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NCP1587E PDF预览

NCP1587E

更新时间: 2024-11-08 05:52:03
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 406K
描述
Low Voltage Synchronous Buck Controller

NCP1587E 数据手册

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NCP1587E  
Low Voltage Synchronous  
Buck Controller  
The NCP1587E 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 8pin device provides an optimal  
level of integration to reduce size and cost of the power supply. The  
NCP1587E provides a 1 A gate driver design and an internally set  
275 kHz oscillator. In addition to the 1 A gate drive capability, other  
efficiency enhancing features of the gate driver include adaptive  
nonoverlap circuitry. The device also incorporates an externally  
compensated error amplifier and a capacitor programmable softstart  
function. Protection features include programmable short circuit  
protection and under voltage lockout (UVLO). The NCP1587E comes  
in an 8pin SOIC package.  
http://onsemi.com  
MARKING DIAGRAM  
8
SOIC8  
D SUFFIX  
CASE 751  
1587E  
ALYW  
G
8
1
1
1587E= Specific Device Code  
A
L
= Assembly Location  
= Wafer Lot  
Features  
Y
W
G
= Year  
= Work Week  
= PbFree Device  
Input Voltage Range from 4.5 to 13.2 V  
275 kHz Internal Oscillator  
Boost Pin Operates to 30 V  
Voltage Mode PWM Control  
0.8 V 1.0 % Internal Reference Voltage  
Adjustable Output Voltage  
PIN CONNECTIONS  
Capacitor Programmable SoftStart  
Internal 1 A Gate Drivers  
BST  
TG  
PHASE  
COMP/DIS  
FB  
1
2
3
4
8
7
6
5
80% Max Duty Cycle  
GND  
BG  
Input Under Voltage Lockout  
Programmable Current Limit  
This is a PbFree Device  
V
CC  
(Top View)  
Applications  
Graphics Cards  
ORDERING INFORMATION  
Desktop Computers  
Device  
NCP1587EDR2G  
Package  
Shipping  
2500/Tape & Reel  
Servers / Networking  
DSP & FPGA Power Supply  
DCDC Regulator Modules  
SOIC8  
(PbFree)  
†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, 2009  
1
Publication Order Number:  
June, 2009 Rev. 0  
NCP1587E/D  

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