KSD-I0T001-000
1
S1117APIC/S1117-xxPIC
Adjustable and Fixed Voltage Regulator
Descriptions
The S1117 series of positive adjustable and fixed regulators are designed to provide 1A with high 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
Ordering Information
Type NO.
Marking
Package Code
S1117APIC/S1117xxPIC S1117PI/ S1117PI TO-220F-3SL
: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)
Outline Dimensions
(Unit : mm)
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. Output
3. Input
BLOCK DIAGRAM
3.05~3.35
15.
40~15.
80
9.80~10.20
6.
37~6.
97
12.
20~12.
60
9.
10~9.
30
2.
00 Typ.
1.07 Min.
0.90 Max.
2.54 Typ.
2.54 Typ.
4.
70 Max.
2.
70 Max.
0.
60 Max.
KSD-I0T001-000
2
S1117APIC/S1117-xxPIC
Absolute Maximum Ratings
[Ta=25
C]
Characteristic Symbol
Rating
Unit
Input voltage
V
I
16
V
Power Dissipation
P
D
2.0
W
Junction Temperature
T
J
150
C
Operating temperature range
T
opr
0 ~ +125
Storage temperature range
T
stg
-55 ~ +150
C
Recommended operating conditions
Characteristic Symbol
Min.
Max.
Unit
Input voltage
V
I
V
O
+1.5V V
O
+7V V
Output current
I
O
1
1000
mA
Device Selection Guide
Note 1 : Other fixed versions are available V
O
=1.5V ~ 5V
Device Output
Voltage
S1117APIC Adjustable
S1117-15PIC 1.50V
S1117-18PIC 1.80V
S1117-25PIC 2.50V
S1117-285PIC 2.85V
S1117-33PIC 3.30V
S1117-50PIC 5.00V
KSD-I0T001-000
3
S1117APIC/S1117-xxPIC
Electrical Characteristics
(Electrical Characteristics at 0T
a
125 and V
I
=(V
O
+1.5V), Io=10mA, C
O
=10F, unless otherwise specified.)
Characteristic Symbol Device
Test Condition
Min Typ Max
Unit
*
1.23
1.28
S1117A
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
1.20
1.25
1.30
*
1.47
1.53
S1117-15
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
1.44
1.50
1.56
*
1.76
1.84
S1117-18
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
1.73
1.80
1.87
*
2.45
2.55
S1117-25
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
2.40
2.50
2.60
*
2.79
2.91
S1117-285
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
2.74
2.85
2.96
*
3.23 3.30 3.37
S1117-33
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
3.17 3.43
*
4.90 5.00 5.10
Output voltage
V
O
S1117-50
V
I
= (V
O
+1.5V) to 7V
I
O
= 0 to 1000mA
4.80 5.20
V
Line regulation
(Note2)
V
O(VI)
All
1.5V V
I
-V
O
7V
I
O
=10mA
*
- 5 10
mV
Load regulation
(Note2)
V
O(IL)
All
1.5V V
I
-V
O
7V
I
O
=10mA ~ 1000mA
*
- 10 30 mV
Quiescent
current
I
QC
All
I
O
=0 -
7
13
mA
Minimum load
current
I
L(MIN)
S1117A
V
Adj
=0V
3
7
mA
Adjust pin
current
I
ADJ
S1117A
V
I
= (V
O
+1.5V) to 7V
I
O
= 100mA
55 90
A
Adjust pin
current change
I
ADJ
S1117A
1.5V V
I
-
V
O
7V
I
O
=10mA ~ 1000mA
1 5
A
Dropout voltage
V
DROP
All
I
O
=1000mA
*
-
1.2
1.3
V
Ripple rejection ratio
RR
All
I
O
=1000mA
V
Ripple
=1V
P-P
, f=120
*
60 72
-
dB
Current limit
I
LIMIT
All
I
O
1000mA
*
1.1
A
[ * ] Ta=25
Note 2: Low duty pulse testing with Kelvin connections required.
KSD-I0T001-000
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S1117APIC/S1117-xxPIC
Typical Applications
Fig. 1 Fixed Voltage Regulator
2
ADJ
1
2
ADJ
R
I
+
)
R
R
+
1
(
V
=
Vo
Fig. 2 Adjustable Voltage Regulator
V
S1117A
10
C
(Adjustable Version)
R
I
R
I
125
(1
)
O
225
(1
)
O
C
10
1
V
Vo=3.5V
2
Adj
Notes 3:
1) C
I
needed if device is far from filter capacitors
2) C
O
minimum value required for stability
I
ADJ
R
10
O
10
O
S1117-XX
V
V
(Fixed Version)
L
Adj/GND
I
C
C
I
KSD-I0T001-000
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S1117APIC/S1117-xxPIC
Electrical Characteristic Curves
Fig.3 V
DROP
vs I
O
Fig.4 Vo
vs T
a
1.8
200
1000
600
400
1.4
0
800
2.0
0.8
0.4
0.6
1.6
1.2
1.0
Dro
pou
t Vo
ltag
e
V
DROP
[V
]
Output Current I
O
[mA]
Ta=0C
50C
125C
Out
put
V
o
l
t
a
g
e
De
vi
at
i
on [%
]
Ambient Temperature T
a
[]
0
150
75
50
-25
100
25
125
0.90
0.30
1.20
-0.6
-1.2
-0.9
0.60
0.00
-0.3
V
I
=V
O
+1.5V, I
O
=500mA
Fig.5 I
L(MIN)
vs V
I
-V
O
Fig.6 I
Adj
vs Ta
Input-Output Differential Voltage [V]
1.0
8
1.8
3.4
2.6
0
6
3
4.2
M
i
n
i
mu
m L
o
ad
Cu
rr
en
t
I
L(MIN)
[m
A]
4
1
2
5
7
1.4
2.2
3.0
3.8
Ta=125
50
0
Fig.7 P
D
vs T
a
Ambient Temperature T
a
[C]
100
50
25
25
15
125
75
150
20
5
10
0
0
Po
wer di
ssi
pat
i
o
n
P
D
[W
]
Without Heat Sink
Adj
u
st Pi
n Cu
r
r
ent
I
Adj
[
A]
Ambient Temperature T
a
[]
0
150
75
50
-25
100
25
125
T
C
=25C
80
70
85
55
40
45
75
65
60
V
I
=V
O
+1.5V, I
O
=100mA
S1117A, V
Adj
=0
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