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Электронный компонент: S1117-15Q

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KSI-2066-003
1
S1117AQ/S1117-xxQ
Adjustable and Fixed LDO Voltage Regulator



Descriptions
The S1117 series of positive adjustable and fixed regulators are designed to provide 1A
with higher efficiency. All internal circuitry is designed to operate down to 1.3V input to
output differential. On-chip trimming adjusts reference voltage to 2%
Features
Adjustable or Fixed output
Output Current of 1A
Low Dropout, 1.3V maximum at 1A Output Current
Thermal Shutdown Protection
Fast Transient Response
Ordering Information
Type NO.
Marking
Package Code
S1117AQ/S1117xxQ S1117Q/S1117Q SOT-223
:Voltage Code (Aj : 1.25V, 15:1.5V,:18: 1.8V, 25:2.5V, 33:3.3V, 50:5.0V)
:Voltage Code (285:2.85V)


















S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
t
t
o
o
r
r
PIN Connections
1. GND/ADJ
2,4. Output voltage
3. Input voltage
Outline Dimensions
(Unit : mm )
BLOCK DIAGRAM
KSI-2066-003
2
S1117AQ/S1117-xxQ
Absolute Maximum Ratings
Ta=25
C
Characteristic Symbol Rating
Unit
Input Voltage
V
I
16
V
P
D
1 (Note1)
1.5
Power Dissipation
P
D
2 (Note2)
0.8
W
Junction Temperature
T
J
150
C
Storage Temperature Range
T
stg
-55 ~ 150
C
Note 1 : Mounted on a glass epoxy circuit board of 25.4 x 25.4mm. (at 1oz copper area)
Note 2 : No Heat sink
Device Selection Guide
(NOTE3)





Device Output
Voltage
S1117AQ Adjustable
S1117-15Q 1.5V
S1117-18Q 1.8V
S1117-25Q 2.5V
S1117-285Q 2.85V
S1117-33Q 3.3V
S1117-50Q 5.0V
Note 3 : Other fixed versions are available Vo=1.5V to 5V
KSI-2066-003
3
S1117AQ/S1117-xxQ
Electrical Characteristics
(
Electrical Characteristics at T
J
= 25 and V
I
=(V
O
+1.5V), I
L
=10 , C
O
=10 unless otherwise specified.)
Characteristic Symbol
Device
Test Condition
Min Typ Max
Unit
V
I
= (V
O
+1.5V),I
O
= 10
1.225
1.275
S1117A
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 1.200
1.25
1.300
V
I
= (V
O
+1.5V),I
O
= 10
1.470
1.530
S1117-
15
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 1.440
1.5
1.560
V
I
= (V
O
+1.5V),I
O
= 10
1.764
1.836
S1117-
18
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 1.728
1.8
1.872
V
I
= (V
O
+1.5V),I
O
= 10
2.450
2.550
S1117-
25
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 2.400
2.5
2.600
V
I
= (V
O
+1.5V),I
O
= 10
2.793
2.907
S1117-
285
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 2.736
2.85
2.964
V
I
= (V
O
+1.5V),I
O
= 10
3.234 3.3 3.366
S1117-
33
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 3.168
3.432
V
I
= (V
O
+1.5V),I
O
= 10
4.900 5.0 5.100
Output Voltage
V
O
S1117-
50
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000
* 4.800
5.200
V
Line Regulation
(Note4)
V
O(VI)
All
1.5V V
I
-V
O
7V
I
O
=10
- 5 10
Load Regulation
(Note4)
V
O(IL)
All
V
I
=(V
O
+1.5V)
I
O
=10 ~ 1000
- 10 30
Quiescent
Current
I
QC
All
V
I
= V
O
+ 1.5V
V
ADJ
=0V
* - 7 13
Minimum Load
Current
I
L(MIN)
S1117A V
I
=(V
O
+1.5V), V
O
=0V *
3
7
Adjust Pin
Current
I
ADJ
S1117A
V
I
= (V
O
+1.5V) to 7V
I
O
= 10
* 55 90
Dropout Voltage
(Note6)
V
DROP
All
I
O
=1000
* - 1.2 1.3 V
Ripple Rejection
(Note5)
RR All
V
I
-V
O
=1.5V, I
O
=1000
V
Ripple
=1V
P-P
, f=120
60 72 -
Current Limit
I
LIMIT
All
(V
I
-V
O
)=1.5V *
1
A
The * denotes the specifications which apply over the full temperature range.
Note 4: Low duty pulse testing with Kelvin connections required.
Note 5: 120 input ripple (C
ADJ
for ADJ=25 )
Note 6: V
O
= 1%







KSI-2066-003
4
S1117AQ/S1117-xxQ
Typical Applications
C
V
R
S1117A
10
10
O
(Fixed Version)
Adj/GND
O
I
L
I
V
C
Fig. 1 Fixed Voltage Regulator
125
(1
)
225
(1
)
C
10
Adj
Vout=3.5V
S1117-xx
1
I
10
2
O
O
C
(Fixed Version)
V
I
R
V
R
V
O
=V
ADJ
* (1 + R
2
/R
1
) + I
ADJ
*R
2
Fig. 2 Adjustable Voltage Regulator














Notes:
1) C
I
needed if device is far from filter capacitors
2) C
o
minimum value required for stability
I
ADJ
KSI-2066-003
5
S1117AQ/S1117-xxQ
Electrical Characteristic Curves




































Fig. 3 V
DROP
vs. I
OUT
Fig. 4 V
OUT
vs. T
a
Fig. 5 RR vs. Frequency
Fig. 6 Temperature Stability
Fig. 7 I
ADJ
vs. T
a
Fig. 8 P
D
vs. T
a