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LM2940 Datasheet(PDF) 4 Page - Unisonic Technologies

Part # LM2940
Description  1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LM2940 Datasheet(HTML) 4 Page - Unisonic Technologies

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LM2940
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 11
www.unisonic.com.tw
QW-R102-016.E
ELECTRICAL CHARACTERISTICS(Cont.)
For LM2940-9.0V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
VOUT
10.5V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
8.73
9.00
9.27
V
Line regulation
VOUT
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
20
90
mV
Load Regulation
VOUT
50mA ≤ IOUT ≤ 1A
60
90
mV
Output Impedance
Ro
100 mA DC and 20mArms, fo=120Hz
60
mΩ
Quiescent Current
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
10
15
mA
Output Noise Voltage
eN
10Hz-100kHz, IOUT =5mA
270
µVrms
Ripple Rejection
RR
fo=120Hz, 1Vrms, IOUT =100mA
52
64
dB
Long Term Stability
34
mV/
1000Hr
IOUT =1A
0.5
0.8
Dropout Voltage
VD
IOUT =100mA
0.11
0.15
V
Short Circuit Current
ISC
(Note)
1.6
1.9
A
Maximum Line Transient
TIN
Ro=100Ω, T ≤ 100ms
60
75
V
Reverse Polarity DC Input Voltage
VRIN
Ro=100Ω
-15
-30
V
Reverse Polarity Transient Input
Voltage
VTRRI
Ro=100Ω, T ≤ 100ms
-50
-75
V
For LM2940-10V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
VOUT
11.5V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
9.70
10.00 10.30
V
Line regulation
VOUT
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
20
100
mV
Load Regulation
VOUT
50mA ≤ IOUT ≤ 1A
65
100
mV
Output Impedance
Ro
100 mA DC and 20mArms, fo=120Hz
65
mΩ
Quiescent Current
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
10
15
mA
Output Noise Voltage
eN
10Hz-100kHz, IOUT =5mA
300
µVrms
Ripple Rejection
RR
fo=120Hz, 1Vrms, IOUT =100mA
51
63
dB
Long Term Stability
36
mV/
1000Hr
IOUT =1A
0.5
0.8
Dropout Voltage
VD
IOUT =100mA
0.11
0.15
V
Short Circuit Current
ISC
(Note)
1.6
1.9
A
Maximum Line Transient
TIN
Ro=100Ω, T ≤ 100ms
60
75
V
Reverse Polarity DC Input Voltage
VRIN
Ro=100Ω
-15
-30
V
Reverse Polarity Transient Input
Voltage
VTRRI
Ro=100Ω, T ≤ 100ms
-50
-75
V


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