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PDF SA78R25F Data sheet ( Hoja de datos )

Número de pieza SA78R25F
Descripción 1A LDO VOLTAGE REGULATOR
Fabricantes Silan Microelectronics 
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SA78RXX_Datasheet
1A LDO VOLTAGE REGULATOR
DESCRIPTION
The SA78RXX is a positive low voltage dropout regulator, the
voltage dropout is below 0.5V at 1A.
The SA78RXX provides two versions: fixed and adjustable
versions. The SA78RXX is available in fixed output voltages 2.5V,
3.3V, 5V, 8V, 9V, 12V and 15V. The SA78RXX offers some key
features include thermal shutdown, peak current protection,
overvoltage protection and output disable function. The SA78RXX
is an excellent choice for use in various electronic equipments.
FEATURES
* Available fixed version 2.5V, 3.3V, 5V, 8V, 9V, 12V,15V and
adjustable version
* Low Dropout Voltage: 150mV at 1A output current
* Current limiting: 2A
APPLICATIONS
* Overvoltage protection: 40V
* Built-in output disable function
* TO-220 full-mold package (4pin) and TO-252-5L package(5pin)
* Overcurrent protection, thermal shutdown
* Overvoltage protection, short circuit protection
* High Efficiency Linear Regulators
* Post Regulators for Switching Supplies
* Battery Charger
* Microprocessor Supply
* Desktop PCs, RISC and Embedded
Processors Supply
ORDERING INFORMATION (Tamb=-20~+80°C)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2010.11.22
Page 1 of 16

1 page




SA78R25F pdf
SA78RXX_Datasheet
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
Input Voltage
VIN
Operating Junction Temperature Range
Tj
Ratings
SA78R25
SA78R33
SA78R05
SA78R08
SA78R09
SA78R12
SA78R15
-20~+80
3.3
5
7
10
11
15
20
Unit
V
°C
ELECTRICAL CHARACTERISTICS(Io=0.5A, Ta =25°C, unless otherwise specified. )
Characteristics
Output Voltage
Line Regulation
Symbol
Conditions
SA78R25
SA78R33
SA78R05
VOUT
SA78R08
SA78R09
Rline
SA78R12
SA78R15
SA78R25 : VIN=4V to 10V
SA78R33 : VIN=4V to 10V
SA78R05 : VIN =6V to 12V
SA78R08 : VIN =9V to 25V
SA78R09 : VIN =10V to 25V
Min.
2.44
3.22
4.88
7.8
8.78
11.7
14.6
Typ.
2.5
3.3
5
8
9
12
15
0.5
Load Regulation
Dropout Voltage
Quiescent Current
Ripple Rejection
Disable Voltage High
Disable Voltage Low
Disable Bias Current High
Disable Bias Current Low
Reference Voltage
RLOAD
VDROP
IQ
PSRR
VDISH
VDISL
IDISH
IDISL
Vref
SA78R12 : VIN =13V to 29V
SA78R15 : VIN =16V to 30V
5mA < Io < 1A
IOUT=1A
IO=0A;VDIS=0.4V
Output active
Output disabled
VDIS =2.7V
VDIS=0.4V
SA78R00
0.1
0.15
3
45 55
2.0
1.24 1.27
Max.
2.56
3.38
5.12
8.2
9.22
12.3
15.4
Unit
V
2.5 %
2.0 %
0.5 V
10 mA
dB
V
0.8 V
20 μA
-0.4 mA
1.30 V
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2010.11.22
Page 5 of 16

5 Page





SA78R25F arduino
SA78R08
SA78RXX_Datasheet
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.0
2010.11.22
Page 11 of 16

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