參數(shù)資料
型號： KA278R05YDTU
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Low Dropout Voltage Regulator
中文描述： 5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PZFM4
封裝： TO-220F, 4 PIN
文件頁數(shù)： 1/20頁
文件大?。?/td> 208K
代理商： KA278R05YDTU
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.2
Features
KA278RXXC-series (33/05/51/09/12)
2A/3.3V, 5V, 5.1V, 9V, 12V output low dropout voltage
regulator
TO-220 full-mold package (4pin)
Overcurrent protection, thermal shutdown
Overvoltage protection, short circuit protection
With output disable function
KA278RA05C
Nominal 5V output without adjusting
Output adjustable between 1.25V and 32V
2A output low dropout voltage regulator
TO-220 full-mold package (4pin)
Overcurrent protection, thermal shutdown
Overvoltage protection, short circuit protection
Description
The KA278RXXC is a low-dropout voltage regulator suit-
able for various electronic equipments. It provides
constant voltage power source with TO-220-4 lead full mold
package. The dropout voltage of KA278RXXC 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 .
TO-220F-4L
1.Vin 2. Vo 3. GND 4. Vdis - KA278RXXC(33/05/51/09/12)
1.Vin 2. Vo 3. GND 4. Vadj - KA278RA05C
1
Internal Block Diagram
THERMAL SHUTDOWN
BANDGAP REFERENCE
OVERVOLTAGE
PROTECTION
SOA PROTECTION
SHORTCIRCUIT
PROTECTION
1
4
3
2
Vin
Vadj
Vo
GND
Q1
Rin
Rref
+
-
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
(KA278RA05C)
(KA278R33/05/51/09/12C)
K A278RX XC-S eries
2A Output Low Dropout Voltage Regulators
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KA278R09 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low Dropout Voltage Regulator
KA278R09C 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2A Output Low Dropout Voltage Regulators
KA278R09CTU 功能描述:低壓差穩(wěn)壓器 - LDO 2A Fixed 9V Regulator (LDO) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
KA278R09CYDTU 功能描述:低壓差穩(wěn)壓器 - LDO LDO 2A RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
KA278R09TU 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
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