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LM2931BD50R Fiches technique(PDF) 10 Page - STMicroelectronics

No de pièce LM2931BD50R
Description  Very low drop voltage regulators with inhibit function
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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Electrical characteristics
LM2931XX - LM2931AXX33 - LM2931AXX50 - LM2931BXX50
10/23
Table 7.
Electrical characteristics of LM2931xx (refer to the application circuit Figure 4 with
R1 = 27 KΩ and R2 = 40.5 kΩ, TJ = 25 °C, CI = 0.1 µF, CO = 100 µF, VI = 14 V, IO = 10 mA,
VINH = 0 V, unless otherwise specified).
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 (1)
1.14
1.2
1.26
V
VREF
Reference voltage (1)
IO = 100 mA, TJ = -40 to 125°C
1.08
1.2
1.32
V
ΔVO
Line regulation
VI = 3.6 to 26 V
0.6
4.5
mV
ΔVO
Load regulation
IO = 5 to 100 mA
9
30
mV
Vd
Dropout voltage (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
0.3
1
mA
ISC
Short circuit current
100
300
mA
SVR
Supply voltage rejection
IO = 100 mA, VI = 14 ± 2 V
f = 120 Hz, 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 Ω, τ < 100ms
60
70
V
VI
Reverse polarity input
voltage
VO = ± 0.3 V, RLOAD = 300 Ω
-15
-50
V
VI
Reverse polarity input
voltage transient
RLOAD = 300 Ω, τ < 100ms
-50
V
eN
Output noise voltage
B = 10 Hz to 100 kHz
330
µVRMS
1.
Reference voltage is measured from VOUT to ADJ pin.
2.
Vd measured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.


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