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PDF SA1117C Data sheet ( Hoja de datos )
| Número de pieza | SA1117C | |
| Descripción | 1A LDO VOLTAGE REGULATOR | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SA1117C (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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SA1117C_Datasheet
1A LDO VOLTAGE REGULATOR
DESCRIPTION
The SA1117C is a positive low voltage dropout regulator;
voltage dropout is only 1.2V at 1A.
SA1117C provides two versions: fixed and adjustable versions.
VOUT has a tolerance of less than 1.5% 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 SA1117C offers some key features include thermal
shutdown and current limiting. It is suitable for all electronic
products.
FEATURES
* 1.5% output accuracy for fixed versions 1.5V, 1.8V, 2.5V,
3.3V, 5.0V and adjustable version
* 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-II Active Terminator
* Cellular Phone
* Cordless Telephones
* Battery Powered Systems
* Portable Instrumentation
* SMPS Post-Regulator
ORDERING INFORMATION (Temperature range: -40°C ~125°C)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.2 2012.11.19
Page 1 of 10
1 page  
Silan
Microelectronics
SA1117C_Datasheet
Characteristics
RMS Output Noise
Thermal Resistor
Coefficient (No Heat-
Sink)
Symbol
Conditions
% of VOUT, 10Hz≤f≤10kHz
SOT-223-3L
θJA TO-252-2L
PIN CONFIGURATION
Min.
--
--
--
Typ.
0.005
120
100
Max.
--
--
--
Unit
%
°C/W
SA1117CH
SOT-223-3L
123
SA1117CD
TO-252-2L
123
PIN DESCRIPTION
Pin No.
1
2
3
Pin name
GND/ADJ
VOUT
VIN
I/O Functions
--/O Ground/ADJ
O Output voltage
I Input supply voltage
FUNCTION DESCRIPTION
The SA1117C is a LDO regulator, it’s pass transistor is made up of a single NPN transistor being driven by
a PNP. The dropout voltage is defined as: VDROP = VBE+ VSAT.
The SA1117C series of fixed and adjustable regulators are easy to use. Output voltages are 1.2V, 1.5V,
1.8V, 2.5V, 3.3V, and 5.0V.On-chip thermal shut down provides protection against any combination of
overload and ambient temperature that would create excessive junction temperature.
The SA1117C requires an output capacitor for device stability. Its value of 22µF tantalum covers all cases
of bypassing the adjustment terminal. Without bypassing the adjustment terminal smaller capacitors can be
used with equally good results which depend upon the application circuit. In general, linear regulator
stability decreases with higher output currents.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.2 2012.11.19
Page 5 of 10
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SA1117C.PDF ] | |
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