Datasheet

DocID9587 Rev 15 7/22
LD3985 Electrical characteristics
22
5 Electrical characteristics
T
J
= 25 °C, V
I
= V
O(NOM)
+0.5 V, C
I
= 1 µF, C
BYP
= 10 nF, I
O
= 1 mA, V
INH
= 1.4 V, unless
otherwise specified.
Table 5. LD3985 electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
I
Operating input voltage 2.5 6 V
V
O
Output voltage accuracy,
V
O(NOM)
< 2.5 V
I
O
= 1 mA -50 50
mV
T
J
= -40 to 125 °C -75 75
V
O
Output voltage accuracy,
V
O(NOM)
≥ 2.5V
I
O
= 1 mA -2 2 % of
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(NOM)
= 4.7 to 5V -0.19 0.19
ΔV
O
Load regulation
I
O
= 1 mA to 150mA, V
O(NOM)
< 2.5 V
T
J
= -40 to 125 °C
0.002 0.008 %/mA
ΔV
O
Load regulation
I
O
= 1 mA to 150 mA, V
O(NOM)
≥ 2.5 V
T
J
= -40 to 125 °C (for flip-chip)
0.0004 0.002
%/mA
I
O
= 1 mA to 150mA, T
J
= -40 to 125°C
(for SOT23-5L/TSOT23-5L), V
O(NOM)
≥
2.5 V
0.0025 0.005
ΔV
O
Output AC line regulation
(2)
V
I
= V
O(NOM)
+ 1 V, I
O
= 150 mA,
t
R
= t
F
= 30 µs
1.5 mV
PP
I
Q
Quiescent current
ON mode: V
INH
= 1.2 V
I
O
= 0 85
µA
I
O
= 0, T
J
= -40 to 125 °C 150
I
O
= 0 to 150 mA 170
I
O
= 0 to 150 mA, T
J
= -40 to 125 °C 250
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
= 50 mA 20
I
O
= 50 mA, T
J
= -40 to 125 °C 35
I
O
= 100 mA 45
I
O
= 100 mA, T
J
= -40 to 125 °C 70
I
O
= 150 mA 60
I
O
= 150 mA, T
J
= -40 to 125 °C 100
I
SC
Short-circuit current R
L
= 0 600 mA