Datasheet

Electrical characteristics LD1117
20/44 DocID2572 Rev 33
Refer to the test circuits, T
J
= -40 to 125 °C, C
O
= 10 µF, unless otherwise specified.
Table 14. Electrical characteristics of LD1117C (adjustable)
Symbol Parameter Test condition Min. Typ. Max. Unit
V
ref
Reference voltage V
in
- V
O
= 2 V, I
O
= 10 mA, T
J
= 25 °C 1.225 1.25 1.275 V
V
ref
Reference voltage I
O
= 10 to 800 mA, V
in
- V
O
= 1.4 to 10 V 1.2 1.3 V
ΔV
O
Line regulation V
in
- V
O
= 1.5 to 13.75 V, I
O
= 10 mA 1 %
ΔV
O
Load regulation V
in
- V
O
= 3 V, I
O
= 10 to 800 mA 1 %
ΔV
O
Temperature stability 0.5 %
ΔV
O
Long term stability 1000 hrs, T
J
= 125 °C 0.3 %
V
in
Operating input voltage 15 V
I
adj
Adjustment pin current V
in
≤ 15 V 60 120 µA
ΔI
adj
Adjustment pin current change V
in
- V
O
= 1.4 to 10 V, I
O
= 10 to 800 mA 1 10 µA
I
O(min)
Minimum load current V
in
= 15 V 2 5 mA
I
O
Output current V
in
- V
O
= 5 V, T
J
= 25 °C 800 950 1300 mA
eN Output noise (%V
O
) B = 10 Hz to 10 kHz, T
J
= 25 °C 0.003 %
SVR Supply voltage rejection
I
O
= 40 mA, f = 120 Hz, T
J
= 25 °C
V
in
- V
O
= 3 V, V
ripple
= 1 V
PP
60 75 dB
V
d
Dropout voltage
I
O
= 100 mA, T
J
= 0 to 125 °C 1 1.1
VI
O
= 500 mA, T
J
= 0 to 125 °C 1.05 1.15
I
O
= 800 mA, T
J
= 0 to 125 °C 1.10 1.2
V
d
Dropout voltage
I
O
= 100 mA 1.1
VI
O
= 500 mA 1.2
I
O
= 800 mA 1.3
Thermal regulation T
a
= 25 °C, 30 ms Pulse 0.01 0.1 %/W