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NCP1575DG

更新时间： 2024-11-19 21:54:31
品牌 Logo 应用领域
安森美 - ONSEMI 开关控制器
页数 文件大小 规格书
16页 113K
描述
Low Voltage Synchronous Buck Controller with Adjustable Switching Frequency

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NCP1575DG 数据手册

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NCP1575  
Low Voltage Synchronous  
Buck Controller with  
Adjustable Switching  
Frequency  
http://onsemi.com  
The NCP1575 is a low voltage buck controller. It provides the  
control for a DC−DC power solution producing an output voltage as  
low as 0.980 V over a wide current range. It contains all required  
MARKING  
DIAGRAM  
2
circuitry for a synchronous NFET buck regulator using the V t  
control method to achieve the fastest possible transient response and  
best overall regulation. The NCP1575 operates at a default switching  
frequency of 200 kHz, but switching frequency is user−programmable  
8
SOIC−8  
D SUFFIX  
CASE 751  
1575  
ALYW  
8
1
with an additional resistor between R  
and ground. This device  
OSC  
1
provides undervoltage lockout protection, soft−start, and built−in  
adaptive nonoverlap and is assembled in an SOIC−8 package.  
The NCP1575−based solution requires a bias supply of 12 V, and it  
can convert from a bulk power supply ranging from 2 V to 12 V.  
Conversion from bulk supplies greater than 7 V is best accomplished  
by using an external doubler circuit to raise the enhancement voltage  
for the external NFET switches.  
A
L
= Assembly Location  
= Wafer Lot  
Y
W
= Year  
= Work Week  
Features  
PIN CONNECTIONS  
• Pb−Free Packages are Available  
• 0.980 V ±1.0% Reference Voltage  
• V Control Topology  
• 200 ns Transient Response  
• Programmable Soft−Start  
1
8
2
V
GND  
CC  
R
V
FB  
OSC  
NC  
GATE(L)  
GATE(H)  
COMP  
• 40 ns Gate Rise and Fall Times (3.3 nF Load)  
• Adaptive FET Nonoverlap Time  
• Default 200 kHz Oscillator Frequency (No External  
Resistor Required)  
ORDERING INFORMATION  
†
• User−Programmable Oscillator Frequency (One External  
Resistor Required)  
Device  
Package  
Shipping  
NCP1575D  
98 Units/Rail  
98 Units/Rail  
SOIC−8  
• Undervoltage Lockout  
NCP1575DG  
SOIC−8  
(Pb−Free)  
• On/Off Control Through Use of the COMP Pin  
• Overvoltage Protection through Synchronous MOSFETs  
• Synchronous N−Channel Buck Design  
NCP1575DR2  
SOIC−8  
2500 Tape & Reel  
2500 Tape & Reel  
NCP1575DR2G  
SOIC−8  
(Pb−Free)  
• “12 V Only” or Dual Supply Operation  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specifications  
Brochure, BRD8011/D.  
Semiconductor Components Industries, LLC, 2004  
1
Publication Order Number  
November, 2004 − Rev. 6  
NCP1575/D  
1234567...16

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NCP1575DG 替代型号

型号 品牌 替代类型 描述 数据表
NCP1575DR2G ONSEMI

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