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SC631ULTRT

更新时间： 2024-11-25 06:10:15
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泵
页数 文件大小 规格书
14页 232K
描述
Fixed 4.4V Output Charge Pump Regulator

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中文翻译

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SC631ULTRT 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：2 X 2 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, MLPD-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.81
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR
最大输入电压：5.5 V最小输入电压：2.9 V
标称输入电压：3.2 VJESD-30 代码：S-XDSO-N8
JESD-609代码：e3长度：2 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：0.5 A标称输出电压：4.4 V
封装主体材料：UNSPECIFIED封装代码：HVSON
封装等效代码：SOLCC8,.08,20封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.6 mm
子类别：Other Analog ICs表面贴装：YES
切换器配置：BOOST温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)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：30宽度：2 mm
Base Number Matches：1

SC631ULTRT 数据手册

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SC631  
Fixed 4.4V Output  
Charge Pump Regulator  
POWER MANAGEMENT  
Features  
Description  
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Input voltage range — 2.9V to 5.5V  
OUT tolerance — 4.4V ±±3  
Continuous output current — 250mA  
Peak output current — 500mA  
Three charge pump modes: 1x, 1.5x and 2x  
Output ripple ≤ ±0mVPP for IOUT ≤ 400mA  
Short circuit, over-voltage, and over-temperature  
protection  
The SC6±1 is a high-current voltage regulator using  
Semtech’s proprietary low-noise charge pump technol-  
ogy. Performance is optimized for use in single Li-Ion  
battery cell applications. The regulator provides the per-  
formance of a linear, low drop-out (LDO) voltage regulator  
when the input is greater than 4.4V. Unlike an LDO, drop-  
out is avoided when the input is less than 4.4V. Instead, a  
charge pump is activated to provide voltage boost and  
the head-room needed for voltage regulation.  
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Soft-start functionality  
Shutdown current — 0.1μA, typical  
Ultra thin package — 2 x 2 x 0.6 (mm)  
Fully WEEE and RoHS compliant  
Only two 2.2μF bucket capacitors are required to deliver  
the full output current. The charge pump provides a low  
EMI solution compared to inductive boost regulators.  
Applications  
The SC6±1’s charge pump has three modes of operation:  
2x, 1.5x, and 1x modes. The 2x and 1.5x modes deliver  
current to the load in each of two phases. The 1x mode  
turns off the charge pump, delivering current through an  
LDO. When active, the charge pump provides low-ripple  
operation at 200kHz, which is typically less than ±0mVpp  
at the output. The SC6±1 is capable of delivering 250mA  
continuous current, with peak current to 500mA. A 22μF  
output capacitor is used for decoupling the load and for  
smoothing mode transitions. Hysteresis is provided to  
prevent chatter between charge pump modes.  
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Mobile phones  
Multi-LED backlit LCDs  
PMPs  
Digital video cameras  
Digital still cameras  
PDAs  
LED camera flash  
Audio amplifier power  
The micro lead-frame package is both small and thermally  
efficient, measuring 2 x 2 x 0.6 (mm).  
Typical Application Circuit  
VOUT = 4.4V @ 250mA  
IN  
OUT  
CIN  
22μF  
COUT  
VBAT  
22μF  
SC631  
Chip  
enable  
C1+  
C1-  
EN  
C1  
2.2μF  
C2+  
C2-  
C2  
2.2μF  
GND  
Patents Pending  
July 24, 2008  
1
© 2008 Semtech Corporation  
1234567...14

中文翻译

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