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부품번호 | KA78R05CTU 기능 |
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기능 | 1A Output Low Dropout Voltage Regulators | ||
제조업체 | Fairchild | ||
로고 | |||
전체 18 페이지수
www.fairchildsemi.com
KA78RXXC-Series
1A Output Low Dropout Voltage Regulators
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
Internal Block Diagram
Vin 1
THERMAL SHUTDOWN
BANDGAP REFERENCE
Vdis
HIGH / LOW
4
-
+
OUTPUT
ON / OFF
1.4V
1
1. Vin 2. VO 3. GND 4. Vdis
OVERVOLTAGE
PROTECTION
-
+
SOA PROTECTION
Q1
R1
SHSOHORRT-TCCIIRCCUUIITT
PROTECTION
R2
2 Vo
©2011 Fairchild Semiconductor Corporation
3
GND
Rev. 1.0.1
KA78RXXC-SERIES
Typical Performance Characteristics
KA78R33
5.25
4.50
3.75
3.00
RL=
2.25
1.50
RL=3.3Ω
0.75
0
0
24
68
Input voltage Vin (V)
10
Figure 1. Output Voltage vs. Input Voltage
5.25
4.50
3.75
3.00
2.25
1.50
0.75
0
0
0.5 1 1.5 2 2.5
Disable voltage Vdis (V)
3
Figure 3. Output Voltage vs. Disable Voltage
10
8
6
4
2
0
-25
0 25 50 75 100 125
Junction temperature Tj(oC)
Figure 5. Quiescent Current vs. Temperature(Tj)
80
60
40
20
RL= ∞
0
0 5 10 15 20
Input voltage Vin(V)
Figure 2. Quiescent Current vs. Input Voltage
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
-25
0 25 50 75 100 125
TEMPERATURE Tj(oC)
Figure 4. Output Voltage vs. Temperature(Tj)
0.55
0.50
0.45
0.40
1.0A
0.35
0.30
0.25
0.20
-25
0
25 50 75 100 125
Junction Temp Tj [℃]
Figure 6. Dropout Voltage vs.Junction Temperature
4
4페이지 Typical Performance Characteristics (Continued)
KA78RXXC-SERIES
20
15
10
5
0
-25 0 25 50 75 100 125
TEMPERATURE TjJ(oC)
Figure 7. Power Dissipation vs. Temperature(Tj)
2.75
2.50
2.25
2.00
1.75
1.50
0
12345
Input-output differential voltage Vin-Vo (V)
6
Figure 9. Output Peak Currenrt vs.
Input-Output Differential Voltage
100
80
60
40
20
0
0 0.5 1.0 1.5 2.0 2.5 3.0
Output Current(A)
Figure 8. Overcurrent Protection Characteristics
(Typical Value)
7
7페이지 | |||
구 성 | 총 18 페이지수 | ||
다운로드 | [ KA78R05CTU.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
KA78R05CTU | 1A Output Low Dropout Voltage Regulators | Fairchild |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |