Datasheet

Electrical characteristics LD49300XX08, LD49300XX10, LD49300XX12
8/20 Doc ID 12861 Rev 3
6 Electrical characteristics
(T
J
= - 25 °C to 125 °C, V
BIAS
= V
O
+ 2.1 V
(1)
; V
I
= V
O
+ 1 V; V
EN
= V
BIAS
(2)
, I
O
= 10 mA;
C
I
= 1 µF; C
O
= 10 µF; C
BIAS
= 1 µF; unless otherwise specified. Typical values are referred
to T
J
= 25 °C).
Table 5. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage accuracy
T
J
= 25 °C, fixed voltage options -1.5 1.5
%
Over temperature range -3 3
V
LINE
Line regulation V
I
= V
O
+ 1 V to 5.5 V -0.1 0.1 %/V
V
LOAD
Load regulation I
L
= 0 mA to 3 A, V
BIAS
≥ 3 V 1 %
V
DROP
Dropout voltage (V
I
- V
O
)
I
L
= 1.5 A 200
mV
I
L
= 3 A 400
V
DROP
Dropout voltage (V
BIAS
- V
O
)I
L
= 3 A
(1)
1.5 2.1 V
I
GND
Ground pin current
I
L
= 0 mA 4 6
mA
I
L
= 3 A 4 6
I
GND_SHD
Ground pin current in shutdown V
EN
≤ 0.4 V
(2)
5µA
I
VBIAS
Current through V
BIAS
I
L
= 0 mA 3 5
mA
I
L
= 3 A 3 5
I
L
Current limit V
O
= 0 V 4.5 A
Enable input
(2)
V
EN
Enable input threshold (fixed
voltage only)
Regulator Enable 1.4
V
Regulator Shutdown 0.4
I
EN
Enable pin input current 0.1 1 µA
Reference
V
REF
Reference voltage
T
J
= 25 °C 0.788 0.8 0.812
V
Over temperature range 0.776 0.8 0.824
SVR Supply voltage rejection
V
I
= 2.5 V ± 0.5 V, V
O
= 1 V,
F = 120 Hz, V
BIAS
= 3.3 V
68 dB
1. For V
O
≤ 1 V, V
BIAS
dropout specification does not apply due to a minimum 3 V V
BIAS
input.
2. Fixed output voltage version only.