Datasheet

LD1117 SERIES
14/27
Table 18: Electrical Characteristics Of LD1117C (ADJUSTABLE) (refer to the test circuits,
T
J
= -40 to 125°C, C
O
= 10 µF unless otherwise specified)
TYPICAL APPLICATIONS
Figure 5: Negative Supply
Symbol Parameter Test Conditions 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
∆V
O
Line Regulation V
in
- V
O
= 1.5 to 13.75 V I
O
= 10 mA 1 %
∆V
O
Load Regulation V
in
- V
O
= 3 V I
O
= 10 to 800 mA 1 %
∆V
O
Temperature Stability 0.5 %
∆V
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
∆I
adj
Adjustment Pin Current
Change
V
in
- V
O
= 1.4 to 10 V
I
O
= 10 to 800 mA
110µA
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 =10Hz to 10KHz T
J
= 25°C 0.003 %
SVR Supply Voltage Rejection I
O
= 40 mA f = 120Hz 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 V
I
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 V
I
O
= 500 mA 1.2
I
O
= 800 mA 1.3
Thermal Regulation T
a
= 25°C 30ms Pulse 0.01 0.1 %/W