LT1117 LINER [Linear Technology], LT1117 Datasheet - Page 4

• Manufacturer Part Number: LT1117
• Description: 800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 5V
• Manufacturer: LINER [Linear Technology]

LT1117/LT1117-2.85
LT1117-3.3/LT1117-5
TYPICAL PERFOR
4
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
–50
10
LT1117 Ripple Rejection
Adjust Pin Current
C
C
I
OUT
ADJ
ADJ
–25
= 0.5A
= 200 F AT f < 60Hz
= 25 F AT f > 60Hz
V
100
RIPPLE
0
TEMPERATURE ( C)
FREQUENCY (Hz)
25
(V
IN
3V
– V
1k
50
P-P
5.25
4.25
3.25
–40
–20
60
40
20
OUT)
0
(V
75
0
IN
LT1117-2.8
Line Transient Response
– V
V
20
C
C
I
100
10k
DROPOUT
OUT
V
0.5V
IN
OUT
RIPPLE
OUT)
W
LT1117 • TPC05
LT1117 • TPC08
= 1 F
40
= 0.1A
P-P
= 10 F TANTALUM
125
A
3V
60
100k
U
150
80
TIME ( s)
CE
100
120
C
– 0.1
– 0.2
– 0.5
HARA TERISTICS
100
0.3
0.2
0.1
0.5
140
90
80
70
60
50
40
30
20
10
0
0
0
LT1117 Ripple Rejection vs Current
Load Transient Response
0
LT1117-2.85
0
160
LT1117 • TPC11
V
C
C
10
OUT
ADJ
OUT
180
20
= 25 F
= 5V
= 25 F
C
200
0.2
OUTPUT CURRENT (A)
30
40
C
C
V
PRELOAD = 0.1A
TIME ( s)
IN
OUT
IN
V
V
RIPPLE
RIPPLE
0.4
= 10 F
= 4.25V
50
= 10 F TANTALUM
60
f
f
RIPPLE
RIPPLE
3V
0.5V
70
P-P
0.6
P-P
= 20kHz
= 120Hz
LT1117 • TPC06
LT1117 • TPC09
80
90
7.50
6.50
5.50
–40
–20
60
40
20
100
0.8
0
0
LT1117-5
Line Transient Response
20
C
C
I
OUT
IN
OUT
40
– 0.1
– 0.2
– 0.5
= 1 F
–1.0
–2.0
= 0.1A
2.0
1.0
0.3
0.2
0.1
0.5
= 10 F TANTALUM
60
0
0
0
–50
Temperature Stability
LT1117-5
Load Transient Response
0
80
TIME ( s)
10
–25
100
20
120
0
30
TEMPERATURE ( C)
140
25
40
C
C
V
PRELOAD = 0.1A
TIME ( s)
IN
OUT
IN
160
LT1117 • TPC12
= 10 F
= 6.5V
50
50
= 10 F TANTALUM
180
60
75
200
70
100
LT1117 • TPC07
LT1117 • TPC10
80
125
90
150
100