LM2940 데이터 시트보기 (PDF) - Unisonic Technologies
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LM2940 Datasheet PDF : 12 Pages
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LM2940
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For LM2940-10V
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
Line regulation
Load Regulation
Output Impedance
VOUT
△VOUT
△VOUT
ROUT
11.5V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
50mA ≤ IOUT ≤ 1A
100mA DC and 20mARMS, fO=120Hz
Quiescent Current
Output Noise Voltage
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
eN 10Hz-100kHz, IOUT =5mA
Ripple Rejection
Long Term Stability
RR fO=120Hz, 1VRMS, IOUT =100mA
Dropout Voltage
VD
IOUT =1A
IOUT =100mA
Short Circuit Current
Maximum Line Transient
ISC (Note)
TIN ROUT=100Ω, T ≤ 100ms
Reverse Polarity DC Input Voltage
Reverse Polarity Transient Input
Voltage
VRIN
VTRRI
ROUT=100Ω
ROUT=100Ω, T ≤ 100ms
UTC LM2940-12V
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
Line regulation
Load Regulation
Output Impedance
VOUT
△VOUT
△VOUT
ROUT
13.6V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
50mA ≤ IOUT ≤ 1A
100mA DC and 20mARMS, fO=120Hz
Quiescent Current
Output Noise Voltage
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
eN 10Hz-100kHz, IOUT =5mA
Ripple Rejection
Long Term Stability
RR fO=120Hz, 1VRMs, IOUT =100mA
Dropout Voltage
VD
IOUT =1A
IOUT =100mA
Short Circuit Current
Maximum Line Transient
ISC (Note)
TIN ROUT=100Ω, T ≤ 100ms
Reverse Polarity DC Input Voltage
Reverse Polarity Transient Input
Voltage
VRIN
VTRRI
ROUT=100Ω
ROUT=100Ω, T ≤ 100ms
MIN
9.70
51
60
-15
TYP
10.00
20
65
65
10
300
63
36
0.5
0.13
2.5
75
-30
MAX UNIT
10.30 V
100 mV
100 mV
mΩ
15
mA
μVRMS
dB
mV/1000Hr
0.8
V
0.15
A
V
V
-50 -75
V
MIN
11.64
54
60
-15
TYP
12.00
20
55
80
10
360
66
48
0.5
0.11
2.5
75
-30
MAX UNIT
12.36 V
120 mV
120 mV
mΩ
15
mA
μVRMS
dB
mV/1000Hr
0.8
V
0.15
A
V
V
-50 -75
V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 12
QW-R102-016.L
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