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KA278R05YDTU Scheda tecnica(PDF) 1 Page - Fairchild Semiconductor

Il numero della parte KA278R05YDTU
Spiegazioni elettronici  Low Dropout Voltage Regulator
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA278R05YDTU Scheda tecnica(HTML) 1 Page - Fairchild Semiconductor

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©2002 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.2
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.Vin 2. Vo 3. GND 4. Vdis
1
Internal Block Diagram
THERMAL SHUTDOWN
BANDGAP REFERENCE
OVERVOLTAGE
PROTECTION
SOA PROTECTION
SHORTCIRCUIT
PROTECTION
1
4
3
2
Vin
Vdis
Vo
GND
HIGH / LOW
OUTPUT
ON / OFF
Q1
R1
R2
-
+
-
+
1.4V
SHORT-CIRCUIT
KA278R05
Low Dropout Voltage Regulator


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