LT1117IST Linear Technology, LT1117IST Datasheet - Page 5

• Manufacturer Part Number: LT1117IST
• Description: IC REG LDO POS ADJ 800MA SOT223
• Manufacturer: Linear Technology

Specifications of LT1117IST

• Regulator Topology: Positive Adjustable
• Voltage - Output: 1.25 ~ 13.7 V
• Voltage - Input: 2.45 ~ 15 V
• Voltage - Dropout (typical): 1.1V @ 800mA
• Number Of Regulators: 1
• Current - Limit (min): 800mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-223 (3 leads + Tab), SC-73, TO-261
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
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
= 200μF AT f < 60Hz
= 25μF AT f > 60Hz
V
100
5.25
4.25
3.25
RIPPLE
–20
–40
0
60
40
20
0
TEMPERATURE (°C)
FREQUENCY (Hz)
0
LT1117-2.85
Line Transient Response
25
C
C
I
(V
OUT
≤ 3V
IN
OUT
20
IN
= 1μF
= 0.1A
P-P
– V
1k
50
= 10μF TANTALUM
40
OUT)
(V
75
60
IN
≥ V
– V
10k
80
DROPOUT
100
V
0.5V
TIME (μs)
RIPPLE
OUT)
100
P-P
125
≥ 3V
1117 G04
1117 G07
≤
120
100k
150
140
160
180
–0.1
–0.2
–0.5
1117 G10
100
0.3
0.2
0.1
0.5
90
80
70
60
50
40
30
20
10
0
0
0
200
0
0
LT1117 Ripple Rejection
vs Current
Load Transient Response
LT1117-2.85
V
C
C
C
C
V
PRELOAD = 0.1A
OUT
ADJ
OUT
IN
OUT
IN
10
= 10μF
= 4.25V
= 25μF
= 5V
= 25μF
= 10μF TANTALUM
20
0.2
OUTPUT CURRENT (A)
30
40
TIME (μs)
V
V
RIPPLE
RIPPLE
0.4
50
60
f
f
RIPPLE
≤ 3V
≤ 0.5V
RIPPLE
70
P-P
0.6
P-P
= 20kHz
= 120Hz
80
1117 G05
90
7.50
6.50
5.50
1117 G08
–20
–40
60
40
20
0
100
0.8
0
LT1117-5
Line Transient Response
20
C
C
I
OUT
40
IN
OUT
LT1117-3.3/LT1117-5
–1.0
–2.0
–0.1
–0.2
–0.5
= 1μF
2.0
1.0
0.3
0.2
0.1
0.5
LT1117/LT1117-2.85
= 0.1A
= 10μF TANTALUM
60
0
0
0
–50
0
Temperature Stability
LT1117-5
Load Transient Response
C
C
V
PRELOAD = 0.1A
80
IN
OUT
IN
TIME (μs)
10
–25
= 10μF
= 6.5V
100
= 10μF TANTALUM
20
120
0
30
TEMPERATURE (°C)
140
25
40
TIME (μs)
160
50
50
180
1117 G11
60
75
200
70
100
80
125
1117 G06
90
1117 G09
1117fd
5
150
100