Datasheet

Electrical characteristics LDS3985xx
6/22 DocID11039 Rev 8
4 Electrical characteristics
T
J
= 25 °C, V
I
= V
O(NOM)
+ 0.5 V, C
I
= 1 µF, C
O
= 2.2 µF, C
BYP
= 33 nF, I
O
= 1 mA,
V
INH
= 1.4 V, unless otherwise specified.
Table 4. LDS3985xx electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
I
Operating input voltage 2.5 6 V
V
O
Output voltage < 2.5 V
I
O
= 1 mA -50 50
mV
T
J
= - 40 to 125 °C -75 75
V
O
Output voltage ≥ 2.5 V
I
O
= 1 mA -2 2
%
V
O(NOM)
T
J
= - 40 to 125 °C -3 3
ΔV
O
Line regulation
(1)
V
I
= V
O(NOM)
+ 0.5 to 6 V,
T
J
= - 40 to 125 °C
-0.1 0.1
%/V
V
O
= 4.7 to 5 V -0.19 0.19
ΔV
O
Load regulation
I
O
= 1 mA to 300 mA, V
O
≤ 2.5 V
T
J
= - 40 to 125 °C
0.005 0.01 %/mA
ΔV
O
Load regulation
I
O
= 1 mA to 300 mA, V
O
≥ 2.5 V
T
J
= - 40 to 125 °C
0.0008 0.004 %/mA
ΔV
O
Output AC line regulation
(2)
V
I
= V
O(NOM)
+ 1 V, I
O
= 300 mA,
t
R
= t
F
= 30 µs
5mV
PP
I
Q
Quiescent current ON mode:
V
INH
= 1.24 V
I
O
= 0 85
µA
I
O
= 0, T
J
= - 40 to 125 °C 150
I
O
= 0 to 300 mA 200
I
O
= 0 to 300 mA, T
J
= - 40 to 125 °C 300
OFF mode: V
INH
= 0.4 V
0.003
T
J
= - 40 to 125 °C 1.5
V
DROP
Dropout voltage
(3)
I
O
= 1 mA 0.4
mV
I
O
= 1 mA, T
J
= - 40 to 125 °C 2
I
O
= 150 mA 60
I
O
= 150 mA, T
J
= - 40 to 125 °C 100
I
O
= 300 mA 150
I
O
= 300 mA, T
J
= - 40 to 125 °C 250
I
SC
Short-circuit current R
L
= 0 600 mA
SVR Supply voltage rejection
V
I
= V
O(NOM)
+ 0.25 V ±
V
RIPPLE
= 0.1 V, I
O
= 50 mA
For V
O(NOM)
< 2.5 V,
V
I
= 2.55 V
f = 1 kHz 55
dB
f = 10 kHz 50