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LM2937-XX-TQ5-T Scheda tecnica(PDF) 3 Page - Unisonic Technologies

Il numero della parte LM2937-XX-TQ5-T
Spiegazioni elettronici  500mA LOW DROPOUT VOLTAGE REGULATOR
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Produttore elettronici  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

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LM2937
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 10
www.unisonic.com.tw
QW-R102-012.F
ABSOLUTE MAXIMUM RATINGS (Note 1)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
26
V
Power Dissipation(Note 2)
PD
Internally limited
Maximum Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-40 ~ +150
°C
Note 1. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical
Specifications do not apply when operating the device outside of its rated Operating Conditions.
2. The maximum allowable power dissipation at any ambient temperature is PMAX = (125-TA)/ θJA, where 125 is
the maximum junction temperature for operation, TA is the ambient temperature, and θJA is the junction to
ambient thermal resistance. If this dissipation is exceeded, the die temperature will rise above 125
°C and
the electrical specifications do not apply. If the die temperature rises above 150
°C, the LM2937 will go into
thermal shutdown.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
TO-220
65
TO-263
73
Thermal Resistance Junction- Ambient
TO-263-5
θJA
73
TO-220
3
TO-263
4
Thermal Resistance Junction- Case
TO-263-5
θJC
4
°C/W
ELECTRICAL CHARACTERISTICS
(VIN=VNOM+5V, IOUT=500mA, COUT=10µF, TJ=Ta=25°C, unless otherwise specified.)
For LM2937-3.3V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
VOUT
5mA≤IOUT≤500mA
3.21
3.30
3.39
V
Line Regulation
V
OUT
VOUT+2V≤VIN≤26V, IOUT=5mA
9
30
mV
Load Regulation
V
OUT
5mA≤IOUT≤500mA
3
30
mV
(VO+2V)≤VIN ≤26V, IOUT=5mA
2
10
mA
Quiescent Current
IQ
VIN= VOUT+5V, IOUT=500mA
10
20
mA
Output Noise Voltage
eN
10Hz-100kHz, IOUT=5mA
100
µVrms
Long Term Stability
1000Hrs
12
mV
IOUT=500mA
0.5
1.0
V
Dropout Voltage
VD
IOUT=50mA
110
250
mV
Short Circuit Current
ISC
0.6
1.0
A
Peak Line Transient Voltage
TIN
tF≤100ms, RL=100Ω
60
75
V
Reverse DC Input Voltage
VRIN
VOUT ≥-0.6V, RL=100Ω
-15
-30
V
Reverse Transient Input Voltage
VTRRI
tF<1ms, RL=100Ω
-50
-75
V
For LM2937-5.0V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
VOUT
5mA≤IOUT≤500mA
4.85
5.00
5.15
V
Line Regulation
V
OUT
VOUT+2V≤VIN≤26V, IOUT=5mA
15
50
mV
Load Regulation
V
OUT
5mA≤IOUT≤500mA
5
50
mV
(VOUT+2V)≤VIN ≤26V, IOUT=5mA
2
10
mA
Quiescent Current
IQ
VIN= VOUT+5V, IOUT=500mA
10
20
mA
Output Noise Voltage
eN
10Hz-100kHz, IOUT=5mA
150
µVrms
Long Term Stability
1000Hrs
20
mV
IOUT=500mA
0.5
1.0
V
Dropout Voltage
VD
IOUT=50mA
110
250
mV


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