LT1118-2.5_15 Datasheet, PDF (3/8 Pages) Linear Technology – 800mA, Source and Sink Regulators Adjustable and Fixed 2.5V, 2.85V, 5V Output

LT1118/LT1118-2.5
LT1118-2.85/LT1118-5
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. (Note 2)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Quiescent Current (V_IN)
Quiescent Current in Shutdown (V_IN)
Enable Input Thresholds
V_EN = 5V
V_EN = 0V
Input Low Level
Input High Level
l
0.6
1
mA
l
1
10
μA
l 0.4
1.4
V
l
1.4
2
V
Enable Input Current
Feedback Voltage
0V ≤ V_EN ≤ 5V
No Load (25°C) (LT1118)
All Operating Conditions (Note 3)
l –1
25
μA
1.213 1.225 1.237
V
l 1.200 1.225 1.250
V
Output Voltage
No Load (25°C) (LT1118-2.5)
All Operating Conditions (Note 3)
2.47
2.5
2.53
V
l 2.45
2.5
2.55
V
No Load (25°C) (LT1118-2.85)
All Operating Conditions (Note 3)
2.82 2.85 2.88
V
l 2.79 2.85 2.91
V
No Load (25°C) (LT1118-5)
All Operating Conditions (Note 3)
4.95
5
5.05
V
l 4.90
5
5.10
V
Line Regulation (Note 4)
Load Regulation (Note 4)
Dropout Voltage (Note 5)
FB Pin Bias Current
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)
0mA ≤ I_L ≤ 800mA (LT1118)
– 400mA ≤ I_L ≤ 0mA
0mA ≤ I_L ≤ 800mA (LT1118-2.5)
– 400mA ≤ I_L ≤ 0mA
0mA ≤ I_L ≤ 800mA (LT1118-2.85)
– 400mA ≤ I_L ≤ 0mA
0mA ≤ I_L ≤ 800mA (LT1118-5)
– 400mA ≤ I_L ≤ 0mA
I_L = 100mA
I_L = 800mA
LT1118
l
6
mV
l
6
mV
l
6
mV
l
10
mV
l
6
mV
l
6
mV
l
12
mV
l
12
mV
l
12
mV
l
12
mV
l
25
mV
l
25
mV
0.85 1.1
V
1
1.3
V
0.35
1
μA
Minimum Output Voltage
LT1118
l
2.1
V
Ripple Rejection
Load Transient Settling Time,
ΔV = 1%
Output Short-Circuit Current
Thermal Shutdown Junction Temperature
f_RIPPLE = 120Hz, V_IN – V_OUT = 2V
V_RIPPLE = 0.5V_P-P
0mA ≤ I_L ≤ 800mA, C_LOAD = 1μF
–400mA ≤ I_L ≤ 0mA, C_LOAD = 1μF
V_OUT = 0V, Sourcing
V_OUT = V_IN, Sinking
No Load
60
80
dB
5
μs
5
μs
800 1200
mA
–700 –400
mA
170
°C
Enable Turn-On Delay
No Load
50
μs
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 specified, 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.
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 defined as the minimum input to output voltage
measured while sourcing the specified current.
1118fd
3