SA1117
1A LDO VOLTAGE REGULATOR
DESCRIPTION
The SA1117 is a positive low voltage dropout regulator, voltage
dropout is only 1.2V at 1A.
SA1117 has two versions: the fixed version and the adjustable
version. V
OUT
has a tolerance of less than 1% for fixed versions
1.5V, 1.8V, 2.5V, 3.3V, 5.0V and adjustable version or 2% output
accuracy for fixed version 1.2V.
The SA1117 integrates overheating protection and current limit
circuits. It is an suitable for all electronic products.
FEATURES
* 1% accuracy for fixed output V
OUT
while the voltage is 1.5V,
1.8V, 2.5V, 3.3V, 5.0V and the adjustable output V
OUT
* 2% output accuracy for fixed version 1.2V
* Low Dropout Voltage: 1.2V at 1A output current
* Current Limiting
* Thermal Shutdown
* Temperature Range: -40°C to 125°C
APPLICATIONS
* Laptop, Palmtop, and Notebook
Computers
* Battery Charger
* SCSI-|| Active Terminator
* Cellular Phone
* Cordless Telephones
* Battery Powered Systems
* Portable Devices
* SMPS Post-Regulator
ORDERING INFORMATION
(Temperature range: -40°C ~125°C)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http:// www.silan.com.cn
REV:1.3
2009.07.22
Page 1 of 13
SA1117
Part No.
SA1117H-ADJTR
SA1117H-1.2TR
SA1117H-1.5TR
SA1117H-1.8TR
SA1117H-2.5TR
SA1117H-3.3TR
SA1117H-5.0TR
SA1117R-ADJ TR
SA1117R-1.2TR
SA1117R-1.5TR
SA1117R-1.8TR
SA1117R-2.5TR
SA1117R-3.3TR
SA1117R-5.0TR
SA1117T-ADJ
SA1117T-1.2
SA1117T-1.5
SA1117T-1.8
SA1117T-2.5
SA1117T-3.3
SA1117T-5.0
SA1117D-ADJ
SA1117D-ADJTR
SA1117D-1.2
SA1117D-1.2TR
SA1117D-1.5
SA1117D-1.5TR
SA1117D-1.8
SA1117D-1.8TR
SA1117D-2.5
SA1117D-2.5TR
SA1117D-3.3
SA1117D-3.3TR
SA1117D-5.0
SA1117D-5.0TR
SA1117S-ADJ
SA1117S-ADJTR
SA1117S-1.2
SA1117S-1.2TR
SA1117S-1.5
SA1117S-1.5TR
TO-263-3L
TO-252-2L
TO-220-3L
SOT-89-3L
SOT-223-3L
Package
Marking
SA1117H-ADJ
SA1117H-1.2
SA1117H-1.5
SA1117H-1.8
SA1117H-2.5
SA1117H-3.3
SA1117H-5.0
SAJR
S12R
S15R
S18R
S25R
S33R
S50R
SA1117T-ADJ
SA1117T-1.2
SA1117T-1.5
SA1117T-1.8
SA1117T-2.5
SA1117T-3.3
SA1117T-5.0
SA1117D-ADJ
SA1117D-ADJ
SA1117D-1.2
SA1117D-1.2
SA1117D-1.5
SA1117D-1.5
SA1117D-1.8
SA1117D-1.8
SA1117D-2.5
SA1117D-2.5
SA1117D-3.3
SA1117D-3.3
SA1117D-5.0
SA1117D-5.0
SA1117S-ADJ
SA1117S-ADJ
SA1117S-1.2
SA1117S-1.2
SA1117S-1.5
SA1117S-1.5
Material
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Packing Type
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tube
Tube
Tube
Tube
Tube
Tube
Tube
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http:// www.silan.com.cn
REV:1.3
2009.07.22
Page 2 of 13
SA1117
Part No.
SA1117S-1.8
SA1117S-1.8TR
SA1117S-2.5
SA1117S-2.5TR
SA1117S-3.3
SA1117S-3.3TR
SA1117S-5.0
SA1117S-5.0TR
SA1117H-ADJGTR
SA1117H-1.2GTR
SA1117H-1.5GTR
SA1117H-1.8GTR
SA1117H-2.5GTR
SA1117H-3.3GTR
SA1117H-5.0GTR
SA1117R-ADJGTR
SA1117R-1.2GTR
SA1117R-1.5GTR
SA1117R-1.8GTR
SA1117R-2.5GTR
SA1117R-3.3GTR
SA1117R-5.0GTR
SA1117T-ADJG
SA1117T-1.2G
SA1117T-1.5G
SA1117T-1.8G
SA1117T-2.5G
SA1117T-3.3G
SA1117T-5.0G
SA1117D-ADJG
SA1117D-ADJGTR
SA1117D-1.2G
SA1117D-1.2GTR
SA1117D-1.5G
SA1117D-1.5GTR
SA1117D-1.8G
SA1117D-1.8GTR
SA1117D-2.5G
SA1117D-2.5GTR
TO-252-2L
TO-220-3L
SOT-89-3L
SOT-223-3L
TO-263-3L
Package
Marking
SA1117S-1.8
SA1117S-1.8
SA1117S-2.5
SA1117S-2.5
SA1117S-3.3
SA1117S-3.3
SA1117S-5.0
SA1117S-5.0
1117H-ADJG
1117H-1.2G
1117H-1.5G
1117H-1.8G
1117H-2.5G
1117H-3.3G
1117H-5.0G
RAJG
R12G
R15G
R18G
R25G
R33G
R50G
1117T-ADJG
1117T-1.2G
1117T-1.5G
1117T-1.8G
1117T-2.5G
1117T-3.3G
1117T-5.0G
1117D-ADJG
1117D-ADJG
1117D-1.2G
1117D-1.2G
1117D-1.5G
1117D-1.5G
1117D-1.8G
1117D-1.8G
1117D-2.5G
1117D-2.5G
Material
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Pb free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Packing Type
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tube
Tube
Tube
Tube
Tube
Tube
Tube
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http:// www.silan.com.cn
REV:1.3
2009.07.22
Page 3 of 13
SA1117
Part No.
SA1117D-3.3G
SA1117D-3.3GTR
SA1117D-5.0G
SA1117D-5.0GTR
SA1117S-ADJG
SA1117S-ADJGTR
SA1117S-1.2G
SA1117S-1.2GTR
SA1117S-1.5G
SA1117S-1.5GTR
SA1117S-1.8G
SA1117S-1.8GTR
SA1117S-2.5G
SA1117S-2.5GTR
SA1117S-3.3G
SA1117S-3.3GTR
SA1117S-5.0G
SA1117S-5.0GTR
TO-263-3L
TO-252-2L
Package
Marking
1117D-3.3G
1117D-3.3G
1117D-5.0G
1117D-5.0G
1117S-ADJG
1117S-ADJG
1117S-1.2G
1117S-1.2G
1117S-1.5G
1117S-1.5G
1117S-1.8G
1117S-1.8G
1117S-2.5G
1117S-2.5G
1117S-3.3G
1117S-3.3G
1117S-5.0G
1117S-5.0G
Material
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Halogen free
Packing Type
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
BLOCK DIAGRAM
3
V
IN
TSD
Current
Limit
V
OUT
Fixed: F1 and F2 connect, disconnect A
F2
A
Adj: A connect, F1 and F2 disconnect
1
ADJ/GND
BandGap
F1
2
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http:// www.silan.com.cn
REV:1.3
2009.07.22
Page 4 of 13
SA1117
ABOSOLUTE MAXIMUM RATINGS
Characteristics
Input Supply Voltage
Lead Temperature (Soldering, 5 seconds)
Operating Junction Temperature Range
Storage Temperature Range
Power Dissipation
ESD Tolerance (Minimum)
(max)
,
Symbol
V
IN
T
Lead
TJ
T
STG
P
D
ESD
Ratings
20
260
150
-65 ~ +150
Internally Limited (Note1)
2000
Unit
V
°C
°C
°C
mW
V
Note1: The maximum allowable power dissipation is a function of maximum operating junction temperature T
J
the junction to ambient thermal resistance
θ
JA
, and the ambient temperature T
amb
. The maximum
allowable power dissipation at any ambient temperature is given: P
D (max)
= (T
J (max)
- T
amb
)/θ
JA,
exceeding the
maximum allowable power limit will result in excessive die temperature; thus, the regulator will go into thermal
shutdown. The junction to ambient thermal resistance
θ
JA
of different packages may be different, and the he
value of
θ
JA
depends on mounting technique.
RECOMMENDED OPERATING CONDITIONS
Characteristics
Input Voltage
Operating Junction Temperature Range
Symbol
V
IN
T
J
Ratings
15
-40 ~ +125
Unit
V
°C
ELECTRICAL CHARACTERISTICS
(T
amb
=25°C, unless otherwise specified. Limits appearing in Boldface
type apply over the entire junction temperature range for operation, -40°C to 125°C. )
Characteristics
Reference Voltage
Symbol
V
REF
Conditions
SA1117-ADJ,
I
OUT
=10mA, V
IN
-V
OUT
=2V, T
J
=25°C
SA1117-1.2,
I
OUT
=10mΑ, V
IN
=3.2V ,T
J
=25°C
10mA≤I
OUT
≤1A,
3.0V≤V
IN
≤10V
SA1117-1.5,
I
OUT
=10mΑ, V
IN
=3.5V ,T
J
=25°C
10mA≤I
OUT
≤1A,
3.0V≤V
IN
≤10V
SA1117-1.8,
Output Voltage
V
OUT
I
OUT
=10mA, V
IN
=3.8V, T
J
=25°C ,
0≤I
OUT
≤1A,
3.2V≤V
IN
≤10V
SA1117-2.5,
I
OUT
=10mA, V
IN
=4.5V,T
J
=25°C ,
0≤I
OUT
≤1A,
3.9V≤V
IN
≤10V
SA1117-3.3,
I
OUT
=10mA, V
IN
=5V,T
J
=25°C ,
0≤I
OUT
≤1A,
4.75V≤V
IN
≤10V
3.267
3.235
3.300
3.300
3.333
3.365
V
2.475
2.450
2.500
2.500
2.525
2.550
V
1.782
1.764
1.800
1.800
1.818
1.836
V
1.485
1.470
1.500
1.500
1.515
1.530
V
1.176
1.152
1.2
1.2
1.224
1.248
V
1.238
1.250
1.250
1.262
1.270
V
10mA≤I
OUT
≤1A,
1.4V≤V
IN
-V
OUT
≤10V
1.225
Min.
Typ.
Max.
Unit
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http:// www.silan.com.cn
REV:1.3
2009.07.22
Page 5 of 13