LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
TYPICAL PERFOR A CE CHARACTERISTICS
LT1117 Ripple Rejection
100
90
80
RIPPLE REJECTION (dB)
70
60
50
40
30
20
10
0
C
ADJ
= 200µF AT f < 60Hz
C
ADJ
= 25µF AT f > 60Hz
I
OUT
= 0.5A
10
100
1k
10k
FREQUENCY (Hz)
100k
(V
IN
– V
OUT)
≥
V
DROPOUT
V
RIPPLE
≤
3V
P-P
V
RIPPLE
≤
0.5V
P-P
RIPPLE REJECTION (dB)
(V
IN
– V
OUT)
≥
3V
f
RIPPLE
= 120Hz
V
RIPPLE
≤
3V
P-P
f
RIPPLE
= 20kHz
V
RIPPLE
≤
0.5V
P-P
OUTPUT VOLTAGE CHANGE (%)
Adjust Pin Current
100
OUPUT VOLTAGE
DEVIATION (V)
90
AJUST PIN CURRENT (µA)
0.2
0.1
0
–0.1
–0.2
80
70
60
50
40
OUPUT VOLTAGE
DEVIATION (V)
LOAD CURRENT
(A)
20
10
0
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
LT1117 • TPC08
0.5
0
–0.5
0
10 20 30 40 50 60 70 80 90 100
TIME (µs)
LT1117 • TPC09
LOAD CURRENT
(A)
30
LT1117-2.8
Line Transient Response
OUPUT VOLTAGE
DEVIATION (mV)
OUPUT VOLTAGE
DEVIATION (mV)
C
IN
= 1µF
C
OUT
= 10µF TANTALUM
40
I
OUT
= 0.1A
20
0
–20
–40
60
60
40
20
0
–20
–40
INPUT VOLTAGE
(V)
7.50
6.50
5.50
INPUT VOLTAGE
(V)
5.25
4.25
3.25
0
20 40 60 80 100 120 140 160 180 200
TIME (µs)
LT1117 • TPC11
4
U W
LT1117 • TPC05
LT1117 Ripple Rejection vs Current
100
V
OUT
= 5V
90 C
ADJ
= 25µF
C
OUT
= 25µF
80
70
60
50
40
30
20
10
0
0
0.2
0.4
0.6
OUTPUT CURRENT (A)
0.8
2.0
Temperature Stability
1.0
0
–1.0
–2.0
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
LT1117 • TPC07
LT1117 • TPC06
LT1117-2.85
Load Transient Response
0.3
C
IN
= 10µF
C
OUT
= 10µF TANTALUM
V
IN
= 4.25V
PRELOAD = 0.1A
0.3
LT1117-5
Load Transient Response
C
IN
= 10µF
0.2 C
OUT
= 10µF TANTALUM
V
IN
= 6.5V
PRELOAD = 0.1A
0.1
0
–0.1
–0.2
0.5
0
–0.5
0
10 20 30 40 50 60 70 80 90 100
TIME (µs)
LT1117 • TPC10
LT1117-5
Line Transient Response
C
IN
= 1µF
C
OUT
= 10µF TANTALUM
I
OUT
= 0.1A
0
20 40 60 80 100 120 140 160 180 200
TIME (µs)
LT1117 • TPC12
LINER [ LINEAR TECHNOLOGY ]
