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LM2931 Datasheet(PDF) 8 Page - STMicroelectronics

Part No. LM2931
Description  VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT FUNCTION
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LM2931 Datasheet(HTML) 8 Page - STMicroelectronics

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LM2931 SERIES
8/19
ELECTRICAL CHARACTERISTICS OF LM2931ADJ (refer to the test circuits figure 2 with R1 = 27KΩ
and R2 = 40.5KΩ,TJ = 25°C, CI =0.1 µF, CO = 100 µF, VI =14V, IO = 10mA, VINH = 0V, unless otherwise
specified).
Note 1: Reference Voltage is measured from VOUT to ADJ pin.
Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Maximum Operating Input
Voltage
IO =10 mA
TJ = -40 to 125°C
26
37
V
VREF
Reference Voltage (Note 1)
1.14
1.2
1.26
V
VREF
Reference Voltage (Note 1) IO = 100 mA
TJ = -40 to 125°C
1.08
1.2
1.32
V
∆V
O
Line Regulation
VI = 3.6 to 26 V
0.6
4.5
mV
∆V
O
Load Regulation
IO = 5 to 100 mA
9
30
mV
Vd
Dropout Voltage (Note 1, 2) IO =10 mA
90
200
mV
IO = 100 mA
250
600
Id
Quiescent Current
ON MODE
IO = 100 mA
2.5
30
mA
OFF MODE
VINH =2.5 V
RLOAD = 300 Ω
0.31mA
ISC
Short Circuit Current
100
300
mA
SVR
Supply Voltage Rejection
IO = 100 mA
VI =14± 2V
f=120Hz
TJ = -40 to 125°C
55
80
dB
VIL
Control Input Voltage Low
TJ = -40 to 125°C
2
1.2
V
VIH
Control Input Voltage High
TJ = -40 to 125°C
3.25
2
V
IINH
Inhibit Input Current
VINH =2.5 V
22
50
µA
VI
Transient Input Voltage
RLOAD = 300 Ωτ < 100ms
60
70
V
VI
Reverse Polarity Input
Voltage
VO =± 0.3V
RLOAD = 300 Ω
-15
-50
V
VI
Reverse Polarity Input
Voltage Transient
RLOAD = 300 Ωτ < 100ms
-50
V
eN
Output Noise Voltage
B =10 Hz to 100 KHz
330
µV
RMS


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