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NCP1580DR2

更新时间： 2024-11-20 04:37:59
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
12页 93K
描述
Low Voltage Synchronous Buck Controller

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NCP1580DR2 数据手册

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NCP1580  
Low Voltage Synchronous  
Buck Controller  
The NCP1580 is a voltage mode PWM controller designed to  
operate from a 5.0 V or 12 V supply and produce an output voltage as  
low as 0.8 V. This 8−pin device provides an optimal level of  
integration to reduce size and cost of the power supply. The NCP1580  
has a fixed 350 kHz oscillator and soft−start function. The NCP1580  
provides a 1.5 A floating gate driver design to drive N−Channel  
MOSFETs in a synchronous configuration. Adaptive non−overlap  
circuitry reduces switching losses by preventing simultaneous  
conduction of both outputs. Protection features include thermal  
shutdown and undervoltage lockout (UVLO). The NCP1580 is  
available in an 8−pin SOIC package.  
http://onsemi.com  
MARKING  
DIAGRAM  
8
SOIC−8  
D SUFFIX  
1580  
ALYW  
8
CASE 751  
1
1
Features  
A
L
Y
W
= Assembly Location  
= Wafer Lot  
= Year  
• Input Voltage Range from 4.5 V to 13.2 V  
• 350 kHz Internal Oscillator  
• Boost Pin Operates to 26.5 V  
• Voltage Mode PWM Control  
• 0.8 V $1.5% Internal Reference Voltage  
• Adjustable Output Voltage  
• Internal Soft−Start  
• Internal 1.5 A Gate Drivers  
• Adaptive Non−Overlap Circuit  
• 90% Max Duty Cycle  
= Work Week  
PIN CONNECTIONS  
BST  
TG  
PHASE  
COMP  
FB  
1
2
3
4
8
7
6
5
GND  
BG  
V
CC  
• Input UVLO  
(Top View)  
• Overtemperature Protection  
• Fully Specified over −40°C to 85°C  
• Pb−Free Package is Available  
ORDERING INFORMATION  
†
Device  
Package  
Shipping  
Applications  
NCP1580DR2  
SOIC−8  
2500/Tape & Reel  
2500/Tape & Reel  
• Graphics Cards  
NCP1580DR2G  
SOIC−8  
(Pb−Free)  
• Desktop Computers  
• Servers/Networking  
• DSP and FPGA Power Supply  
• DC−DC Regulator Modules  
†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.  
V
IN  
V
CC  
BST  
FB  
COMP  
GND  
TG  
V
OUT  
SWN  
BG  
Figure 1. Typical Application Diagram  
1
Semiconductor Components Industries, LLC, 2005  
Publication Order Number:  
January, 2005 − Rev. 4  
NCP1580/D  
1234567...12

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NCP1580DR2 替代型号

型号 品牌 替代类型 描述 数据表
NCP1580DR2G ONSEMI

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