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參數(shù)資料
| 型號(hào)： | NCP1445T |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4.0 A 280 kHz/560 kHz Boost Regulators |
| 中文描述： | 8 A SWITCHING REGULATOR, 640 kHz SWITCHING FREQ-MAX, PSFM7 |
| 封裝： | TO-220, 7 PIN |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 163K |
| 代理商： | NCP1445T |
Semiconductor Components Industries, LLC, 2004
October, 2004 Rev. 7
1
Publication Order Number:
NCP1442/D
NCP1442, NCP1443,
NCP1444, NCP1445
4.0 A 280 kHz/560 kHz
Boost Regulators
The NCP1442/3/4/5 products are 280 kHz/560 kHz switching
regulators with a high efficiency, 4.0 A integrated switch. These parts
operate over a wide input voltage range, from 2.7 V to 30 V. The
flexibility of the design allows the chips to operate in most power
supply configurations, including boost, flyback, forward, inverting,
and SEPIC. The ICs utilize current mode architecture, which allows
excellent load and line regulation, as well as a practical means for
limiting current. Combining highfrequency operation with a highly
integrated regulator circuit results in an extremely compact power
supply solution. The circuit design includes provisions for features
such as frequency synchronization, shutdown, and feedback controls
for either positive or negative voltage regulation.
Part Number
Frequency
Feedback Voltage Polarity
NCP1442
280 kHz
Positive
NCP1443
280 kHz
Negative
NCP1444
560 kHz
Positive
NCP1445
560 kHz
Negative
Features
PbFree Packages are Available*
Integrated Power Switch: 4.0 A Guaranteed
Wide Input Range: 2.7 V to 30 V
High Frequency Allows for Small Components
Minimum External Components
Easy External Synchronization
Builtin Overcurrent Protection
Frequency Foldback Reduces Component Stress During an
Overcurrent Condition
Thermal Shutdown with Hysteresis
Regulates Either Positive or Negative Output Voltages
Shut Down Current: 50 A Maximum
Applications
Boost Converter
Inverting Converter
Distributed Power
Portable Computers
Battery Powered Systems
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 18 of this data sheet.
PowerFLEX
7PIN
F SUFFIX
CASE 936J
1
7
NCP1442/4
Pin 1. V
C
2. FB
3. TEST
4. GND
5. V
SW
6. SS
7. V
CC
NCP1443/5
1. V
C
2. TEST
3. NFB
4. GND
5. V
SW
6. SS
7. V
CC
PIN CONNECTIONS AND
MARKING DIAGRAMS
x
A
WL = Wafer Lot
Y
= Year
WW = Work Week
= Device Number 2, 3, 4, or 5
= Assembly Location
NC
P144xF
AWLYWW
NC
P144xT
AWLYWW
1
7
1
PowerFLEX
7PIN
7
1
7
7 LEAD, TO220
T SUFFIX
CASE 821P
7 LEAD, TO220
http://onsemi.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NCP1445TG | 制造商:ON Semiconductor 功能描述:CONV DC-DC SGL-OUT NON-INV/INV/STEP UP/STEP DOWN 7PIN TO-220 - Rail/Tube |
| NCP1450A_EVM/3.0V | 制造商:ON Semiconductor 功能描述:NCV1450A Step-Up Application,3.0V Output |
| NCP1450ASN19T1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.9V 1A Boost DC-DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCP1450ASN19T1G | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.9V 1A Boost DC-DC PWM RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| NCP1450ASN27T1 | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2.7V 1A Boost DC-DC RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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