LFXXAB Datasheet, PDF (11/45 Pages) STMicroelectronics – Very low drop voltage regulators with inhibit

LFxxAB - LFxxC
Electrical characteristics
Table 9.
Symbol
Electrical characteristics for LF25C (refer to the test circuits, T_J = 25°C, C_I = 0.1 µF,
C_O = 2.2 μF unless otherwise specified.)
Parameter
Test conditions
Min. Typ. Max. Unit
V_O Output voltage
I_O = 50 mA, V_I = 4.5 V
2.45 2.5 2.55
V
I_O = 50 mA, V_I = 4.5 V, T_a = -25 to 85°C 2.4
2.6
V_I Operating input voltage I_O = 500 mA
16
V
I_O Output current limit
1
A
ΔV_O Line regulation
V_I = 3.5 to 16 V, I_O = 5 mA
2
12 mV
ΔV_O Load regulation
V_I = 3.8 V, I_O = 5 to 500 mA
2
12 mV
I_d Quiescent current
V_I = 3.5 to 16V, I_O = 0mA
ON MODE
V_I = 3.8 to 16V, I_O=500mA
0.5
1
mA
12
V_I = 6 V
OFF MODE
50 100 µA
f = 120 Hz
82
SVR Supply voltage rejection I_O = 5 mA, V_I = 4.5 ± 1 V f = 1 KHz
77
dB
f = 10 KHz
65
eN Output noise voltage
B = 10 Hz to 100 KHz
50
µV
V_d Dropout voltage
V_IL Control input logic low
V_IH Control input logic high
I_I Control input current
C_O
Output bypass
capacitance
I_O = 200 mA
I_O = 500 mA
T_a = -40 to 125°C
T_a = -40 to 125°C
V_I = 6 V, V_C = 6 V
ESR = 0.1 to 10 Ω, I_O = 0 to 500 mA
0.2 0.35
V
0.4 0.7
0.8
V
2
V
10
µA
2
10
µF
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