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NCP1582

更新时间： 2024-11-08 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
16页 155K
描述
Low Voltage Synchronous Buck Controllers

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NCP1582 数据手册

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NCP1582, NCP1582A,  
NCP1583  
Low Voltage Synchronous  
Buck Controllers  
The NCP158x is a low cost PWM controller designed to operate from  
a 5 V or 12 V supply. This device is capable of producing 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. Features include a  
0.7 A gate driver and an internally set 350 kHz (NCP1582, NCP1582A)  
and a 300 kHz (NCP1583) oscillator. The NCP158x also incorporates an  
externally compensated transconductance error amplifier and a  
programmable soft−start function. Protection features include short  
circuit protection (SCP) and under voltage lockout (UVLO). The  
NCP158x comes in an 8−pin SOIC package.  
http://onsemi.com  
MARKING DIAGRAM  
8
SOIC−8  
D SUFFIX  
CASE 751  
158x  
ALYW  
G
8
1
1
x
A
L
= 2, 2A or 3  
= Assembly Location  
= Wafer Lot  
Features  
Y
W
G
= Year  
= Work Week  
= Pb−Free Device  
• Input Voltage Range from 4.5 V to 13.2 V  
• 350 kHz (NCP1582, NCP1582A), 300 kHz (NCP1583) Internal  
Oscillator  
PIN CONNECTIONS  
• Boost Pin Operates to 30 V  
• Voltage Mode PWM Control  
BST  
TG  
PHASE  
COMP/DIS  
FB  
1
2
3
4
8
7
6
5
• 0.8 V $1.5% Internal Reference Voltage  
• Adjustable Output Voltage  
• Programmable Soft−Start  
• Internal 0.7 A Gate Drivers  
• 80% Max Duty Cycle  
GND  
BG  
V
CC  
(Top View)  
• Input UVLO  
• R  
Current Sensing for Short Circuit Protection  
DS(on)  
NCP158x  
Series  
Oscillator  
Frequency  
SCP Trip Voltage  
• These are Pb−Free Devices  
NCP1582  
NCP1582A  
NCP1583  
350 kHz  
350 kHz  
300 kHz  
−350 mV  
−450 mV  
−350 mV  
Applications  
• Graphics Cards  
• Desktop Computers  
• Servers/Networking  
• DSP and FPGA Power Supply  
• DC−DC Regulator Modules  
ORDERING INFORMATION  
†
Device  
Package  
Shipping  
V
IN  
NCP1582DR2G  
SOIC−8  
2500/Tape & Reel  
(Pb−Free)  
V
CC  
BST  
FB  
NCP1582ADR2G  
SOIC−8  
2500/Tape & Reel  
2500/Tape & Reel  
(Pb−Free)  
COMP/DIS  
TG  
NCP1583DR2G  
SOIC−8  
(Pb−Free)  
V
PHASE  
OUT  
†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.  
BG  
GND  
Figure 1. Typical Application Diagram  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
July, 2006 − Rev. 2  
NCP1582/D  
1234567...16

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