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SC4525ASETRT PDF预览

SC4525ASETRT

更新时间: 2024-11-19 04:05:23
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
19页 781K
描述
28V 3A Step-Down Switching Regulator

SC4525ASETRT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:HSOP, SOP8,.25针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.7
Is Samacsys:N模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:28 V最小输入电压:8 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e3长度:4.9 mm
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:6.6 A封装主体材料:PLASTIC/EPOXY
封装代码:HSOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:1560 kHz温度等级:AUTOMOTIVE
端子面层:MATTE TIN端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm
Base Number Matches:1

SC4525ASETRT 数据手册

 浏览型号SC4525ASETRT的Datasheet PDF文件第2页浏览型号SC4525ASETRT的Datasheet PDF文件第3页浏览型号SC4525ASETRT的Datasheet PDF文件第4页浏览型号SC4525ASETRT的Datasheet PDF文件第5页浏览型号SC4525ASETRT的Datasheet PDF文件第6页浏览型号SC4525ASETRT的Datasheet PDF文件第7页 
SC4525A  
28V 3A Step-Down Switching Regulator  
POWER MANAGEMENT  
Features  
Description  
Wide input range: 8V to 28V  
3A Output Current  
200kHz to 2MHz Programmable Frequency  
Precision ꢀV Feedback Voltage  
Peak Current-Mode Control  
Cycle-by-Cycle Current Limiting  
Hiccup Overload Protection with Frequency Foldback  
Soft-Start and Enable  
Thermal Shutdown  
The SC4525A is a constant frequency peak current-mode  
step-down switching regulator capable of producing 3A  
output current from an input ranging from 8V to 28V. The  
switching frequency of the SC4525A is programmable  
up to 2MHz, allowing the use of small inductors and  
ceramic capacitors for miniaturization, and high input/  
output conversion ratio. The SC4525A is suitable for  
next generation XDSL modems, high-definition TVs and  
various point of load applications.  
Thermally Enhanced 8-pin SOIC Package  
Fully RoHS and WEEE compliant  
Peak current-mode PWM control employed in the  
SC4525Aachievesfasttransientresponsewithsimpleloop  
compensation. Cycle-by-cycle current limiting and hiccup  
overload protection reduces power dissipation during  
output overload. Soft-start function reduces input start-  
up current and prevents the output from overshooting  
during power-up.  
Applications  
XDSL and Cable Modems  
Set Top Boxes  
Point of Load Applications  
CPE Equipment  
DSP Power Supplies  
LCD and Plasma TVs  
The SC4525A is available in SOIC-8 EDP package.  
Typical Application Circuit  
Efficiency  
90  
D1  
10V – 28V  
V
IN  
1N4148  
C1  
0.1mF  
C4  
4.7mF  
80  
VIN = 24V  
VIN = 12V  
BST  
SW  
IN  
L1  
OUT  
5V/3A  
5.2mH  
70  
60  
50  
40  
R4  
SC4525A  
SS/EN  
33.2k  
FB  
GND  
COMP  
ROSC  
D2  
20BQ030  
R6  
8.25k  
C2  
10mFX3  
C7  
10nF  
R7  
24.3k  
R5  
18.2k  
C8  
10pF  
C5  
1nF  
0.0  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
L1: Coiltronics CD1-5R2  
C2: Murata GRM31CR60J106K  
C4: Murata GRM32ER71H475K  
Load Current (A)  
Figure 1. 1MHz 10V -28V to 5V/3A Step-down Converter  
November 8, 2007  

SC4525ASETRT 替代型号

型号 品牌 替代类型 描述 数据表
SC4525CSETRT SEMTECH

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