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KA78R33 датащи(PDF) 1 Page - Fairchild Semiconductor

номер детали KA78R33
подробное описание детали  Low Dropout Voltage Regulator
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA78R33 датащи(HTML) 1 Page - Fairchild Semiconductor

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©2001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
Features
• 1A / 3.3V Output low dropout voltage regulator
• TO220 Full-Mold package (4PIN)
• Overcurrent protection, Thermal shutdown
• Overvoltage protection, Short-Circuit protection
• With output disable function
Description
The KA78R33 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.
Dropout voltage of KA78R33 is below 0.5V in full rated
current(1A). This regulator has various function such as
peak current protection, thermal shut down, overvoltage
protection and 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
-CIRCUIT
KA78R33
Low Dropout Voltage Regulator


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