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MIC2174-1YMM PDF预览

MIC2174-1YMM

更新时间： 2024-02-12 19:47:48
品牌 Logo 应用领域
麦瑞 - MICREL 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输出元件
页数 文件大小 规格书
27页 665K
描述
Synchronous Buck Controller Featuring Adaptive On-Time Control 40V Input, 300kHz

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中文翻译

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MIC2174-1YMM 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP,Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.83其他特性：ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.8V
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：HYSTERETIC CURRENT MODE最大输入电压：5.5 V
最小输入电压：3 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e4长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.1 mm
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：375 kHz温度等级：AUTOMOTIVE
端子面层：NICKEL PALLADIUM GOLD端子形式：GULL WING
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：40宽度：3 mm
Base Number Matches：1

MIC2174-1YMM 数据手册

 浏览型号MIC2174-1YMM的Datasheet PDF文件第2页浏览型号MIC2174-1YMM的Datasheet PDF文件第3页浏览型号MIC2174-1YMM的Datasheet PDF文件第4页浏览型号MIC2174-1YMM的Datasheet PDF文件第5页浏览型号MIC2174-1YMM的Datasheet PDF文件第6页浏览型号MIC2174-1YMM的Datasheet PDF文件第7页 
MIC2174/MIC2174C  
Synchronous Buck Controller  
Featuring Adaptive On-Time Control  
40V Input, 300kHz  
Hyper Speed Control™ Family  
General Description  
Features  
The Micrel MIC2174/MIC2174C is a fixed-frequency,  
synchronous buck controller featuring adaptive on-time  
control. The MIC2174/MIC2174C operates over an input  
supply range of 3V to 40V at a fixed switching frequency of  
300kHz and is capable of driving 25A of output current.  
The output voltage is adjustable down to 0.8V.  
•
Hyper Speed Control™ architecture enables:  
– High delta V operation (VHSD = 40V and VOUT = 0.8V)  
– Smaller output capacitors than competitors  
3V to 40V input voltage  
•
•
Any CapacitorTM stable  
-Zero ESR to high ESR  
A unique Hyper Speed Control™ architecture allows for  
ultra-fast transient response while reducing the output  
capacitance. It also makes ultra-fast transient response  
while reducing the output capacitance and also allows for  
extremely low duty-cycle operation. The MIC2174 /  
MIC2174C utilizes an adaptive TON ripple controlled  
architecture. A UVLO is provided to ensure proper  
operation under power-sag conditions to prevent the  
external power MOSFET from overheating. A soft-start is  
provided to reduce inrush current. Foldback current limit  
and “hiccup” mode short-circuit protection ensure FET and  
load protection.  
•
•
•
•
•
•
•
300kHz switching frequency  
Adjustable output from 0.8V to 5.5V (VHSD ≤ 28V)  
Adjustable output from 0.8V to 3.6V (VHSD > 28V)  
±1% FB accuracy (MIC2174)  
±3% FB accuracy (MIC2174C)  
Up to 94% efficiency  
Foldback current limit and “hiccup” mode short-circuit  
protection  
•
•
•
Thermal shutdown  
Safe start-up into pre-biased loads  
–40°C to +125°C junction temperature range  
The MIC2174/MIC2174C is available in a 10-pin MSOP  
(MAX1954A-compatible) package with an operating  
junction temperature range from –40°C to +125°C.  
All support documentation can be found on Micrel’s web  
site at: www.micrel.com.  
Applications  
•
•
•
Telecom Networking  
Industrial Equipment  
Distributed DC power systems  
____________________________________________________________________________________________________________  
Typical Application  
12V to 3.3V Efficiency  
100  
95  
90  
85  
80  
75  
70  
65  
60  
VIN=5V  
55  
50  
0
2
4
6
8
10  
OUTPUT CURRENT (A)  
Synchronous Buck Controller Featuring Adaptive On-Time Control  
Hyper Speed Control and Any Capacitor are trademarks of Micrel, 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  
M9999-091310-C  
September 2010  
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中文翻译

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