LM2931XX_10 Datasheet, PDF (9/21 Pages) STMicroelectronics – Very low drop voltage regulators with inhibit function

LM2931XX, LM2931AXX33, LM2931AXX50
Electrical characteristics
Refer to the application circuit Figure 4 with R₁ = 27 KΩ and R₂ = 40.5 kΩ, T_J = 25 °C,
C_I = 0.1 µF, C_O = 100 µF, V_I = 14 V, I_O = 10 mA, V_INH = 0 V, unless otherwise specified.
Table 6. Electrical characteristics of LM2931xx
Symbol
Parameter
Test conditions
Min. Typ.
V_I
V_REF
V_REF
ΔV_O
ΔV_O
V_d
I_d
I_SC
SVR
V_IL
V_IH
I_INH
V_I
V_I
V_I
eN
Maximum operating input
voltage
Reference voltage ⁽¹⁾
Reference voltage ⁽¹⁾
Line regulation
Load regulation
Dropout voltage ^{(1) (2)}
Quiescent current
ON MODE
OFF MODE
Short circuit current
Supply voltage rejection
Control input voltage low
Control input voltage high
Inhibit input current
Transient input voltage
Reverse polarity input
voltage
Reverse polarity input
voltage transient
Output noise voltage
I_O = 10 mA, T_J = -40 to 125°C
I_O = 100 mA, T_J = -40 to 125°C
V_I = 3.6 to 26 V
I_O = 5 to 100 mA
I_O = 10 mA
I_O = 100 mA
I_O = 100 mA
V_INH = 2.5 V, R_LOAD = 300 Ω
I_O = 100 mA, V_I = 14 ± 2 V
f = 120 Hz, T_J = -40 to 125°C
T_J = -40 to 125°C
T_J = -40 to 125°C
V_INH = 2.5 V
R_LOAD = 300 Ω, τ < 100ms
V_O = ± 0.3 V, R_LOAD = 300 Ω
R_LOAD = 300 Ω, τ < 100ms
B = 10 Hz to 100 kHz
26
1.14 1.2
1.08 1.2
0.6
9
90
250
2.5
0.3
100 300
55
80
2
3.25 2
22
60
70
-15 -50
-50
330
1. Reference voltage is measured from V_OUT to ADJ pin.
2. V_d measured when the output voltage has dropped 100 mV from the nominal value obtained at 14 V.
Max. Unit
V
1.26
V
1.32
V
4.5 mV
30 mV
200
mV
600
30 mA
1
mA
mA
dB
1.2
V
V
50
µA
V
V
V
µV_RMS
Doc ID 6740 Rev 19
9/21