LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
ELECTRICAL CHARACTERISTICS
PARAMETER
Quiescent Current
LT1117-2.85
LT1117-3.3
LT1117-5
CONDITIONS
V
IN
≤
10V
V
IN
≤
15V
V
IN
≤
15V
T
A
= 25°C, 30ms Pulse
f
RIPPLE
= 120Hz, (V
IN
– V
OUT
) = 3V,
V
RIPPLE
= 1Vp-p
10mA
≤
I
OUT
≤
800mA, 1.4V
≤
(V
IN
– V
OUT
)
≤
10V
T
A
= 125°C, 1000Hrs
(% of V
OUT
), 10Hz
≤
f
≤
10kHz
(Junction-to-Case, at Tab)
q
q
q
q
q
q
MIN
TYP
5
5
5
0.01
MAX
10
10
10
0.1
UNITS
mA
mA
mA
%/W
dB
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
Thermal Resistance
60
75
55
0.2
0.5
0.3
0.003
15
120
5
µA
µA
%
%
%
°C/W
The
q
denotes specifications which apply over the full operating
temperature range.
Note 1:
See thermal regulation specification for changes in output voltage
due to heating effects. Load regulation and line regulation are measured at
a constant junction temperature by low duty cycle pulse testing.
Note 2:
Dropout voltage is specified over the full output current range of
the device. Dropout voltage is defined as the minimum input/output
differential measured at the specified output current. Test points and limits
are also shown on the Dropout Voltage curve.
Note 3:
Minimum load current is defined as the minimum output current
required to maintain regulation.
TYPICAL PERFOR A CE CHARACTERISTICS
Minimum Operating Current
(Adjustable Device)
4
1.25
MINIMUM OPERATING CURRENT (mA)
OUTPUT VOLTAGE DEVIATION (%)
SHORT CIRCUIT CURRENT (A)
3
T
J
= 125°C
T
J
= 25°C
2
T
J
= –55°C
1
0
0
5
10
15
20
INPUT/OUTPUT DIFFERENTIAL (V)
LT1117 • TPC02
U W
Short-Circuit Current
0.10
T
J
= 125°C
T
J
= 25°C
0.75
Load Regulation
∆
I
LOAD
= 800mA
0.05
0
– 0.05
– 0.10
– 0.15
– 0.20
–50
1.00
0.50
0.25
0
0
5
10
15
LT1117 • TPC03
–25
0
25
50
75
100
125
INPUT/OUTPUT DIFFERENTIAL (V)
TEMPERATURE (°C)
LT1117 • TPC04
3
LINER [ LINEAR TECHNOLOGY ]
