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SC191AWLTRT PDF预览

SC191AWLTRT

更新时间: 2024-10-01 04:02:23
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
13页 399K
描述
Low Supply Ripple Synchronous Buck Conversion Regulator

SC191AWLTRT 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:SOIC
包装说明:VSON, SOLCC8,.1,20针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.75
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:5.5 V最小输入电压:2.7 V
标称输入电压:3.6 VJESD-30 代码:S-PDSO-N8
JESD-609代码:e3长度:2.3 mm
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.94 A封装主体材料:PLASTIC/EPOXY
封装代码:VSON封装等效代码:SOLCC8,.1,20
封装形状:SQUARE封装形式:SMALL OUTLINE, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:0.8 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:1120 kHz温度等级:INDUSTRIAL
端子面层:MATTE TIN端子形式:NO LEAD
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:2.3 mm
Base Number Matches:1

SC191AWLTRT 数据手册

 浏览型号SC191AWLTRT的Datasheet PDF文件第2页浏览型号SC191AWLTRT的Datasheet PDF文件第3页浏览型号SC191AWLTRT的Datasheet PDF文件第4页浏览型号SC191AWLTRT的Datasheet PDF文件第5页浏览型号SC191AWLTRT的Datasheet PDF文件第6页浏览型号SC191AWLTRT的Datasheet PDF文件第7页 
SC191  
Low Supply Ripple Synchronous  
Buck Conversion Regulator  
POWER MANAGEMENT  
Description  
Features  
The SC191 is a synchronous step-down converter with  
integrated power devices and an integrated front-end  
LDO regulator to minimize input supply ripple. If supply  
ripple is not a concern, the front-end LDO regulator can be  
bypassed externally to maximize efciency.  
‹ Less than 1mV Supply Ripple  
‹ 2.7V to 5.5V Input Range  
‹ 330mA Guaranteed Output Current  
‹ Fixed Frequency 1MHz Operation  
‹ No Schottky Diode Required  
‹ Over-Current Protection  
TheinternalMOSFETswitchesprovidepeakcurrentgreater  
than 550mA to achieve a DC output of at least 330mA over  
the rated input voltage range, making the SC191 ideal for  
single-cell Li-ion battery applications as well as xed 3.3V  
and 5V xed input applications. The output is a xed 1.2V  
- ideal for low-voltage microprocessors. Other voltage  
options are available (consult the factory for details).  
‹ Over-Voltage Protection  
‹ Over-Temperature Protection  
‹ Soft-Start  
‹ No External Compensation Required  
‹ MLPD-8, 2.3mm x 2.3mm Package  
‹ WEEE and RoHS Compliant  
Applications  
Additional features include internal soft-start to limit in-  
rush current, over-current protection, over-temperature  
protection, and over-voltage protection.  
‹ Cell Phones  
‹ Cordless Phones  
‹ Notebook and Subnotebook Computers  
‹ PDAs and Mobile Communicators  
‹ WLAN Peripherals  
‹ Wireless Modules  
‹ 1 Li-Ion or 3 NiMH/NiCd Powered Devices  
The 1MHz switching frequency allows the use of small  
surface mount capacitors and inductors, and no other  
external compensation components are needed. The  
device is available in a low prole (0.8mm max height)  
2.3mm x 2.3mm MLPD 8-lead package, minimizing area  
without compromising performance.  
Patent Pending  
Typical Application Circuit  
L
4.7μH  
SC191  
8
3
4
2
VOUT  
LX  
VIN  
VIN  
EN  
5
CIN  
4.7μF  
VOUT  
PVIN  
COUT  
1
6
BP  
4.7μF  
CBP  
7
PGND  
GND  
4.7μF  
1
April 12, 2006  
www.semtech.com  

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