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PDF KA278R05 Data sheet ( Hoja de datos )
| Número de pieza | KA278R05 | |
| Descripción | Low Dropout Voltage Regulator | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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KA278R05
Low Dropout Voltage Regulator
www.fairchildsemi.com
Features
• 2A/5V Output Low Dropout Voltage Regulator
• TO-220 Full-Mold Package (4Pin)
• Overcurrent Protection, Thermal Shutdown
• Overvoltage Protection, Short Circuit Protection
• With Output Disable Function
Description
The KA278R05 is a low-dropout voltage regulator suitable
for various electronic equipments. It provides constant
voltage power source with TO-220 4 lead full mold package.
The dropout voltage of KA278R05 is below 0.5V in full
rated current(2A). This regulator has various functions such
as a peak current protection, a thermal shut down, an
overvoltage protection and an output disable function.
TO-220F-4L
1
1.Vin 2. Vo 3. GND 4. Vdis
Internal Block Diagram
Vin 1
THERMAL SHUTDOWN
BANDGAP REFERENCE
Vdis
HIGH / LOW
4
-
+
OUTPUT
ON / OFF
1.4V
OVERVOLTAGE
PROTECTION
-
+
SOA PROTECTION
SHSOHROTR-CTCIRIRCCUUITIT
PROTECTION
Q1
R1
R2
2 Vo
©2002 Fairchild Semiconductor Corporation
3
GND
Rev. 1.0.2
1 page  
KA278R05
Typical Application
Vin
1
Vo
2
4
Vdis
3
GND
Disable Signal
Figure 1. Application Circuit
• Ci is required if regulator is located an appreciable distance from power supply filter.
• Co improves stability and transient response.(Co > 47µF)
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet KA278R05.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| KA278R05 | Low Dropout Voltage Regulator | Fairchild |
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| KA278R05TU | Low Dropout Voltage Regulator | Fairchild |
| KA278R05YDTU | Low Dropout Voltage Regulator | Fairchild |
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