LT1118/LT1118-2.5
LT1118-2.85/LT1118-5
3
1118fd
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Unless otherwide specifi ed, testing done at V
CC
= 5V
(LT1118-2.5, LT1118-2.85) or V
CC
= 7V (LT1118-5). V
EN
= V
CC
.
Output C
LOAD
= 1μF, I
LOAD
= 0.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Quiescent Current (V
IN
)V
EN
= 5V
l
0.6 1 mA
Quiescent Current in Shutdown (V
IN
)V
EN
= 0V
l
110 μA
Enable Input Thresholds Input Low Level
Input High Level
l
l
0.4 1.4
1.4 2
V
V
Enable Input Current 0V ≤ V
EN
≤ 5V
l
–1 25 μA
Feedback Voltage No Load (25°C) (LT1118)
All Operating Conditions (Note 3)
l
1.213
1.200
1.225
1.225
1.237
1.250
V
V
Output Voltage No Load (25°C) (LT1118-2.5)
All Operating Conditions (Note 3)
l
2.47
2.45
2.5
2.5
2.53
2.55
V
V
No Load (25°C) (LT1118-2.85)
All Operating Conditions (Note 3)
l
2.82
2.79
2.85
2.85
2.88
2.91
V
V
No Load (25°C) (LT1118-5)
All Operating Conditions (Note 3)
l
4.95
4.90
5
5
5.05
5.10
V
V
Line Regulation (Note 4) I
L
= 0mA, 4.2V ≤ V
IN
≤ 15V (LT1118)
I
L
= 0mA, 4.2V ≤ V
IN
≤ 15V (LT1118-2.5)
I
L
= 0mA, 4.75V ≤ V
IN
≤ 15V (LT1118-2.85)
I
L
= 0mA, 6.5V ≤ V
IN
≤ 15V (LT1118-5)
l
l
l
l
6
6
6
10
mV
mV
mV
mV
Load Regulation (Note 4) 0mA ≤ I
L
≤ 800mA (LT1118)
–400mA ≤ I
L
≤ 0mA
l
l
6
6
mV
mV
0mA ≤ I
L
≤ 800mA (LT1118-2.5)
–400mA ≤ I
L
≤ 0mA
l
l
12
12
mV
mV
0mA ≤ I
L
≤ 800mA (LT1118-2.85)
–400mA ≤ I
L
≤ 0mA
l
l
12
12
mV
mV
0mA ≤ I
L
≤ 800mA (LT1118-5)
–400mA ≤ I
L
≤ 0mA
l
l
25
25
mV
mV
Dropout Voltage (Note 5) I
L
= 100mA
I
L
= 800mA
0.85
1
1.1
1.3
V
V
FB Pin Bias Current LT1118 0.35 1 μA
Minimum Output Voltage LT1118
l
2.1 V
Ripple Rejection f
RIPPLE
= 120Hz, V
IN
– V
OUT
= 2V
V
RIPPLE
= 0.5V
P-P
60 80 dB
Load Transient Settling Time,
ΔV = 1%
0mA ≤ I
L
≤ 800mA, C
LOAD
= 1μF
–400mA ≤ I
L
≤ 0mA, C
LOAD
= 1μF
5
5
μs
μs
Output Short-Circuit Current V
OUT
= 0V, Sourcing
V
OUT
= V
IN
, Sinking
800 1200
–700 –400
mA
mA
Thermal Shutdown Junction Temperature No Load 170 °C
Enable Turn-On Delay No Load 50 μs
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 2)
Note 3: All operating conditions include the combined effects of load
current, input voltage and temperature over each parameter’s full range.
Note 4: Load and line regulation are tested at a constant junction
temperature by low duty cycle pulse testing.
Note 5: Dropout voltage is defi ned as the minimum input to output voltage
measured while sourcing the specifi ed current.
