LM2940- Typ LM2940-N LM2940-
Units
Limit
(1)
N/883 Limit
(1)
N/883
Limit
(2)
Limit
(2)
Reverse Polarity R
O
= 100Ω
Transient Input
LM2940-N, T ≤ 100 ms −75 −50/−50 −75 −50/−50 V
MIN
Voltage
LM2940-N/883, T ≤ 20 ms −45/−45 −45/−45
LM2940C, T ≤ 1 ms −55 −45/−45
Electrical Characteristics
V
IN
= V
O
+ 5V, I
O
= 1A, C
O
= 22 μF, unless otherwise specified. Boldface limits apply over the entire operating
temperature range of the indicated device. All other specifications apply for T
A
= T
J
= 25°C.
Output Voltage (V
O
) 9V 10V
LM2940-N LM2940-N
Units
Parameter Conditions Typ Limit Typ Limit
(1) (1)
Output Voltage 10.5V ≤ V
IN
≤ 26V 11.5V ≤ V
IN
≤ 26V
5 mA ≤ I
O
≤1A 9.00 8.73/8.55 10.00 9.70/9.50 V
MIN
9.27/9.45 10.30/10.50 V
MAX
Line Regulation V
O
+ 2V ≤ V
IN
≤ 26V, 20 90 20 100 mV
MAX
I
O
= 5 mA
Load Regulation 50 mA ≤ I
O
≤ 1A
LM2940-N 60 90/150 65 100/165 mV
MAX
LM2940C 60 90
Output Impedance 100 mADC and
20 mArms, 60 65 mΩ
f
O
= 120 Hz
Quiescent Current V
O
+2V ≤ V
IN
< 26V,
I
O
= 5 mA
LM2940-N 10 15/20 10 15/20 mA
MAX
LM2940C 10 15
V
IN
= V
O
+ 5V, I
O
= 1A 30 45/60 30 45/60 mA
MAX
Output Noise Voltage 10 Hz − 100 kHz, 270 300 μV
rms
I
O
= 5 mA
Ripple Rejection f
O
= 120 Hz, 1 V
rms
,
I
O
= 100 mA
LM2940-N 64 52/46 63 51/45 dB
MIN
LM2940C 64 52
Long Term 34 36 mV/
Stability
1000 Hr
Dropout Voltage I
O
= 1A 0.5 0.8/1.0 0.5 0.8/1.0 V
MAX
I
O
= 100 mA 110 150/200 110 150/200 mV
MAX
Short Circuit Current See
(2)
1.9 1.6 1.9 1.6 A
MIN
(1) All limits are specified at T
A
= T
J
= 25°C only (standard typeface) or over the entire operating temperature range of the indicated device
(boldface type). All limits at T
A
= T
J
= 25°C are 100% production tested. All limits at temperature extremes are specified via correlation
using standard Statistical Quality Control methods.
(2) Output current will decrease with increasing temperature but will not drop below 1A at the maximum specified temperature.
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