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SC122

更新时间： 2024-01-12 07:51:16
品牌 Logo 应用领域
商升特 - SEMTECH 转换器升压转换器
页数 文件大小 规格书
13页 197K
描述
Low Voltage Synchronous Boost Converter

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中文翻译

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SC122 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：SOIC包装说明：1.5 X 2 MM, 0.60 MM, HALOGEN FREE AND ROHS COMPLIANT, MLPD-6
针数：6Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.76Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
JESD-30 代码：R-PDSO-N6端子数量：6
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SON
封装等效代码：SOLCC6,.08,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES最大切换频率：1200 kHz
温度等级：COMMERCIAL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 SPECIFIEDBase Number Matches：1

SC122 数据手册

 浏览型号SC122的Datasheet PDF文件第2页浏览型号SC122的Datasheet PDF文件第3页浏览型号SC122的Datasheet PDF文件第4页浏览型号SC122的Datasheet PDF文件第5页浏览型号SC122的Datasheet PDF文件第6页浏览型号SC122的Datasheet PDF文件第7页 
SC122  
Low Voltage Synchronous  
Boost Converter  
POWER MANAGEMENT  
Features  
Description  
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Input voltage — 0.7V to 1.6V  
Minimum start-up voltage — 0.85V  
Output voltage fixed at 3.3V  
Peak input current limit — 350mA typically  
Output current 95mA at VIN = 1.6V, 50mA at VIN = 0.9V  
Efficiency up to 80%  
The SC122 is a high efficiency, low noise, synchronous  
step-up DC-DC converter. It produces a fixed 3.3V output  
from a single cell alkaline or NiMH battery. It features an  
internal 1.2A switch and synchronous rectifier to achieve  
high efficiency and to eliminate the need for an external  
Schottky diode.  
Internal synchronous rectifier  
The SC122 operates exclusively in voltage-hysteretic  
power save mode (PSAVE) for high efficiency under light  
load conditions. It features anti-ringing circuitry for  
reduced EMI in noise sensitive applications. While dis-  
abled, the output remains in a high impedance state to  
preserve the charge on the output capacitor. This permits  
ultra-low idle quiescent currents in applications in which  
the SC122 can be periodically enabled by an external con-  
troller to recharge the output capacitor.  
Switching frequency — 1.2MHz  
Power save (voltage hysteretic) control  
Anti-ringing circuit  
Operating supply current (measured at OUT) — 40μA  
No forward conduction path during shutdown  
MLPD-UT-6 1.5 × 2.0 × 0.6 (mm) package  
Lead-free and halogen-free  
WEEE and RoHS compliant  
Applications  
Low quiescent current is obtained despite a high 1.2MHz  
operating frequency. Small external components and the  
space saving MLPD-UT-6, 1.5×2.0×0.6 (mm) package,  
make this device an excellent choice for small handheld  
applications that require the longest possible battery life.  
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Electric toothbrushes  
Personal medical products  
Single-cell alkaline, NiCd, or NiMH applications  
Typical Application Circuit  
L1  
IN  
LX  
Single  
Cell  
OUT  
3.3V  
EN  
(1.2V)  
GND  
GND  
CIN  
COUT  
SC122  
February 1, 2010  
1
© 2010 Semtech Corporation  
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中文翻译

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