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データシート KA78R05TU PDF ( 特性, スペック, ピン接続図 )

部品番号 KA78R05TU
部品説明 Low Dropout Voltage Regulator
メーカ Fairchild
ロゴ Fairchild ロゴ 
プレビュー
Total 10 pages
		
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KA78R05TU Datasheet, KA78R05TU PDF,ピン配置, 機能
KA78R05
Low Dropout Voltage Regulator
www.fairchildsemi.com
Features
• 1A / 5V 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 KA78R05 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 KA78R05 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
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
SHSOHORRTT-CCIRCCUUIITT
PROTECTION
Q1
R1
R2
2 Vo
©2001 Fairchild Semiconductor Corporation
3
GND
Rev. 1.0.4

1 Page



KA78R05TU pdf, ピン配列
Typical Perfomance Characteristics
7
6
5
RL=
4
3
RL=5
2
1
0
0 5 10
Input voltage Vin (V)
15
Figure 1. Output Voltage vs. Input Voltage
KA78R05
50
40
30
20
10
0
0
RL=
5 10
Input voltage Vin (V)
15
Figure 2. Quiescent Current vs. Input Voltage
7
6
5
4
3
2
1
0
0 0.5 1 1.5 2 2.5 3
Disable voltage Vdis (V)
Figure 3. Output Voltage vs. Disable Voltage
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
-25
0 25 50 75 100 125
TEMPERATURE Tj(oC )
Figure 4. Output Voltage vs. Temperature(Tj)
10
8
6
4
2
0
-25
0 25 50 75 100 125
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
0.6
0.5
0.4
0.3
0.2
0.1
0
-25
Io=3A
2.0A
1.0A
0.5A
0 25 50 75 100 125
Junction temperature Tj(oC)
Figure 6. Dropout Voltage vs. Junction Temperature
3


3Pages


KA78R05TU 電子部品, 半導体
KA78R05
Mechanical Dimensions
Package
Dimensions in millimeters
TO-220F-4L
6

6 Page





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