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SC4521SETRT PDF预览

SC4521SETRT

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软启动光电二极管
页数 文件大小 规格书
18页 323K
描述
3A Step-Down Switching Regulator with Programmable Soft Start

SC4521SETRT 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:ROHS COMPLIANT, MS-012BA, SOIC-8针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.8
Is Samacsys:N其他特性:ALSO OPERATES WITH CURRENT MODE CONTROL
模拟集成电路 - 其他类型:SWITCHING REGULATOR控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:24 V
最小输入电压:4.4 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G8JESD-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:5.5 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):NOT SPECIFIED
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:700 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 mmBase Number Matches:1

SC4521SETRT 数据手册

 浏览型号SC4521SETRT的Datasheet PDF文件第2页浏览型号SC4521SETRT的Datasheet PDF文件第3页浏览型号SC4521SETRT的Datasheet PDF文件第4页浏览型号SC4521SETRT的Datasheet PDF文件第5页浏览型号SC4521SETRT的Datasheet PDF文件第6页浏览型号SC4521SETRT的Datasheet PDF文件第7页 
SC4521  
3A Step-Down Switching Regulator  
with Programmable Soft Start  
POWER MANAGEMENT  
Description  
Features  
The SC4521 is a current mode switching regulator with  
an integrated switch, operating at 600kHz with  
programmable soft start and enable functions. The  
integrated switch allows for cost effective low power  
solutions (peak switch current 3 amps). High frequency  
operation allows for very small passive components.  
Current mode operation allows for fast dynamic response  
and instantaneous duty cycle adjustment as the input  
varies (ideal for CPE applications where the input is a  
wall plug power).  
‹ Wide operating voltage range: 4.4V to 24V  
‹ Integrated 3 Amp switch  
‹ 600kHz frequency of operation  
‹ Programmable soft start funchion  
‹ Current mode control  
‹ Precision enable threshold  
‹ SO-8 EDP Lead-free package, fully WEEE and RoHS  
compliant  
Applications  
‹ XDSL modems  
‹ CPE equipment  
The low shutdown current makes it ideal for portable  
applications where battery life is important.  
‹ DC-DC point of load applications  
‹ Portable equipment  
‹ Digtial consumer electronics  
The SC4521 is an 600kHz switching regulator with a low  
pin count.  
The SC4521 allows customers to use large capacitive  
loads because its programmable soft start limits the dv/  
dt of the output at start up.  
Typical Application Circuit  
D1  
C1  
1
L1  
BST  
2
3
VIN  
VOUT  
IN  
SW  
FB  
5
8
6
Enable  
EN  
SS  
SC4521  
R1  
7
C2  
C3  
COMP  
D2  
GND  
4
R2  
C6  
C4  
R3  
Revision: October 5, 2007  
1
www.semtech.com  

SC4521SETRT 替代型号

型号 品牌 替代类型 描述 数据表
SC4519HSETRT SEMTECH

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600kHz, 3A Step-Down Switching Regulator

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