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MIC2128YML-TS

更新时间： 2024-09-16 21:16:31
品牌 Logo 应用领域
美国微芯 - MICROCHIP 开关
页数 文件大小 规格书
36页 965K
描述
Switching Controller

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中文翻译

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MIC2128YML-TS 技术参数

生命周期：Active包装说明：,
Reach Compliance Code：compliant风险等级：5.75
模拟集成电路 - 其他类型：SWITCHING CONTROLLERBase Number Matches：1

MIC2128YML-TS 数据手册

 浏览型号MIC2128YML-TS的Datasheet PDF文件第2页浏览型号MIC2128YML-TS的Datasheet PDF文件第3页浏览型号MIC2128YML-TS的Datasheet PDF文件第4页浏览型号MIC2128YML-TS的Datasheet PDF文件第5页浏览型号MIC2128YML-TS的Datasheet PDF文件第6页浏览型号MIC2128YML-TS的Datasheet PDF文件第7页 
MIC2128  
75V, Synchronous Buck Controller Featuring Adaptive  
On-Time Control with External Soft Start  
Features  
General Description  
• Hyper Speed Control® Architecture Enables:  
The MIC2128 is a constant-frequency synchronous  
buck controller featuring a unique adaptive on-time  
control architecture with external soft start. The  
MIC2128 operates over an input voltage range from  
4.5V to 75V.The output voltage is adjustable down to  
0.6V with a guaranteed accuracy of ±1%. The device  
operates with programmable switching frequency from  
270 kHz to 800 kHz.  
- High Input to Output Voltage Conversion  
Ratio Capability  
- Any Capacitor™ Stable  
- Ultra-Fast Load Transient Response  
• Wide 4.5V to 75V Input Voltage Range  
• Adjustable Output Voltage from 0.6V to 30V  
• 270 kHz to 800 kHz Programmable Switching  
Frequency  
The MIC2128 features an external soft start pin (SS)  
which allows the user to adjust output soft start time to  
reduce inrush current from mains during start-up. The  
MIC2128 features an auxiliary bootstrap LDO which  
improves the system efficiency by supplying the  
MIC2128 internal circuit bias power and gate drivers  
from output of the converter. A logic level enable (EN)  
signal can be used to enable or disable the  
controller.The MIC2128 can start-up monotonically into  
a prebiased output. The MIC2128 features an open  
drain power good signal (PG) which signals when the  
output is in regulation and can be used for simple  
power supply sequencing purpose.  
• Built-in 5V Regulator for Single-Supply Operation  
• Auxiliary Bootstrap LDO for Improving System  
Efficiency  
• Internal Bootstrap Diode  
• Adjustable Soft Start Time  
• Enable Input and Power Good Output  
• Programmable Current Limit  
• Hiccup Mode Short-Circuit Protection  
• Internal Compensation and Thermal Shutdown  
• Supports Safe Start-Up into a Prebiased Output  
The MIC2128 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, “hiccup” mode  
short-circuit protection and thermal shutdown.  
Applications  
• Networking/Telecom Equipment  
• Base Station, Servers  
The MIC2128 is available in a 16-pin 3 mm x 3 mm  
VQFN package, with an operating junction temperature  
range from -40°C to +125°C.  
• Distributed Power Systems  
• Industrial Power Supplies  
Package Types  
MIC2128  
3 x 3 VQFN* (Top View)  
13  
16 15 14  
PG  
ILIM  
1
SS  
12  
11  
2
3
4
FREQ  
EN  
EP  
SW  
10  
9
BST  
EXTVDD  
5
6
7
8
* Includes Exposed Thermal Pad (EP); see Table 3-1.  
2016-2019 Microchip Technology Inc.  
DS20005620D-page 1  
1234567...36

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