NCP1443

更新时间： 2024-09-19 22:54:31

品牌	Logo	应用领域
安森美 - ONSEMI		稳压器
页数	文件大小	规格书
20页	166K
描述
4.0 A 280 kHz/560 kHz Boost Regulators

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NCP1443 数据手册

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 high−frequency 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.

http://onsemi.com

PowerFLEX]

7−PIN

F SUFFIX

CASE 936J

7 LEAD, TO−220

T SUFFIX

CASE 821P

Part Number

NCP1442

NCP1443

NCP1444

NCP1445

Frequency

280 kHz

560 kHz

Feedback Voltage Polarity

Positive

PIN CONNECTIONS AND

MARKING DIAGRAMS

Negative

Positive

Negative

Features

P144xT

AWLYWW

P144xF

AWLYWW

• Pb−Free 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

PowerFLEX

7−PIN

7 LEAD, TO−220

• Easy External Synchronization

• Built−in Overcurrent Protection

• Frequency Foldback Reduces Component Stress During an

Overcurrent Condition

NCP1443/5

NCP1442/4

1. V

Pin 1. V

2. TEST

3. NFB

4. GND

2. FB

3. TEST

4. GND

• Thermal Shutdown with Hysteresis

• Regulates Either Positive or Negative Output Voltages

• Shut Down Current: 50 mA Maximum

5. V

6. SS

7. V

Applications

= Device Number 2, 3, 4, or 5

= Assembly Location

• Boost Converter

WL = Wafer Lot

= Year

WW = Work Week

• Inverting Converter

• Distributed Power

• Portable Computers

• Battery Powered Systems

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 18 of this data sheet.

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Semiconductor Components Industries, LLC, 2004

Publication Order Number:

October, 2004 − Rev. 7

NCP1442/D

12 3 4 5 6 7...20

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与NCP1443相关器件

型号	品牌	获取价格	描述	数据表
NCP1443FR4	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1443FR4G	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1443T	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1443TG	ONSEMI	获取价格	8A SWITCHING REGULATOR, 320kHz SWITCHING FREQ-MAX, PSFM7, TO-220, 7 PIN
NCP1444	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1444FR4	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1444FR4G	ONSEMI	获取价格	IC,SMPS CONTROLLER,CURRENT-MODE,SIP,7PIN,PLASTIC
NCP1444T	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators
NCP1444TG	ONSEMI	获取价格	8A SWITCHING REGULATOR, 640kHz SWITCHING FREQ-MAX, PSFM7, TO-220, 7 PIN
NCP1445	ONSEMI	获取价格	4.0 A 280 kHz/560 kHz Boost Regulators

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