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KA78R33CYDTU データシート(PDF) 1 Page - Fairchild Semiconductor

部品番号 KA78R33CYDTU
部品情報  1A Output Low Dropout Voltage Regulators
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メーカー  FAIRCHILD [Fairchild Semiconductor]
ホームページ  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA78R33CYDTU データシート(HTML) 1 Page - Fairchild Semiconductor

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©2003 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
• 1A/3.3V, 5V, 8V, 9V, 12V, 15V 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 KA78RXXC 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 KA78RXXC is
below 0.5V in full rated current(1A).
This regulator has various functions 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
SHORT-CIRCUIT
KA78RXXC-Series
1A Output Low Dropout Voltage Regulators


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