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LM2940L-50-TN3-T 数据手册 - UTC（友顺）
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LM2940L-50-TN3-T数据手册
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LM2940 LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD 3 of 12
www.unisonic.com.tw QW-R102-016.L
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
Input Voltage V
IN
26 V
Power Dissipation P
D
Internally limited
Junction Temperature T
J
+150 °C
Ambient Operating
Temperature
TO-220/TO-263-3/TO-263
T
OPR
-40 ~ +125
°C
SOT-223/ TO-252 -40 ~ +85
Storage Temperature T
STG
-65 ~ +150 °C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER SYMBOL RATING UNIT
Junction to Ambient
SOT-223
θ
JA
174
°C/W
TO-220 60
TO-263/TO-263-3 80
TO-252 125
Junction to Case
TO-220/ TO-263/TO-263-3
θ
JC
4
°C/W
TO-252 12
SOT-223 15
ELECTRICAL CHARACTERISTICS
(T
A
=T
J
=25°C, V
IN
=V
OUT
+5V, I
OUT
=1A and C
OUT
=22μF, unless otherwise specified.)
For LM2940-5.0V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage V
OUT
6.25V ≤ V
IN
≤ 26V, 5mA ≤ I
OUT
≤ 1A 4.85 5.00 5.15 V
Line Regulation △V
OUT
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 20 50 mV
Load Regulation △V
OUT
50mA ≤ I
OUT
≤ 1A 35 50 mV
Output Impedance R
OUT
100 mA DC and 20mA
RMS
, f
O
=120Hz 35 mΩ
Quiescent Current I
Q
V
OUT
+2V ≤ V
IN
≤ 26V, I
OUT
=5mA 10 15 mA
Output Noise Voltage e
N
10Hz-100kHz, I
OUT
=5mA 150 μV
RMS
Ripple Rejection RR f
O
=120Hz, 1V
RMS
, I
OUT
=100mA 54 72 dB
Long Term Stability 20
mV/1000Hr
Dropout Voltage V
D
I
OUT
=1A 0.5 0.8
V
I
OUT
=100mA 0.13 0.15
Short Circuit Current I
SC
(Note) 2.5 A
Maximum Line Transient T
IN
R
OUT
=100Ω, T ≤ 100ms 60 75 V
Reverse Polarity DC Input Voltage V
RIN
R
OUT
=100Ω -15 -30 V
Reverse Polarity Transient
Input Voltage
V
TRRI
R
OUT
=100Ω, T ≤ 100ms -50 -75 V
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