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MIC261201 PDF预览

MIC261201

更新时间： 2024-01-14 02:52:12
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器
页数 文件大小 规格书
30页 988K
描述
28V, 12A Hyper Speed Control? Synchronous DC/DC Buck Regulator

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中文翻译

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MIC261201 技术参数

生命周期：Active包装说明：HVQCCN,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.68
Is Samacsys：N其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 5.5V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
最大输入电压：28 V最小输入电压：4.5 V
标称输入电压：12 VJESD-30 代码：R-XQCC-N28
长度：6 mm功能数量：1
端子数量：28最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：12 A
标称输出电压：5 V封装主体材料：UNSPECIFIED
封装代码：HVQCCN封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE认证状态：Not Qualified
座面最大高度：0.9 mm表面贴装：YES
切换器配置：BUCK最大切换频率：750 kHz
温度等级：AUTOMOTIVE端子形式：NO LEAD
端子节距：0.65 mm端子位置：QUAD
宽度：5 mmBase Number Matches：1

MIC261201 数据手册

 浏览型号MIC261201的Datasheet PDF文件第2页浏览型号MIC261201的Datasheet PDF文件第3页浏览型号MIC261201的Datasheet PDF文件第4页浏览型号MIC261201的Datasheet PDF文件第5页浏览型号MIC261201的Datasheet PDF文件第6页浏览型号MIC261201的Datasheet PDF文件第7页 
MIC261201  
28V, 12A Hyper Speed Control™  
Synchronous DC/DC Buck Regulator  
SuperSwitcher II™  
General Description  
Features  
•
Hyper Speed Control™ architecture enables  
- High Delta V operation (VIN = 28V and VOUT = 0.8V)  
- Small output capacitance  
The Micrel MIC261201 is a constant-frequency, synchronous  
buck regulator featuring a unique adaptive on-time control  
architecture. The MIC261201 operates over an input supply  
range of 4.5V to 28V and provides a regulated output of up to  
12A of output current. The output voltage is adjustable down  
to 0.8V with a guaranteed accuracy of ±1%, and the device  
operates at a switching frequency of 600kHz.  
•
•
•
•
•
•
•
•
•
4.5V to 28V voltage input  
12A output current capability, up to 95% efficiency  
Adjustable output from 0.8V to 5.5V  
±1% feedback accuracy  
Any Capacitor® Stable – zero-to-high ESR  
600kHz switching frequency  
Micrel’s Hyper Speed Control™ architecture allows for ultra-  
fast transient response while reducing the output capacitance  
and also makes (High VIN)/(Low VOUT) operation possible.  
This adaptive tON ripple control architecture combines the  
advantages of fixed-frequency operation and fast transient  
response in a single device.  
No external compensation  
Power Good (PG) output  
Foldback current-limit and “hiccup mode” short-circuit  
protection  
Supports safe startup into a pre-biased load  
–40°C to +125°C junction temperature range  
28-pin 5mm × 6mm MLF® package  
The MIC261201 offers a full suite of protection features to  
ensure protection of the IC during fault conditions. These  
include undervoltage lockout to ensure proper operation  
under power-sag conditions, internal soft-start to reduce  
inrush current, foldback current limit, “hiccup mode” short-  
circuit protection and thermal shutdown. An open-drain  
Power Good (PG) pin is provided.  
•
•
•
Applications  
All support documentation can be found on Micrel’s web  
site at: www.micrel.com.  
•
•
•
•
Distributed power systems  
Communications/networking infrastructure  
Set-top box, gateways and routers  
Printers, scanners, graphic cards and video card  
___________________________________________________________________________________________________________  
Typical Application  
Efficiency (VIN = 12V)  
vs. Output Current  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
5.0V  
3.3V  
2.5V  
1.8V  
1.5V  
1.2V  
1.0V  
0.9V  
0.8V  
VIN = 12V  
0
3
6
9
12  
15  
OUTPUT CURRENT (A)  
Hyper Speed Control, SuperSwitcher II, and Any Capacitor are trademarks of Micrel, Inc.  
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.  
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
M9999-071311-A  
July 2011  
1234567...30

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