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MIC4682BM

更新时间： 2024-11-18 22:51:23
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器开关光电二极管
页数 文件大小 规格书
15页 227K
描述
PRECISION CURRENT LIMIT SO-8 SUPERSWITCHER BUCK REGULATOR

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中文翻译

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MIC4682BM 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：SOP, SOP8,.25Reach Compliance Code：not_compliant
风险等级：5.28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：34 V最小输入电压：4 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9 mm
湿度敏感等级：1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：1.1 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：240
认证状态：Not Qualified座面最大高度：1.879 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：220 kHz
温度等级：AUTOMOTIVE端子面层：Tin/Lead (Sn85Pb15)
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：30
宽度：3.9 mmBase Number Matches：1

MIC4682BM 数据手册

 浏览型号MIC4682BM的Datasheet PDF文件第2页浏览型号MIC4682BM的Datasheet PDF文件第3页浏览型号MIC4682BM的Datasheet PDF文件第4页浏览型号MIC4682BM的Datasheet PDF文件第5页浏览型号MIC4682BM的Datasheet PDF文件第6页浏览型号MIC4682BM的Datasheet PDF文件第7页 
MIC4682  
Precision Current Limit SO-8 SuperSwitcher™ Buck Regulator  
General Description  
Features  
The MIC4682 is an easy-to-use step-down (buck) switch-  
mode voltage regulator. It features a programmable current  
limit that allows 10% current limit accuracy over its full  
operating temperature range. The precision current limit  
makes the MIC4682 ideal for constant-voltage constant-  
current applications, such as simple battery chargers. The  
precision current limit also gives designers the ability to set  
the maximum output current below the saturation current  
rating of the inductor. This allows the use of the smallest  
possible inductors for a given application, saving valuable  
space and cost.  
• Programmable output current limit  
• 10% accuracy over temperature  
• Wide 4V to 34V operating input voltage range  
• Fixed 200kHz PWM operation  
• Power SO-8 package allows 2A continuous output  
current  
• All surface mount solution  
• Internally compensated  
• Less than 1µA typical shutdown-mode current  
• Thermal shutdown protection  
Applications  
• Battery chargers  
• White LED drivers  
• Constant voltage constant current step-down converters  
• Simple step-down regulator with precise current limit  
• USB power supplies  
The MIC4682 is a very robust device. Its 4V to 34V input  
voltage range allows the MIC4682 to safely be used in  
applications where voltage transients may be present. Addi-  
tional protection features include cycle-by-cycle current lim-  
iting and over-temperature shutdown. The MIC4682 is avail-  
ableinathermallyoptimizedpowerSO-8packagethatallows  
it to achieve 2A of continuous output current.  
The MIC4682 requires a minimum number of external com-  
ponents and can operate using a standard series of induc-  
tors. Compensation is provided internally for fast transient  
response and ease of use. The MIC4682 is available in the 8-  
lead power SOP with a –40°C to +125°C junction tempera-  
ture range.  
Typical Application  
MIC4682 Current Limit  
Characteristics  
MIC4682  
6
L1  
+7.5V to +34V  
5V/1A  
5
4
8
1
IN  
SW  
C1  
10µF  
50V  
68µH  
5
R1  
C2  
3.01k  
220µF  
4
3
2
1
0
SHDN  
FB  
(x2)  
10V  
D1  
B240  
R2  
976Ω  
R3  
10M  
ISET  
3
GND  
2, 6, 7  
R4  
16.2k  
VIN = 12V  
0.5  
0
1
1.5  
2
CURRENT LIMIT (A)  
Constant Current/Constant Voltage Li Ion Battery Charger  
SuperSwitcher is a trademark of Micrel, Inc.  
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com  
M0334-102203  
October 2003  
1
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中文翻译

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MIC4682BM 替代型号

型号 品牌 替代类型 描述 数据表
MIC4682BMTR MICREL

类似代替

 Switching Regulator, Voltage-mode, 1.1A, 220kHz Switching Freq-Max, PDSO8, SOIC-8
MIC4682YMTR MICREL

类似代替

 1.1A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PDSO8, LEAD FREE, SOIC-8

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 		1.1 A SWITCHING REGULATOR, 220 kHz SWITCHING FREQ-MAX, PDSO8, SOIC-8
MIC4682YMTR MICREL

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 		1.1A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PDSO8, LEAD FREE, SOIC-8
MIC4682YM-TR MICREL

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 		1.1A SWITCHING REGULATOR, 220kHz SWITCHING FREQ-MAX, PDSO8
MIC4684 MICREL

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 		2A High-Efficiency SuperSwitcher Buck Regulator
MIC4684 MICROCHIP

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 		The MIC4684 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conve
MIC4684_10 MICREL

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 		2A High-Efficiency SuperSwitcher Buck Regulator
MIC4684BM MICREL

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 		2A High-Efficiency SuperSwitcher Buck Regulator
MIC4684BMTR MICREL

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 		Switching Regulator, Voltage-mode, 225kHz Switching Freq-Max, PDSO8, SOP-8
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