Datasheet

3
LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
PARAMETER CONDITIONS MIN TYP MAX UNITS
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
= 1Vp-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
The ● 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.
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
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