3
LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
PARAMETER CONDITIONS MIN TYP MAX UNITS
Load Regulation LT1117 (V
IN
– V
OUT
) = 3V, 10mA ≤ I
OUT
≤ 800mA (Note 2) ● 0.1 0.4 %
LT1117-2.85 V
IN
= 4.25V, 0 ≤ I
OUT
≤ 800mA (Note 2) ● 110 mV
LT1117-3.3 V
IN
= 4.75V, 0 ≤ I
OUT
≤ 800mA (Note 2) ● 110 mV
LT1117-5 V
IN
= 6.5V, 0 ≤ I
OUT
≤ 800mA (Note 2) ● 115 mV
Dropout Voltage I
OUT
= 100mA, 0°C ≤ T
J
≤ 125°C (Note 3) 1.00 1.10 V
I
OUT
= 500mA, 0°C ≤ T
J
≤ 125°C (Note 3) 1.05 1.15 V
I
OUT
= 800mA, 0°C ≤ T
J
≤ 125°C (Note 3) 1.10 1.20 V
I
OUT
= 100mA, –40°C ≤ T
J
< 0°C (Note 3) 1.00 1.20 V
I
OUT
= 500mA, –40°C ≤ T
J
< 0°C (Note 3) 1.05 1.25 V
I
OUT
= 800mA, –40°C ≤ T
J
< 0°C (Note 3) 1.10 1.30 V
Current Limit (V
IN
– V
OUT
) = 5V, T
J
= 25°C, 800 950 1200 mA
Minimum Load Current LT1117 (V
IN
– V
OUT
) = 15V (Note 4) ● 1.7 5 mA
Quiescent Current LT1117-2.85 V
IN
≤ 10V ● 510 mA
LT1117-3.3 V
IN
≤ 15V ● 510 mA
LT1117-5 V
IN
≤ 15V ● 510 mA
Thermal Regulation T
A
= 25°C, 30ms Pulse 0.01 0.1 %/W
Ripple Rejection f
RIPPLE
= 120Hz, (V
IN
– V
OUT
) = 3V, V
RIPPLE
= 1V
P-P
● 60 75 dB
Adjust Pin Current ● 55 120 µA
Adjust Pin Current Change 10mA ≤ I
OUT
≤ 800mA, 1.4V ≤ (V
IN
– V
OUT
) ≤ 10V ● 0.2 5 µA
Temperature Stability 0.5 %
Long Term Stability T
A
= 125°C, 1000Hrs 0.3 %
RMS Output Noise (% of V
OUT
), 10Hz ≤ f ≤ 10kHz 0.003 %
Thermal Resistance (Junction-to-Case, at Tab) 15 °C/W
E
LECTR
IC
AL C CHARA TERIST
ICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
to the device may be imparied.
Note 2: 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 3: 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 4: Minimum load current is defined as the minimum output current
required to maintain regulation.
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Minimum Operating Current
(Adjustable Device) Short-Circuit Current Load Regulation
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
J
= 25°C.
INPUT/OUTPUT DIFFERENTIAL (V)
0
0
MINIMUM OPERATING CURRENT (mA)
1
3
4
10 15 20
LT1117 • TPC02
5
T
J
= 25°C
T
J
= 125°C
T
J
= –55°C
2
INPUT/OUTPUT DIFFERENTIAL (V)
0
0
SHORT CIRCUIT CURRENT (A)
0.25
0.50
0.75
1.25
10 15
LT1117 • TPC03
5
1.00
T
J
= 25°C
T
J
= 125°C
TEMPERATURE (°C)
–50
–0.20
OUTPUT VOLTAGE DEVIATION (%)
–0.15
–0.10
–0.05
0.10
50 75 125
LT1117 • TPC04
0
0.05
0
–25 25 100
∆ I
LOAD
= 800mA
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