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SC121EVB PDF预览

SC121EVB

更新时间： 2024-02-18 07:32:26
品牌 Logo 应用领域
商升特 - SEMTECH 稳压器
页数 文件大小 规格书
23页 330K
描述
Low Voltage Synchronous Boost Regulator

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中文翻译

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SC121EVB 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：1.50 X 2 MM, 0.60 MM HEIGHT, 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：2.31Is Samacsys：N
高边驱动器：NO接口集成电路类型：BUFFER OR INVERTER BASED MOSFET DRIVER
JESD-30 代码：R-PDSO-N6长度：2 mm
功能数量：1端子数量：6
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, 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：0.6 mm最大供电电压：4.5 V
最小供电电压：0.7 V标称供电电压：2.5 V
表面贴装：YES温度等级：INDUSTRIAL
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：1.5 mmBase Number Matches：1

SC121EVB 数据手册

 浏览型号SC121EVB的Datasheet PDF文件第2页浏览型号SC121EVB的Datasheet PDF文件第3页浏览型号SC121EVB的Datasheet PDF文件第4页浏览型号SC121EVB的Datasheet PDF文件第5页浏览型号SC121EVB的Datasheet PDF文件第6页浏览型号SC121EVB的Datasheet PDF文件第7页 
SC121  
Low Voltage Synchronous  
Boost Regulator  
POWER MANAGEMENT  
Features  
Description  
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Input voltage — 0.7V to 4.5V  
The SC121 is a high efficiency, low noise, synchronous  
step-up DC-DC converter that provides boosted voltage  
levels in low-voltage handheld applications. The wide  
input voltage range allows use in systems with single  
NiMH or alkaline battery cells as well as in systems with  
higher voltage battery supplies. It features an internal  
1.2A switch and synchronous rectifier to achieve up to  
94% efficiency and to eliminate the need for an external  
Schottky diode. The output voltage can be set to 3.3V  
with internal feedback, or to any voltage within the speci-  
fied range using a standard resistor divider.  
Minimum start-up voltage — 0.85V  
Output voltage — fixed at 3.3V; adjustable from 1.8V  
to 5.0V  
Peak input current limit — 1.2A  
Output current at 3.3 VOUT — 80mA with VIN = 1.0V,  
190mA with VIN = 1.5V  
Forced PWM operation at all loads  
Efficiency up to 94%  
Internal synchronous rectifier  
No forward conduction path during shutdown  
Switching frequency — 1.2MHz  
Soft-start startup current limiting  
Shutdown current — 0.1μA (typ)  
Ultra-thin 1.5 × 2.0 × 0.6 (mm) MLPD-UT-6 package  
Lead-free and halogen-free  
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The SC121 operates exclusively in Pulse Width Modulation  
(PWM) mode for low ripple and fixed-frequency switching.  
Output disconnect capability is included to reduce leakage  
current, improve efficiency, and eliminate external com-  
ponents sometimes needed to disconnect the load from  
the supply during shutdown.  
WEEE and RoHS compliant  
Applications  
Low quiescent current is maintained with 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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MP3 players  
Smart phones and cellular phones  
Palmtop computers and handheld instruments  
PCMCIA cards and memory cards  
Digital cordless phones  
Personal medical products  
Wireless VoIP phones  
Small motors  
Typical Application Circuit  
L1  
IN  
LX  
Single  
Cell  
OUT  
3.3V  
EN  
(1.2V)  
FB  
GND  
CIN  
COUT  
SC121  
April 13, 2010  
1
© 2010 Semtech Corporation  
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中文翻译

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